what is the spark plug gap for 2005 gmc envoy 4.2l v6
The gap on spark plugs is .042.
Remove the spark plug wires from each spark plug. Turn the spark plug out with a 5/8 deep well socket. Reverse the process to install the new spark plugs.
ACDelco 41-103 Iridium
the gap should be 0.42
Check your plug gap and that you didn't crack a plug.
.044 for 6 cylinder and .040 for 8 cylinder.
ac delco spark plugs are type that originally came with 2003 GMC envoy
6
Use a 15 degree offset GM spark plug socket
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