1
Long
Trip/Highway Maintenance Schedule
30,000
Miles
(50
000
km)
(Continued)
c]
Check engine idle speed and adjust
it
to
underhood label specifications.
An
Emission Control Service.?
0
Inspect propeller shafts and u-joints for
looseness and damage (or every
15
months,
whichever occurs first). Inspect more
frequently if used off-road or for pulling
a trailer. Tighten u-joint flange bolts
if
necessary.
37,500
Miles
(62
500
km)
0
Change engine oil and filter (or every
7.5
months, whichever occurs first).
An
Emission Control Service.
17
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 proper
caliper service procedures.
0
Inspect the locking front
hubs
(if
equipped)
for correct operation
(or
every
3
months,
whichever occurs first). Repair
or
replace
if necessarv.
I
DATE
I
ACTUAL
MILEAGE
(SERVICED
BY:(
7-36