Chevrolet 1979 Light Duty Truck Owner's Manual
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Chevrolet 1979 Light Duty Truck Owner's Manual

Chevrolet 1979 Light Duty Truck Owner's Manual

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  • Page 3: Table Of Contents

    The right is reserved to make changes at any time without notice. Fo r vehicles sold in Canada substitute the name General Motors of Canada Limited wherever the name Chevrolet Motor Di vision appears in this manual. Table of Contents Page Section Before Driving Your Truck .

  • Page 4: Vehicle Loading

    IMPORTANT INFORMATION ON VEHICLE LOADING Overloading CAUTION: The components of your vehicle are designed to provide satisfactory service if the vehicle is not loaded in excess of either the Gross Vehicle Weight Rating (GVWR) or the maximum front and rear Gross Axle Weight Ratings (GAWR's).

  • Page 5: Certification Label

    brake, axle and tire capabilities. Actual loads at the front and the rear axles only be determined by weighing the vehicle. This be done at highway weigh stations or other such commercial places. Consult your dealer for assistance. The cargo load should be distributed on both sides of the centerline as equally as possible.
  • Page 6 TRUCK-CAMPER LOADING INFORMATION YOUR VEHICLE'S APPROPRIATE TRUCK-CAMPER LOADING INFORMATION IS LOCATED ON A LABEL AFFIXED TO THE INSIDE OF THE GLOVE BOX DOOR ON THE LEFT SIDE. THIS INFORMATION WILL HELP YOU REDUCE OVERLOADING IMPROPER LOAD DISTRIBUTION IN TRUCK-CAMPER COMBINATIONS. IT WILL ALSO HELP OBTAIN A PROPER PICKUP TRUCK AND SLIDE-IN CAMPER MATCH.

  • Page 7: Trailer Recommendations

    RECOMMENDED CENTER OF GRAVITY LOCATION ZONE Example of Proper Truck and Camper Match Secure loose items to prevent weight shifts that could affect the balance of your vehicle. When the truck-camper is loaded, drive to a scale and weigh on the front and on the rear wheels separately determine axle loads.
  • Page 8 � could result in unsatisfactory truck performance which could result in personal injury. For slide-in camper installation and loading instructions, refer to the slide-in camper manufacturer's recommendations.

  • Page 9: Before Entering Vehicle

    SECTION 1 BEFOR E DRIVING YOUR VEHIC LE DRIVER DAILY CHECKLIST Before Entering Vehicle Be sure you know your vehicle and its equipment and how to use it safely. See that windows, mirrors, and lights are clean and unobstructed. Check whether any tire is low or flat. (If any tire appears different than normal, we recommend you check it with a tire pressure gage.) Check that all lights work.

  • Page 10: Door Locks

    KEYS Two different keys are provided for the locks on your vehicle. The key code is stamped on the "knock out" plug in each key head. Key with square head (letter "A") - for ignition lock only. • Key with oval head (letter for all other locks.

  • Page 11: Inside Rearview Mirror

    INSIDE REARVIEW MIRROR The mirror can be adjusted up, down, or sideways to obtain the best view to the front and rear. Move the mirror lever to the night position to reduce glare from headlights of vehicles behind you. OUTSIDE REARVIEW MIRROR Adjust the outside mirror you can just see the side of your vehicle in the side of the mirror closest to the vehicle.

  • Page 12: Bucket Seats

    SEATS Front Seat (Bench) The entire driver's seat assembly can be moved forward or rearward for the most comfortable position. Push rearward on the lever to release the seat adjuster lock so the seat assembly can be moved forward or rearward as desired.
  • Page 13 Front Seat Latch (Blazer) The front passenger seat is equipped with a self-latching mechanism to keep the seat latched in place. The latch release is located on the right side of the seat. To tilt the seat forward push the seat latch forward to raise the entire seat.
  • Page 14 Removable Rea r Seat (Suburban) If your vehicle is equipped with a quick release third seat, the entire seat assembly may be removed if desired. To remove the seat: Release the latch handle at the outboard side of the seatback and fold the back of the seat to the horizontal lock position.
  • Page 15 Release the latch handle at the outboard side of the seat back and fold the back of the seat to the horizontal lock position. (See illustration). Grasp the release handle at the rear of the seat as shown and pull upward. After the seat is raised make sure it is latched in place by exerting pressure rearward.
  • Page 16 Ma nua l Window Control Tum manual window control clockwise to raise right windows and counterclockwise to raise left windows. Reverse direction to lower window. Ta ilgate and Window The tailgate window must be lowered all the way before the tailgate can be opened.

