spark plugs replace GMC YUKON 2003 Owner's Manual

Normal Maintenance Replacement Parts
Replacement part numbers listed in this section are based on the latest information available at the time of printing,
and are subject to change. If a part listed in this manual is not the same as the part used in your vehicle when it
was built, or if you have any questions, please contact your GM dealer.
These specifications are for information only. If you have any questions, see the service manual for the chassis or
refer to the body manufacturer’s publications.
Normal Maintenance Replacement Parts
VIN Code V T Z U G
Oil Filter* PF44 PF44 PF44 PF44 PF454
Engine Air
Cleaner /Filter*A1519C†A1519C†A1519C†A1518C A1518C
Passenger
Compartment Air
Filter Kit**52485513 52485513 52485513 52485513 52485513
PCV Valve* CV2001–C CV2001–C CV2001–C CV2001–C—
Spark Plugs††41–974*
/PZTR5A15††41–974*
/PZTR5A15††41–974*
/PZTR5A15††41–974*
/PZTR5A15††41–983*
Fuel Filter* GF626 GF626 GF626 GF626 GF626
Wiper Blades
(Front)**15153642 15153642 15153642 15153642 15153642
5-109
2003 - Yukon/Yukon XL

97,500 Miles (162 500 km)
❑Check rear/front axleuid level and adduid as
needed. Check constant velocity joints and axle seals
for leaking.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-61for proper rotation pattern and additional
information.(See footnote +.)
100,000 Miles (166 000 km)
❑Inspect spark plug wires.An Emission Control
Service.
❑Replace spark plugs.An Emission Control Service.
❑Change automatic transmissionuid andlter if
the vehicle’s GVWR is over 8,600 lbs or if the vehicle
is mainly driven under one or more of these
conditions:
In heavy city traffic where the outside
temperature regularly reaches 90°F (32°C) or
higher.
In hilly or mountainous terrain.When doing frequent trailer towing.
Uses such as found in taxi, police or delivery
service.
❑If you haven’t used your vehicle under severe service
conditions listed previously and, therefore, haven’t
changed your automatic transmissionuid, change
both theuid andlter.
❑Change transfer caseuid.
❑Except 8.1L V8 Engine: Inspect Positive Crankcase
Ventilation (PCV) valve.An Emission Control
Service.
150,000 Miles (240 000 km)
❑Drain,ush and rell cooling system (or every
60 months since last service, whichever occursrst).
SeeEngine Coolant on page 5-26for what to use.
Inspect hoses. Clean radiator, condenser, pressure
cap and neck. Pressure test the cooling system
and pressure cap.An Emission Control Service.
❑Inspect engine accessory drive belt.An Emission
Control Service.
6-10
2003 - Yukon/Yukon XL