GMC 1994 Yukon Owner's Manual page 358

Lap and Shoulder Belts Condition and Operation
-
Inspect belt system,
including webbing, buckles, latch plates, retractors, guide loops and
anchors. Have a belt assembly replaced if the webbing has been cut or
otherwise damaged.
Body Lubrication Service
-
Lubricate all body door hinges with engine
oil. Also lubricate the tailgate, tailgate handle pivot points, and tailgate
mounted spare tire carrier (if equipped). Lubricate the body hood, fuel door
and rear compartment hinges, latches and locks including interior glove box
and console doors, and any folding seat hardware. Lubricate the hood safety
lever pivot and prop rod pivot. More frequent lubrication may be required
when exposed
to
a corrosive environment.
Periodic Maintenance Inspections
-
Listed below are inspections and
services which should be performed at least twice a year (for instance each
spring or fall). You should let your GM dealer's service department or other
qualified service center do these jobs. Make sure any necessary repairs are
completed at once.
Steering and Suspension Inspection*f
-
Inspect front and rear suspension
and steering system for damaged, loose or missing parts, signs of wear or
lack of lubrication. Inspect power steering lines and hoses for proper
hook-up, binding, leaks, cracks, chafing, etc. Lubricate the steering linkage.
Accelerator Control System
-
On gasoline engines, lubricate the pivot at
the TBI throttle lever stud with engine oil. Do not oil any accelerator or
cruise control cables. Replace any cables that have high effort or excessive
wear.
Exhaust System Inspection
-
Inspect the complete system including the
three-way catalytic converter. Inspect the body near the exhaust system.
Look for broken, damaged, missing or out-of-position parts, as well as,
open seams, holes, loose connections or other conditions which could cause
a heat buildup in the floor pan or could let exhaust fumes seep into the
passenger compartments.
Drive Axle Service?
-
Check rearm-ont axle fluid level and add as needed.
Check constant velocity joints and axle seals for leaking.
Transfer Case (Four-wheel Drive) Inspection?
-
Every 12 months or at
oil change intervals, check front axle and transfer case and add lubricant
when necessary. Oil the control lever pivot point and all exposed control
linkage. Check vent hose at transfer case for kinks and proper installation.
More frequent lubrication may be required on heavy-duty or off-road use.
?A fluid loss in these systems may indicate a problem. Have them inspected
and repaired at once.
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