  • Page 17: Seat Belts

    Power Windows (Optional) Power windows have an ignition interlock so the windows cannot be operated unless the ignition switch is in the ON position. A master control for all windows is provided at the driver's position. Individual switches are provided under both windows for passenger use. SEAT BELTS To help lessen the chance of injury and/or the severity of injury in accidents or sudden stops, General Motors urges that people riding in...
  • Page 19 • To unfasten the belt, push in the button in the center of the buckle. • The retractor is designed to rewind the belt automatically when the front door is opened, or when the belt is pulled out about six inches.
  • Page 20 CAUTION: snug fit with the lap belt positioned low on the hips is necessary to help lessen the chance and/or severity of injury in an accident. This spreads the force of the lap belt over the strong hip bone instead of across the soft abdomen. To help lessen the chance and/or severity 1:1f injury in an accident: never use the same belt for more than one person at a time;...
  • Page 21 • Bring together the buckle end and latch plate end of your lap belt and push the metal tab into the buckle until it clicks. Position the belt across the lap as LOW ON THE HIPS as • possible. Then adjust to a SNUG FIT by pulling on the end of the belt coming from the buckle.

  • Page 22: Restraint Of Pregnant Women

    Restraint Of Pregnant Women General Motors urges that pregnant women use a lap-shoulder belt whenever one is present. This will help Jessen the chance of a pregnant woman and her unborn child being injured and/or will help reduce the severity of their injury in an accident. The lap belt should be used alone if a shoulder belt is not present.
  • Page 23 • All except Crew Cab - In a single motion, pull the rear seat outboard lap belt across the lap far enough to push the latch plate into the buckle, until it clicks. If the belt is not pulled out far enough to reach the buckle, let the lap belt rewind fu lly into its retractor.
  • Page 24 it through the slot. Pull the knob firmly upward to seat it at the narrow end of the keyhole. Then fasten the lap belt. Do this in reverse when taking off the shoulder belt and putting it away. • The detachable shoulder belts can be made shorter and longer in the same way as center seat lap belts.

  • Page 25: Child Restraint

    Seat Belt Inspection (All Except P-Model) • Now and then check that belts, buckles, latch plates, retractors, reminder systems, guide loops, clips, and anchors work properly. Also check for damage that could keep the restraint system from doing its job. •...

  • Page 26: Trailer Towing

    Never let a child stand or kneel on any seat. Children who can sit up by themselves should be placed on a seat and restrained with the seat belts provided. When children ride in a rear seat, they should be restrained with a lap belt. When children ride in the front seat, both lap and shoulder belt should be worn.
  • Page 27 (Ask for the trailering brochure.) Or, write: Consumer Relations Department, Chevrolet Motor Division, Detroit, Michigan 48202. (In Canada, write to General Motors of Canada Limited, Customer Services Department, Oshawa, Ontario L lJ 5Z6).

  • Page 28: Engine Cooling

    • All brake fluid parts must be able to stand 3,000 psi (20 685 kPa). The brake fluid tap must be made to the master cylinder port supplying fluid to rear brakes. Copper tubing is subject to fatigue failure and must not be used. •...

  • Page 29: Operation In Foreign Countries

    To obtain gasoline information and a maintenance schedule for the countries in which you plan to travel, write to: Chevrolet Motor Division, Consumer Relations Department, Detroit, Michigan 48202 (in Canada, write to General Motors of Canada Limited, Customer Services Department, Oshawa, Ontario L lJ 5Z6).

  • Page 31: Starting And Operating

    SECTION 2 STARTING AND OPERATING Engine Exhaust Gas Caution (Carbon Monoxide) Avoid breathing exhaust gas because it contains carbon monoxide, which by itself has no color or odor. Carbon monoxide is a dangerous gas. It can cause unconsciousness and can be lethal. If at any time you think that exhaust fumes are entering the vehicle, have the cause determined and corrected as soon as possible.

  • Page 32: Steering Column Controls

    Close all windows. • Adjust heating or cooling system to force outside air into vehicle • as described in items 1 or 2 above, but with fan set at high speed. On vehicles with outside air vents in or under instrument panel, •...
  • Page 33 • Lock - Normal parking position. Locks the ignition and prevents normal use of the steering wheel and shift controls. The key cannot be returned to "Lock" and removed until shift lever is placed in "Park" on automatic transmission models ("Reverse" on 3 speed manual transmission models).

