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1986 C-K
Service manual
GMC 1986 C-K Service Manual
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Contents
Table of Contents
Bookmarks
Table of Contents
General Information
Maintenance and L U B Ric a Tio N
Table of Contents
Oa-2 General Information
Service Parts Identification Label
Vehicle Identification P la te
Certification Label
Model Reference
Engine Identification Number
Graphic Symbols
Metric Fasteners
Fastener Strength Identification
Prevailing Torque Fasteners
Six Lobed Socket Head Fasteners
RPO Listing (Regular Production O P Tio N
Maintenance and Lubrication
Heating and Air Conditioning
H E a Tin
C-K and G Series Heaters - General Description
Blower and Air Inlet Assembly
Heater Distributor Assembly
Insufficient Heat Diagnosis
Healer C Ircuit D Ia G N O S Is
Diagnosis of Heater System
C-K Series Heater - On-Vehicle Service
Blower Motor Replacement
Heater Hoses - Engine R O U Tin G
Heater Distributor and Core Assembly
Control Assembly Replacement
Control Cables Replacem Ent
Cable Adjustment
Blower Switch Replacement
Resistor R E P la Ce M E N
C-K Series Auxiliary Heater
General D E S C Rip Tio
Ccot System Components, Temperature and Pressure Relationships
Handling Refrigerant-12
Refrigerant-12 Operating Characteristics
Handling Refrigerant Lines and F Itt in G S
Maintaining Chemical Stability
Diagnosis
Testing the Refrigerant System
Leak Testing the Refrigerant System
Pressure Sensing Switch
Electrical/Vacuum Trouble D Ia G N O S
Operational T E S
Vacuum System Diagnosis
C-K and G S E R Ie
A/C Refrigerant System Diagnosis
Insufficient Cooling " Quick Check" P Ro C E D U
A/C Evacuating and Charging P Ro C E D U Re
Evacuation and Charging P Ro C E D U Re
Discharging, Evacuating, Adding Oil, and Charging Procedures Fo R CCOT A/C S y S te
Discharging the CCOT A/C S y S te
CCOT Refrigerant Oil D Is Trib U Tio
Evacuating and Charging the CCOT A/C S y S te
Gage C a Lib Ra Tio
Vacuum System C H E C
Charging Station M E Tho
Disposable Can or Multi-Can M E Th O
Refrigerant Drum M E Th O
Charging of the Ccot A/C System
Accum Ulator a S S E M B
Specific Component Diagnosis
Compressor
Condenser
Receiver-Dehydrator (Motor Home Chassis)
Expansion Valve
Evaporator
Refrigerant Line R E S Tric Tio N
Sight Glass Diagnosis (Motor Home Chassis Units)
On Vehicle Service
Compressor Replacement (C
Compressor Replacement (G and Motor Homes Chassis M O D E
Compressor Belt Tension Adjustm Ent (G and Motor Home Chassis M O D E
CCOT A/C System-C-K S E R Ie
Condenser R E P la Ce M E N
Accumulator Replacement
Blower Assembly Replacement
Evaporator Core R E P la C E M E N
O Rifice (Expansion Tube) R E P Lace M E N
Selector Duct and Heater Core R E P la Ce M E N
Actuator-Plenum Side Vent R E P Lace M E N
Plenum Valve Replacement
Control Assem Bly R E P la Ce M E N
Cable a D Ju Stm E N
Temperature Door Cable a Djustm E N
Blower Switch R E P Lace M E N
Vacuum Tank Replacement
Vacuum Lines-Engine C O M P a Rtm E N
Vacuum Harness-Dash
Blower Motor Resistor R E P la Ce M E N
Blower Motor Relay Replacement
Fuse R E P la Ce M E N
Rear Interior Roof Mounted System-Suburban
Rear Duct Replacement
Blower Motor Resistor R E P la Ce M E N
Blower Motor Assembly Replacement
Expansion Valve R E P la Ce M E N
