GMC 1996 Sierra Owner's Manual page 366

Long Tripmighway Maintenance Schedule
--
Gasoline Engines
I
90,000 Miles (150 000 km) (Continued)
0
Vehicles With GVWR Above 8,500 lbs.
Only: Inspect shields and underhood
insulation for damage or looseness. Adjust
or
replace as required.
This is
( I
Noise
Emission
Control Service. Applicable only to vehicles sold
if1
the United States.
0
If
your engine has a thermostatically
controlled cooling fan, inspect all hoses
and ducts for proper hook-up (or every
12 months, whichever occurs first). Be sure
the valve works properly.
This is
a
Noise
Emission Control Service. Appliccdde only to
vehicles sold i n the United States.
I
DATE
I
ACTUAL MILEAGE
ISERVICED B Y
I
97,500 Miles (162 500 km)
0
Change engine oil and filter (or every
12 months, whichever occurs first).
An Eulission Control Service.
0
Lubricate chassis components; see footnote
#
(or every 12 months, whichever occurs first).
0
Check readfront axle fluid level and add fluid
as needed. Check constant velocity joints and
axle seals for leaking.
**
0
Rotate tires. See "Tire Inspection and Rotation"
in the Index for proper rotation pattern and
additional information. During tire rotation,
check brake calipers for freedom of movement.
Refer to the appropriate GM service manual for
ProDer c a b e r service Procedures.
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