  • Page 34: Turn Signal Lever

    FO RWARD CO NTROL M O DELS The ignition switch is located on the dash. START The switch has four positions: Ace -For operating accessories only. Off -Turns off engine and accessories. On -For normal operation after engine has been started. Start -Used only when starting engine.

  • Page 35: Starting The Gasoline Engine

    STARTING THE GASOLINE ENGINE NOTICE: To sta rt the optional diesel engine, see your "Diesel Engine Supplement." Apply the parking brake . (Be sure to release the parking brake before driving otT.) 2a. Automatic Transmission Models: Place the transmission shift lever in "Park" or Neutral "N" ("Park"...

  • Page 36: If Engine Fails To Start

    "Specifications" section for more details.) • Engine Codes D and T - Press down the accelerator pedal halfway and hold. Crank the engine by turning the ignition key to "Start." Release key when engine starts. • Engine Codes L, R, S, U - Do not press down the accelerator pedal.
  • Page 37 indicators are arranged with "Park" position at one end, followed in sequence by "Reverse", "Neutral" and the forward driving ranges. All automatic transmissions are equipped with a starter safety switch designed to permit starting the engine only when the transmission selector is in the "Park"...
  • Page 39 �·� Four-Speed On vehicles equipped with this transmission the gearshift lever extends to the left and rearward from the transmission cover mound at center of the floor. This lever is used to shift the transmission gears to the desired position. Part Time Four Wheel D rive (Manual Transmission On ly) Free Wheeling Hubs...
  • Page 40 Shift lever positions as shown on the indicator plate on the floor are: ALL WHEEL DRIVE NEUTRAL REAR WHEEL DRIVE ALL WHEEL DRIVE CONVENTIONAL (PART TIME) SHIFT PATTERN NOTICE: To properly break-in front wheel drive axle components on conventional four wheel drive models. drive the vehicle the initial 200 miles (320 km) in rear wheel drive (2H) position.
  • Page 41 SHIFTING PROCEDURE FOR CONVENTIONAL (PART-TIME) FOUR WHEEL DRIVE NOTE: Tbe transfer case selector placed in 2H (2 wheel drive High Range) position for normal driving. VEHICLE MOVING The transfer case can be Shifted without depressing the clutch and with the understanding that the transfer case ratio is approximately 2:1 you should be able to do this with ease. ratio of 2:1 means that your engine speed must be doubled if shifting from either 2H or 4H to 4L as the shift lever is moved through Neutral.

  • Page 42: Transmission Only

    Ful l Time Four Wheel Drive (Automatic Transmission Only) The transfer case for full time four-wheel drive has an interaxle differential assembly so the vehicle can be driven in four-wheel drive even on dry hard surfaced roads. No provision is made for two-wheel drive at any time and the vehicle is not equipped with free-wheel axle hubs.
  • Page 43 SHIFTING PROC E D U R E FOR FULL TIME FOUR WHEEL DRIVE NOTE: The in H (high range normal transfer case selector lever is placed ) for driving. VEHICLE MOVING The transfer case ratio in High is 1:1 and in low Range is approximately 2:1. When the vehicle is moving, it is necessary to double the engine speed when shifting the transfer case from High Range to Low Range and to decrease the engine speed in half when shifting from low Range to High Range.

  • Page 44: Power Steering

    CAUTION: H LOC (HIGH LOCK) LLOC (LOW LOCK) Either must be used to help avoid excessive wheal spin speeds when there is no traction at any one wheal or if there is a failed component in the drivalina. Personal i njury and severe damage may result from excessive wheal spinning, including tire disintegration•...

  • Page 45: Floor Controls

    To engage the Cruise Control, proceed follows: • Accelerate to desired cruising speed and partially depress and release the control button at the end of the tum signal lever. • Remove your foot from the accelerator pedal and desired speed will automatically be maintained.

  • Page 47: Clutch Pedal

    B RAKE PEDAL TRAVEL If your vehicle has the optional Hydro�boo s t Brake System, brake pedal travel is slightly different from brake pedal travel on other vehicles. You can bring the vehicle to a full stop by applying normal force to pedal the brake Although there is no need to push the pedal beyond...

