spark plugs replace CHEVROLET AVALANCHE 2009 2.G Owners Manual
Page 505 of 550
Additional Required Services (cont’d)
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)
Replace spark plugs and inspect spark
plug wires.An Emission Control
Service.•
Engine cooling system service
(or every ve years, whichever occurs
rst).An Emission Control Service. See
footnote (i).•
Inspect engine accessory drive belt.An
Emission Control Service.
See footnote (m).•
6-7