Additional Required Services
The following services should be performed at the rst maintenance service (IorII) after the indicated
miles (kilometers) shown for each item.
Additional Required Services
Service and Miles (Kilometers)25,000
(40 000)50,000
(80 000)75,000
(120 000)100,000
(160 000)125,000
(200 000)150,000
(240 000)
Inspect fuel system for damage or leaks.• •••••
Inspect exhaust system for loose or
damaged components.• •••••
Replace engine air cleaner lter. See
Engine Air Cleaner/Filter on page 5-24.•••
Change automatic transmission uid and
lter (severe service).See footnotes (g)
and (h).•••
Change automatic transmission uid and
lter (normal service).See footnote (g).•
Automatic transfer case only: Change
transfer case uid.See footnote (g).•••
Replace spark plugs.An Emission
Control Service.•
V8 engine only: Inspect spark plug wires.
An Emission Control Service.•
6-6
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Maintenance Replacement Parts
Replacement parts identi ed below by name, part number, or speci cation can be obtained from your dealer.
Part Part Number ACDelco Part Number
Automatic Transmission Filter Kit 24208576 24208576
Engine Air Cleaner/Filter 15036141 A2014C
Engine Oil Filter
4.2L L6 89017342 PF61
5.3L V8; 6.0L V8 89017524 PF48
Spark Plugs
4.2L L6 12598004 41-103
5.3L V8; 6.0L V8 12609877 41-985
Wiper Blades
Front – 22 in (56 cm) 12368668 —
Rear – 13 in (33 cm) 15232655 —
6-14
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