  • Page 48: Instrument Panel

    • Never drive the truck with the parking brake set as this may overheat the rear brakes, reducing their effectiveness and causing excessive wear or damage. NOTICE: The parking brake should be set first whenever leaving the driver's seat. If the vehicle is parked on a grade an.d the transmission selector lever is placed in "PARK"...
  • Page 49 STANDARD I NSTRUMENT PANE L TEMPE R ATU R E I N D I CATOR L I G HT L P R ESSU R E LI GHT 2. 01 HIGH B EAM I N D I CATOR L I G HTS SPE E DOM ETER ODOM ETE R GEAR S E L ECTOR I N D I CATOR (AUTO.)
  • Page 50 OPTI ONAL I NSTR UMENT PAN E L V O LTM ETER 2. 0 1 L P R ESSU R E GAUGE H I GH B EAM I N D I CATO R L I G HtS SPE E DO M ET E R ODOMETE R B R A K E &...
  • Page 51 GAUGE I N D I C A T O R • Needle may not move away from FULL until some time after fill-up. • Needle may move during turns, stops and accelerations. When the ignition switch is turned to the OFF position, the needle will not necessarily return all the way to the EMPTY mark.

  • Page 53: Oil Pressure Gage

    the high beams or "brights" are in use. The headlight beam switch controls the headlight beams and described in Floor Controls. OPTIONAL GAGES Tachometer The option al Tacho meter indica tes the speed of the engine in revolu tions per minut e. The indica ted numb er, times 100, gives the engine speed.
  • Page 54 Push the control lever to the right to start the electric windshield wiper. The two-speed electric wiper has both a "low" and a "high" speed position. Pressing the control will send a measured amount of water or other cleaning agent onto the windshield and will also cause the wiper lever to move thus starting the wiper motor.

  • Page 55: Light Switch

    Low speed is obtained by sliding the control knob to the second position to the right. High speed is obtained by sliding the control knob to the extreme right position. Mist feature, intended to remove incidental windshield spray such as from passing vehicles is activated by moving the control knob to the extreme left and holding it in this position.

  • Page 56: Cigarette Lighter

    Cigarette Lighter The optional cigarette lighter is located in the ash tray. To operate, push it in. When it becomes heated, it automatically pops out ready for use. Air Vents Conventional model air vents, located in the kick panel on each side of the passen er compartment, are opened with a handle attached directly to the vent.
  • Page 57 • For adequate rear seat heating, the area beneath the front seat must not be blocked by carpeting, rags, paper or other material and fan should operate on high blower. For better driver vision, clear the windshield, rear window, • outside mirrors and all side windows of ice and snow before driving.
  • Page 58 The Maximum A/C position, with Temperature lever in full COLD, is used when maximum cooling is required under conditions of high temperature and humidity. • Norm A/C -Outside air is passed through the system and discharged through upper outlets. This position recommended for most air conditioning situations because of reduced blower noise and reduction of cigarette smoke within the...
  • Page 59 Since refrigerant is controlled by the Four Season System, the only control provided: on the rear overhead system is a three speed blower switch on the instrument panel. In the OFF position, the blower is inoperative, even though the refrigerant is circulating in the system if the front system is ON. To operate the rear overhead system, simply select the desired blower speed (LOW, MED, HI).
  • Page 61 Antenna The standard radio antenna is incorporated in the windshield glass. If necessary, adjustments for maximum antenna effectiveness can be made by your Authorized Dealer. OTH E R CO NTR O LS A N D FEATU R ES LIMITED-SLI P REAR AXLE The optional limited-slip rear axle on vehicles that have it, can give added traction on snow, ice, mud, sand, gravel, etc.

  • Page 62: Soft Top

    SOFT TOP To Fold Back The Top Assembly Unfasten all straps, lay all curtains on top, and loosen rear straps. � � • !F-) .<-wD VIEW B VIEW A TYPICAL Loosen header bolts (6) and tapping screws (4) and release top from forward edge of header and fold back over bow.
  • Page 63 BOW ASSEMBLY f � !> • VIEW A VIEW B Safari Configuration Loosen header bolts and screws and release top from forward edge of header, only up to notch in header. Unsnap side and rear curtain, leave rear straps tight. Before each curtain is rolled up, . fold the ends back to the glass.
  • Page 64 HARDTOP Reasonable precaution in removing and installing the hardtop from utility vehicles will prevent occurrence of excessive distortion and possible damage. BOLT 6 BOLT S BOLT 4 BOLT S BOLT 2 BOLT 1 To remove the top assembly: Remove cover plate from top just behind driver's seat. Disconnect the electrical harness.

