'05 GMC Sierra 1500 Z71...recommended mileage for plug/wires?
lefty1120
04-19-2009, 06:31 PM
What the recommended mileage for spark plug and wire replacement?
'05 GMC 5.3L
'05 GMC 5.3L
16th hippy
05-26-2009, 03:28 PM
100,000 miles. they hav platinum plugs. you can do it sooner, but service manual says 100k.
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