GMC 2004 Sierra - Manual (Page 544)

Additional Required Services (cont’d)
Service
25,000
(41 500)
50,000
(83 000)
75,000
(125 000)
100,000
(166 000)
125,000
(207 500)
150,000
(240 000)
Replace spark plugs and inspect
spark plug wires.
An Emission
Control Service.
•
Engine cooling system service
(or every 5 years, whichever occurs
first).
An Emission Control Service.
See footnote (i).
•
Inspect engine accessory drive belt.
An Emission Control Service.
•
5-speed manual transmission only:
Change manual transmission fluid.
•
Maintenance Footnotes
† The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to
the completion of the vehicle’s useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the
maintenance be recorded.
# Lubricate the front suspension, ball joints, steering
linkage, transmission shift linkage and parking
brake cable guides. Ball joints should not be lubricated
unless their temperature is 10°F (-12°C) or higher,
or they could be damaged.
(a) Visually inspect brake lines and hoses for proper
hook-up, binding, leaks, cracks, chafing, etc. Inspect
disc brake pads for wear and rotors for surface
condition. Inspect other brake parts, including calipers,
parking brake, etc.
6-8