  • Page 65: In Case Of Emergency

    You can use either battery for jump starting. Using the procedure below, Chevrolet suggests making the connection to the battery on the driver's side. This battery is closer to the starter and electrical resistance is less.
  • Page 66 NOTICE: you have a diesel engine jump started by a service station or wrecker, be sure the equipment used is volt and negative ground. DO NOT allow the use of 24-volt charging equipment. Using such equipment can cause serious damage to the electrical system or electronic parts in your vehicle.

  • Page 68: Engine Coolant

    M a ke C o nn ections in N u m e rical O rder D ischarged B attery M ak e Last C o n n ection o n E n g i n e . Away fro m B attery B attery in Vehicle w ith C h a rged B attery ENGINE COOLANT...
  • Page 69 • DON'T TURN OFF THE ENGINE. INCREASE THE ENGINE IDLE SPEED until it sounds like it's going about twice as fast as normal idle speed. Bring the idle back to normal after two or three minutes. If the hot light still doesn't go off (or the temperature needle doesn't start to drop}, NOW TURN OFF THE ENGINE and proceed as follows.
  • Page 70 JAC K LOCATION No jack is supplied with P20 or 30 vehicles. STOWAG E I N STRUCTION S - - � - -:; -=- - �� C-K MOD E LS (WIT H SIN G LE REA R WH E ELS ) C-K MOD ELS (WITH DUAL R EA R WH E E LS) Jacking I nstructions...
  • Page 71 Wheel N ut Torque CAUTION: Truck s .With Single Wheels: As soon as possible after instal ling a wheel- at the intervals shown on the chart in the Maintenance Schedule folder--have a meqhanic tighten wheel nuts with a torque wrench to the correct torque listed on the chart which follows.
  • Page 72 For both single and dual wheels, wheel nuts should be tightened alternately and evenly to the correct torque in the sequence shown below. Never use oil or grease on studs or nuts. Improperly tightened wheel nuts could eventually allow the wheel to come off while the truck is in motion, possibly causing loss of control.
  • Page 74 TIPS FOR TOWING FOUR WHEEL DRIVE VEHICLES FRONT WHEELS O F F THE GROUND ( 4 X 4) (4 X 4) FULL TIME PART TIME AUTOMATIC TRANSMISSION MANUAL TRANSMISSION TRANSFER CASE I N NEUTRAL TRANSFER CASE I N TRANSMISSION IN PARK TRANSMISSION I N NEUTRAL MAXIMUM SPEED MAXIMUM SPEED...

  • Page 75: Appearance Care

    SECT I O N 4 APPEARANCE CARE CAUTION: Many cleaners may be poisonous or flammable, and their improper use may cause personal injury or damage the inside of the vehicle. Therefore, when cleaning the inside of the vehicle, do not use volatile cleaning solvents such as: acetone, lacquer thinners.
  • Page 76 If a ring forms after spot cleaning, clean the entire area IMMEDIATELY. Follow specific instructions on cleaner labels. Cleaning General Soilage or Water Spots from Fabric Type Trim With Foam Type Cleaner GM Multi-Purpose Powdered Cleaner is excellent for this type cleaning, and for cleaning panel sections where small cleaning rings may be left from spot cleaning.
  • Page 77 • If a ring forms, immediately repeat the cleaning operation over a slightly larger area with emphasis on "FEATHERING" towards its center. If ring still remains, mark off surrounding trim sections and clean entire affected area with GM Multi-Purpose Powdered Cleaner (as described under "Cleaning General Soilage or Water Spots with Foam Type Cleaner").

  • Page 79: Corrosion Protection

    If you plan to store your vehicle over an extended · p eriod of time, certain steps should be' taken to give it maximum protection. It is recommended that you write the Chevrolet Motor Division, General Motors Corporation, Consumer Relations Dept., Detroit, Michigan...
  • Page 80 APPEARANCE CAR E AND MAI NTE NANCE MAT E R I ALS PART USAGE NUMB E R SIZE DESCRI PTION 1 050001 (0.473 Washer Solvent a nd Gas L i ne De-Icer Windshield wash i ng system and gas l i ne 1 05001 7 (0.946 Power Steeri ng F luid...

  • Page 81: Maintenance Schedule

    SECTION 5 SERVI CE AND MAINTE NANCE NOTICE: If you have the optional diesel engine, see also your Diesel Engine Supplement and your Diesel Maintenance Schedule folder for all intervals pertaining your diesel engine equipped truck. CAUTION: As with any machine, care should be taken when making any check, doin g any maintenance, or making any repair to avoid being injured.
  • Page 82 FUEL REQUIREMENTS (Gasoline Engines) (If your truck has a diesel engine, see your Diesel Engine Supplement.) Your gasoline engine Light Duty Emission Class Vehicle (see chart below) is designed to use gasoline. Unleaded only u nleaded gasoline must be used for proper emission control system operation. Its use will also minimize spark plug fouling and extend engine oil life.