Evaporator Core R E P la C E M E N
Blower Motor Switch Replacement
Fuse R E P la Ce M E N
CCOT A/C System-G S E Rie
Condenser R E P Lace M E N
Accumulator Replacement
Heater Core R E P la Ce M E N
O Rifice (Expansion Tube) R E P Lace M E N
Blower Motor Insulation (W/Diesel) Replacement
Evaporator Core (W/Diesel) R E P la C E M E N
Evaporator Core R E P la C E M E N
Blower Motor Replacement
Liter
Control Assembly R E P la Ce M E N
Temperature Door Cable a Djustm E N
Blower Switch R E P Lace M E N
Resistor R E P la C E M E N
Blower Motor Relay Replacement
A/C Ductwork Replacem Ent
Defroster Duct Replacement
Temperature Door Cable R E P la Ce M E N
Liter
Vacuum Tank Replacem Ent
Vacuum Line Engine C O M P a Rtm E N
Liter
Liter
Rear Interior Roof Mounted Systems-G S Eries
Liter
CCOT A/C System-P S E R Ie
Dash Mounted System-Motor Home C H a S S
Condensor R E P Lacem Ent
Liter
Receiver-Dehydrator Replacement
Sight Glass Replacement
Blower-Evaporator Assembly R E P la C E M E N
Blower Assembly Replacement
Expansion Valve, Evaporator And/Or Evaporator Case Replacement
Thermostatic And/Or Blower Switches Replacement
Blower Motor Resistor R E P la Ce M E N
Fuse R E P Lace M E N
S Pecifica Tio
Displacement
D Iagnosis
F Ra M
Frame
Minim Izing Frame S E Rv IC
Checking Frame a Lig N M E N
Straightening Fram
Repairing C Ra C K
W E Ld in
G Model Underbody
D E S C Rip Tio
Underbody a Lig N M E N
Rear Bumper Replacement (Utility Vehicle and Suburban)
Rear Bumper Replacement (Regular Cab, Bonus Cab, and Crew Cab)
Rear Step Bumper Replacement
Rear Bumper License Plate Bracket Replacement
Dead Weight Trailer Hitch Replacement (Utility Vehicle and Suburban)
Weight D Istribution Hitch Replacement (Suburban O N
Weight Distribution Hitch Replacement (Utility Vehicle Only)
P Model Bumpers
Front Bumper Replacement
Front Bumper Replacement (with RPO FS3 Front a X
Front Bumper Replacement
Rear Bumper Replacement
Rear License Plate Bracket R E P Lace M E N
Dead Weight Trailer Hitch R E P Lace M E N
Weight Distribution Hitch Replacement
C/K Models
Hood Replacement
Spring Assembly Replacement
Hood Hinge Replacement
Primary Hood Latch Replacement
Secondary Hood Latch and Spring Replacement
Hood Release Cable Replacement
Hood Ornament Replacement
Cowl Vent Grille Replacement
Grille and Molding Replacement
Front Fender Replacement
Wheelhouse Panel Replacement
Rear Fender Replacement
Radiator Support Replacement
Sheet Metal Unit R E P la Ce M E N
Sheet Metal a Djustm E N
G Models
Hood Replacement
Hood Hinge R E P la Ce M E N
Primary Hood Latch R E P la Ce M E N
Secondary Hood Latch and Spring Replacement
Hood Release Cable R E P Lace M E N
Cowl Vent Grille Replacement
Grille Replacement
Front End Sheet Metal Cross Panel R E P la C E M E N
Sheet Metal Vertical Support Replacement
Front End Panel Replacement
Diagnosis of Steering Linkage
On-Vehicle Service
Idler Arm Inspection
Idler Arm Adjustment (P30(32) Motorhome)
Idler Arm Replacement
Relay Rod Replacement
Pitman Arm Replacement
Steering Shock Absorber Inspection
Steering Shock Absorber Replacement
Tie Rod Replacement (C, G, P20 and 30(42) Models)
Tie Rod Replacement (K and P30(00)Fs3 Models)
Connecting Rod Replacement (K and P30(00)FS3 M O D E Ls)
Connecting Rod Replacement (P30(32) Motorhome)
Specifications
Special Tools
Description
