CHEVY

2003 Chevrolet Avalanche

Tiny

lnghair7

February, 23, 2010 AT 3:00 AM

Engine Performance problem
2003 Chevy Avalanche V8 Four Wheel Drive Automatic 139, 00 miles

How often do you change the spark plug wires on an Avalanche?

FOUND 4125 RELATED QUESTIONS

1 Answer

Tiny

Jacobandnickolas

July, 18, 2010 AT 11:46 PM

I believe the manufacturer says the OEM ones are good for 100K. However, that usually isn't the case. I would recommend aprox every 50K. If you still have the owner's manual, check it for their recommendations too.

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