  • Page 83: Catalytic Converter

    CATALYTIC CONVERTER (Gasoline Engines Only) The catalytic converter on your Light Duty Emission Class Vehicle (See Chart on previous page ) is an emission control device added to the exhaust system to reduce exhaust gas The converter contains a ceramic material coated with pollutants.

  • Page 84: Gasoline Engines

    G I N E O I L A N D FILTER RECO M M EN DATIO N S (Gasoline Engines) (If your truck has a diesel engine, see your Diesel Engine Supple­ ment.) • Use only SE-quality engine oils (see markings on containers). •...

  • Page 85: Engine Oil Additives

    line. Push the dipstick back down an the way after taking the reading. Add oil needed. • If you check the oil level when the oil is cold, do not run the engine first. The cold oil will not drain back to the pan fast enough to give a true oil level.

  • Page 86: Manual Transmission

    Add just enough DEXRON ® II fluid to fill the transmission. It takes only one pint (0.5 litre) to raise the level from "Add" to "Full" with a hot transmission. Do not overfill the transmission. Overfilling can cause foaming and loss of fluid, which could result in transmission damage.

  • Page 87: Coolant Replacement

    Cooling System Care It is not usually necessary to remove the radiator cap to check the coolant level. Lift the hood and look at the "see through" coolant recovery tank. This should done at regular intervals, such as during fuel stops. When the engine is cold, the coolant level should be at or slightly above the "Cold Level"...
  • Page 88 • Wait until the pressure is relieved (indicated by a hissing sound), then press down on the cap and continue to tum it to the left. CAUTION: To help avoid the danger of being burned, do not remove the radiator cap while the engine and radiator are still hot. Scalding fluid and steam can be blown out under pressure if the cap is taken off too soon.

  • Page 89: Power Steering System

    Radiator Pressure Cap The radiator cap, a 1 5 psi ( 105 kPa) pressure type, must be installed tightly, otherwise coolant may lost and damage to engine may result from overheating. Radiator pressure caps should be checked periodically for proper operation. If replacement is required, an AC-Delco cap is recommended.

  • Page 90: Air Cleaner Element

    If at operating temperature (approximately l SO"F (66.C)-hot to the touch), fluid should be between HOT and COLD marks. If at room temperature (approximately 70"F (21•q, fluid should be be between ADD and COLD marks. Fluid does not require periodic changing. *On some vehicles check fluid at remote reservoir only to make sure it is visible in reservoir at room temperature .

  • Page 92: Air Conditioning

    Air Conditioning Have your Dealer check your Air Conditioning system at some tim e during the winter months to be sure there has been no loss in cooling output. During the summer, see your Dealer immediately if you suspect the system is not performing as it should. The system will not operate below ambient temperatures of 40"F (4•C) regardless of control position.

  • Page 93: Front Axle

    Front Axle The front axle should be checked at the interval shown in the Maintenance Schedule and refilled with SAE SOW-90 GL-5 gear lubricant when necessary. With the differential at operating temperature, fill to the level of filler plug hole. If differential is· cold, fill to level of inch below the filler plug hole.
  • Page 94 I nflation Pressure The cold inflation pressures for your factory installed tires are listed on the Certification Label. Your tires must be inflated to these pressures to obtain the GVWR (Gross Vehicle Weight Rating) or G A WR (Gross Axle Weight Rating). Incorrect tire inflation pressures can have adverse effects on tire life and vehicle performance.
  • Page 95 TIRE LOAD MAX IMUM I NFLATION RANGE PRESSURE 32 psi t220 kPa) 36 psi (250 kPa) 40 psi (275 kPa) Standard (Metric tires) ( 35 k Pa psi ) Extra (Metric tires) k Pa ps i ) Ti re load range i s sta mped o n the tire. ( See 5- 1 9 i l l ustration o n page fo r location on tire sidewa l l .

