GMC 1996 Sonoma Owner's Manual page 322

I
Short TripKity Maintenance Schedule
1
99,000 Miles (165 000 km)
0
Change engine oil and filter (or every
3 months, whichever occurs first).
An Emission Control Service.
17
Lubricate the front suspension, ball joints,
steering linkage and transfer case shift
linkage, parking brake cable guides,
propshaft splines, universal joints, brake
pedal springs and clutch pedal springs at
every oil change (or every 3 months,
whichever occurs first).
Check readfront axle fluid level and add
fluid as needed. Check constant velocity
joints and axle seals for leaking?
DATE ACTUAL MILEAGE SERVICED B Y
100,000 Miles (166 000 km)
0
Drain, flush and refill cooling system
(or every 60 months since last service,
whichever occurs first). See "Engine
Coolant" in the Index for what to use.
Inspect hoses. Clean radiator, condenser,
pressure cap and neck. Pressure test cooling
system and pressure cap.
0
Inspect spark plug wires.
0
Replace spark plugs.
An Emission Control Service.?
An Emission Control Service.
An Emission Control Service.
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