Diagnosis of Manual Steering System
On-Vehicle Service
Maintenance
Steering Gear Replacement
Overhaul
Pitman Shaft Seal Replacement
Overhaul
Steering Gear Adjustments
Steering Gear High Point Centering
Specifications
Special Tools
Description
Integral Power Steering Gear
Hydraulic Pumps
Diagnosis of Power Steering System
Oil Leak Check
Power Steering System Test
Power Steering System On-Vehicle Service
Maintenance
Pump Belt Tension Adjustment
Fluid Level Adjustment
Bleeding the Power Steering System
Flushing the Power Steering System
Steering Gear High Point Centering
Power Steering Gear Replacement
Pitman Shaft Seal Replacement
Steering Gear Adjustments
Power Steering Pump Replacement
Liter
Liter
Liter
Liter
Power Steering Hoses
Liter
Liter
Liter
Specifications
Special Tools
Description
Diagnosis of the Steering Column
Steering Column Electrical Component Analyzer
Steering Column On-Vehicle Service (All M O D E Ls)
Inspection
Steering Wheel Replacement
Flexible Coupling Replacement
Intermediate Shaft Replacement
Steering Column On-Vehicle Service (C, K and G M Odels)
Ck Model Steering Column Replacement
G Model Steering Column Replacement
Turn Signal Switch Replacement
Lock Cylinder Replacement
Tone Alarm Switch Replacement
Ignition Switch Replacement
Standard Steering Column Unit Repair (C, K and G M O D E Ls )
Standard Steering Column Lower Bearing Adjustment
Tilt Steering Column Unit Repair (C, K and G M O D E Ls)
Steering Column On-Vehicle Service P(32) Models
Turn Signal Switch Replacement
Tilt Steering Column Replacement
Tilt Steering Column Bearing Housing Replacement
Tilt Steering Column Unit Repair P(32) Models
Steering Column On-Vehicle Service P(42) Models
Standard Steering Column Replacement
Upper Bearing Replacement
Lower Bearing Replacement
Steering Column Lower Bearing Adjustment
Shift Tube Adjustment
Standard Steering Column Unit Repair P(42) Models
Intermediate Shaft Unit Repair P(42) Models
Specifications
Special Tools
Front Suspension
General Description
Diagnosis of Front Suspension
Diagnosis of Wheel Bearings
On-Vehicle Service: Two Wheel Drive Independent Front Suspension
Shock Absorber
Stabilizer Bar
Wheel Hub/Rotor Assembly
Upper Ball J O in
Lower Control Arm Pivot Shaft and Bushings
Upper Control Arm Pivot Shaft and Bushings
Lower Control a
On-Vehicle Service: Two Wheel Drive RPO FS3 (I-Beam) Front S U S P E N S Io
Shock a B S O Rb E
Wheel Hub/Rotor Assembly
Steering Arm, Knuckle and S P in D
Front Axle
Leaf S P Rin
Shock a B S O Rb E
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Chapters
Section 0 General Information
6
___________________________________________________________________ Ob-1 Section Ob Maintenance and Lubrication
22
Section 1A Heating
40
1B-1 Section 1B Air Conditioning
64
2A-1 Section 2 Frame and Chassis Sheet Metal
133
Bumpers 2B-1 Section 2B Bumpers
140
2C-1 Section 2C Sheet Metal
157
Steering Linkage 3B1-1 Section 3B1 Steering Linkage
185
3B2-1 Section 3B2 Manual Steering Gear
200
3B3-1 Section 3B3 Power Steering
207
3B4-1 Section 3B4 Steering Column
240
3C-1 Section 3C Front Suspension
287
3E-1 Section 3E Wheels and Tires
358
4A-1 Section 4A Propeller Shaft
374
4B-1 Section 4B Rear Axle
386
5-1 Section 5 Brakes
421
Table of Contents
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