  • Page 96: Inspection And Rotation

    PROPERL INFLATED IMPROPERL INFLATED PROPERLY INFLATED BIAS OR BIAS-BEL TED TIRE RADIAL TIRE Be sure to reinstall the tire inflation valve caps, if so equipped, to prevent dirt and moisture from getting into the valve core which could cause air leakage. If an air Joss occurs while driving, do not drive on the deflated tire more than is needed to stop safely.
  • Page 97 Case of Emergency " s ec tion, page 3-6 for further inf ormation. CAUTION: Before installing wheels. remove any build up of corrosion on the wheel mounting surface and brake drum or disc mounting surface by scraping and wire brushing. Installing wheels without good metal·to-metal contact at the mounting surfaces can cause the wheel nuts to loosen, which can later allow a wheel to come off while the vehicle is moving, possibly causing loss of control.

  • Page 98: Tire Replacement

    and construction type (bias, bias-belted, or radial) as your other tires. Snow tires should be inflated above the advised cold inflation pressures for the load being carried (see "Inflation Pressure" in this section for specific instructions). Vehicle speed should be limited to mph (120 km/h) when equipped with passenger-car-type snow tires or mph ( 100 km/h) with truck...

  • Page 99: Wheel Replacement

    LOAD RANGE Sill -HR71- 1 5 TREAD WEAR INDICA TORS lOAD lANGE CONSTRUCTUON -Steel Belled Racliol - 1 00 1 TPC SPIC.NO. Your tire tread or sidewall is cracked, cut, or snagged deep enough to expose the cord or fabric. Your tire has a bump, bulge, or split.

  • Page 101: Air Cleaner

    Excessive Idling An idling engine uses fuel, too. If you're faced with more than a minute wait, and you're not in traffic, it may be better to "turn otr' and start again later. Sudden Stops Sudden stops can also waste fuel; instead of moving the vehicle, the energy of fuel is wasted as heat in braking.
  • Page 102 WHEEL USAGE AND TIRE LOAD LIMITS AT VARIOUS INF LATION PRESSURES* PASSENGER TYPE TIRES FOR LIGHT TRUCKS USED IN HIGHWAY SERVICE (PSI) Wheel Code Tire Load Limits at V rious Inflation Pressures Tire Load Regular Rally/Spoke Size Range CC, CB CF, BU GR78- 1 5 1 363...
  • Page 103 WHEEL USAGE AND TI RE LOAD LI M ITS AT VARIOUS I N FLATION PRESSURES* TIRES FOR LIGHT TRUCKS USED IN HIGHWAY SERVICE TIRES USED AS SINGLES (PSI) Wheel Code Tire Load Tire Load Limits at Various Inflation Prenures Regular Rally Size Range...
  • Page 104 WHEEL USAGE AND TIRE LOAD LIM ITS AT VARIOUS I N F LATION PRESSURES* TIRES FOR LIGHT TRUCKS USED I N HIGHWAY SERVICE (Cont'd.) WIDE BASE TUBELESS TIRES USED AS SINGLES (PSI) Wheel Code Tire Load Limits at Various Inflation Pressures Tire Load Regular...
  • Page 105 WHEEL USAGE AND TIRE LOAD LIMITS AT VARIOUS I N FLATION PRESSURES* TIRES FOR LIGHT TRUCKS USED I N HIGHWAY SERVICE TIRES USED AS DUALS (PSI) Wheel Code Load nre Load Limits et Various Inflation Pressures Regular Reily Size Range TUBE TYPE TIRES MOUNTED ON 5•...
  • Page 106 WHEEL USAGE AND TIRE LOAD LI MITS AT VARIOUS INFLATION PRESSU RES* TIRES FOR LIGHT TRUCKS USED IN HIGHWAY SERVICE (Cont'd.) WIDE BASE TUBELESS TIRES USED AS DUALS (PSI) Wheel Code Tire Load Tire Load Limits at Various Inflation Pressures Regular Rally Size...

  • Page 107: Owner Assistance

    Your purchase o( a Chevrolet product is greatly apprectated by both y our dealer and Chevrolet. We want to help you in any way we can to make sure you are completely satisfied with your vehicle.
  • Page 111 Zone Office. After completing this form, mail it to: OFFICE OF CON­ SUMER RELATIONS, CHEVROLET MOTOR DIVISION. Make sur e you address it to the Zone Office closest to you. (See Zone Office addresses on pre.vious pages.) �...

