Service Operation Descriptions; Section C: Fuel System; Section E: Cooling System; Section F: Automatic - Winnebago 1987-1989 LeSharo Service Manual

SERVICE OPERATION DESCRIPTIONS
NOTE: Your need for service is determined by a
mileage or time interval. In most cases,
the odometer mileage will indicate when
service is required. However, if you drive
very little, your vehicle should be serviced
at least every twelve months. Under
severe driving conditions, such as driving
in dusty areas, extensive engine idling,
towing a trailer or repeated short trips of
5 miles or less in freezing temperature,
more frequent maintenance is
recommended.
1. Engine Oil - Change engine oil during the
1000 mile maintenance check, and at each
required service interval thereafter. Check oil
at each fuel fill.*
NOTE: If you use your vehicle under unusual
driving conditions, such as driving in dusty
areas, extensive engine idling, towing a
trailer, or repeated short trips of 5 miles or
less in freezing temperatures, then change
your oil every 3 months or 3000 miles.
2. Engine Oil Filter - Change engine oil filter
during the 1000 mile maintenance check and,
thereafter, at listed intervals. Use only
Winnebago approved filter.*
3. Automatic Transmission Fluid - Change the
automotive transaxle fluid and clean filters at
the 1000 mile maintenance check and at
specified intervals thereafter. *t
4. Man u a I T ran sm i ssion
0
i I Ch a n g e -
Transmission oil must be changed during the
1000 mile maintenance service and at each
prescribed interval thereafter. The drain plug
crush washer must be replaced at each oil
change. Be sure to thoroughly inspect for
leaks around gaskets and drain plugs after an
oil change.
5. Differential Oil - Change final drive oil during
the 1000 mile maintenance check and,
thereafter, at intervals listed.t Check level at
each engine oil change.*
6. Clutch Check and Adjustment - Check
operation clearance and adjust, if necessary,
during the 1,000 mile maintenance service
and at prescribed intervals thereafter.
7. Idle Speed (Qualified Technician Required) -
Check and adjust the curb/fast idle at the
1,000 mile maintenance check and at
specified intervals thereafter.
8. Air Filter - Replace air cleaner element at
30,000 miles.t Use only Winnebago approved
air filter.*
9. Spark Plugs - Replace the spark plugs at
30,000 miles.t See Engine Specifications for
recommended spark plugs.
10. Drive Belts (Qualified Technician Required) -
Inspect condition and tension of belts driving
the water pump, alternator and air
conditioner compressor at the 1,000 mile
maintenance check and at specified intervals
thereafter.
11. Hosesand Connections - At each 15,000 mile
interval, check the condition of hoses,
connections and fittings of the following
systems. Tighten connections, if necessary.
• Cooling System
• Brake system
• Fuel system
• Power steeri ng
• Vacuum system (emissions related)
12. Oxygen Sensor - At 50,000 miles, check sensor
operation and replace if necessary.
13. Valve Lash - Adjust valve lash as required at
each 30,000 mile interval.
14. PCVSystem - Check operation and replace, if
necessary, at 50,000 miles.
15. Fuel Filter - (Qualified Technician Required) -
Replace fuel filter at each 20,000 mile
maintenance interval. Inspect fuel lines and
tank for leakage and connections for
tightness. Inspect fuel system electrical
connections. Check filler cap for proper
venting.
16. Exhaust System - At each 15,000 mile
maintenance interval, inspect condition of all
exhaust system components for leakage,
damage, clearance and mounting. Replace
components as necessary.
17. Ignition System (Qualified Technician
Required) - Inspect distributor cap, rotor and
ignition wiring and check timing.
18. Fluid Checks - During the 1,000 mile
maintenance check, and at subsequent
maintenance interval, check the level of
fluids listed and add or replace as
necessary. * t
• transmission fluid
• differential oil
• brake fluid
• power steering fluid
• coolant
• windshield washer solvent
19. Cooling System - Drain and replace coolant at
30,000 miles and at the beginning of each
winter season thereafter. Check hoses and
connections for leakage or flaws. Use only
Prestone II~ brand or equivalent
anti-freeze/coolant when replacing or
adding.