spark plugs replace GMC ENVOY XL 2004 Owners Manual

Additional Required Services (cont’d)
Service and Miles (Kilometers)25,000
(41 500)50,000
(83 000)75,000
(125 000)100,000
(166 000)125,000
(207 500)150,000
(240 000)
Change automatic transmission
uid and lter (normal service).•
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.•
Engine cooling system service
(or every 5 years, whichever occurs
rst).An Emission Control Service.
See footnote (i).•
Inspect engine accessory drive belt.
An Emission Control Service.•
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Normal Maintenance Replacement Parts
Replacement parts identied below by name, part number, or specication can be obtained from your dealer.
Part GM Part Number ACDelco®Part Number
Engine Oil Filter
L6 89017342 PF61
V8 25010633 PF44
Engine Air Cleaner/Filter 15036141 A2014C
Automatic Transmission Filter Kit 24200796 —
Spark Plugs
L6 25337472 41-981
V8 12571164 41–985
Fuel Filter 88983068 GF831
Windshield Wiper Blade (Performance Blade 22”) — 8–2221
Backglass Wiper Blade (Performance Blade 16”) — 8–2161
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