  • Page 113: General Data

    Fremont P Forward Control Oshawc1 J Jonesville GMAD Detro1t leeds DIVISION MODEL YEAR C Chevrolet V GM Truck- 9� 1979 Pontiac T GMT C C l 2 4 5 3 2 7 . 8 9 F 1 ENGINE I NOENTI FICATION...
  • Page 114 SERVICE PARTS IDENTIFICATION PLATE The Truck Service Parts Identification Plate is provided on all Truck models. On most series it will be located on the inside of the glove box door, on P series it will be located on an inner body panel. The plate lists the V.I.N., (vehicle identification number), wheelbase, paint information and all Production options or Special Equipment on the vehicle when it was shipped from the factory.

  • Page 115: Manual Transmissions

    FOUR WHEEL DRIVE (Qts.) Lubricant Capacities u.s . Imperial Component Measure Measure Front Axle 2; 5 Transfer Case-conventional -Full Time Power Take-Off 'Iii AUTOMATI C TRANSMISSIONS Lubricant Capacities (Qts.) u.s. Imperial Transmlnlon Measure Measure Turbo Hydra-Matic Total 9 '1 • - Refill 8v .

  • Page 116: Cooling System

    COOLING SYSTEM H.D. (Ob.) Transmission Ca111 c ity R1dJitor Con d. u.s. lmperilt Series ..,. Moo. Engine Moo. Auto Moo. Auto Auto 1 2 % C , K l 0 - 1 5 250 C I D 1 5Y , c 20·25 1 2Y , 1 5 %...
  • Page 117 FUSES-CIRCUIT BREAKERS The wiring circuits are protected from short circuits by a combina" tion of fu�s. circuit breakers, and fusible thermal links in the wiring itself. This greatly reduces the hazard ofelectrically caused fires in the vehicles. The headlamp wiring is p rotected by a circuit breaker in the light switch.

  • Page 118: Circuit Breakers

    Fuse Rat'ing C-K Models Heater, Front A/C, Generator Warning Lamp, Heavy Duty Heater ......20 Amp _ _ _ _ .
  • Page 119 LAMP BULB DATA type Guide Lamps are recommended, when replacement becomes necessary. Candle Lamp Usage Quantity Trade # Power Dome lamps: 1 004 & Utility Suburban 21 1 -2 Oil pressure indicator lamp Generator indicator lamp' 1 68 Instrument cluster lamps2 1 68 Headlamp beam indicator lamp &...
  • Page 121 OPER A TI N G RE C ORD D A T E GASOL I N E REPAI RS M I L EAG E O I L...
  • Page 122 OPER A TI N G RE C ORD D A T E GASOL I N E REPAI RS M I L EAG E O I L...
  • Page 123 OPER A TI N G RE C ORD D A T E GASOL I N E REPAI RS M I L EAG E O I L...
  • Page 124 OPER A TI N G RE C ORD D A T E GASOL I N E REPAI RS M I L EAG E O I L...
  • Page 125 OPER A TI N G RE C ORD D A T E GASOL I N E REPAI RS M I L EAG E O I L...
  • Page 126 Spot Removal .......... 4-2 INDEX Clock, Electric.......... . 2-25 Clutch Pedal ........... 2-17 Accelerator Linkage ........ 5-t 1 Clutch Adjustment........Accessory Position, Steering Cold Weather Starting....... Column Lock..........Complaint Procedure......... Air Cleaner ..........5-10 Controls, S1eering Column ....... Air Conditioning Converter, Catalytic ........
  • Page 127 Tra nsm 1ss1 on ....Sidemarker ..............5-5 Windshield Washer........ 2-23 Switch ............2-25 Foreign Countries, Operation ln ... Tail and Brake .......... 1-21 Four Wheel Drive Turn Signal Indicator......Front Axle ..........
  • Page 128 Snow ............Seat 5- 1 5 Spare Caution Adjustment, Manual ............3-8 ....•..Back Latch, Front Seat ......Tire Cheins ..........5-18 .1-4 Traction ............ Back Latch, Folding Front ..... 5-17 Bench ............Tread Wear Indicators ......5-19 Bucket...
  • Page 130 Street Address Apt. No. Code State City, • This Is your shipping label PINse print clearly FROM • • • CHEVROLET MANUAL HELM, Incorporated DISTRIBUTION DEPARTMENT 48207 DETROIT, MICHij3AN Post Office Box 07130 Return Requested lr!l&t Address Apt. No. City,...

  • Page 131: Service Station Information

    SERVICE STATION IN FORMATION Refer to "Service and Mai ntena nce" Section for Further Details F o r l ocat i o n o f t h e gas cap refer t o Sect ion 7 Fuel C a p u n d e r F U E L TANK DATA.

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