Chevrolet Silverado 2004 Owner's Manual page 539

Service and Miles (Kilometers)
Except Allison: Change automatic
transmission fluid and filter (severe
service). See footnote (h).
Except Allison: Change automatic
transmission fluid and filter
(normal service).
Four-wheel drive with automatic
transfer case only: Change transfer
case fluid. See footnote (g).
Inspect evaporative control system. An
Emission Control Service. See
footnotes † and (k).
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.
Additional Required Services (cont'd)
25,000
(41 500) (83 000)
50,000 75,000
(125 000) (166 000)
•
•
•
100,000 125,000
(207 500)
•
•
•
•
•
150,000
(240 000)
•
•
•
•
•
•
6-7