Questions & Answers for: 2004 gmc envoy spark plug

...bad coil number 5 or spark plug is bad change the plug first see if it helps if not change the coil make sure the engine is cold can warp head if not check gap and use aintsize hope this helps ...

plug on a 2004 gmc envoy? .040 to .044" would be normal. The gap should listed on the emission sticker under the hood. Make sure you use the O.E. AC/Delco plugs. This engine will run on those the best

What is the gap for 2004 GMC Envoy spark plugs? Which engine ? 4.8L, 5.3L, and 6.0L or 4.2 L

...2004 GMC Envoy,and I turned on the envoy,and it is throttling,What did I do wrong? check for proper seating of coils / plug gap and connectors around the throttle body for possible accidental ...

2004 GMC envoy 4.2 liters Spark plug gap 0.0425 or .042 the gap on spark plugs gets wider with age so the 0.0005 won't make much difference. Natalie, our 4.2 engine only likes 1 sparkplug. AC Delco 41

2004 GMC Envoy SLE, and my check engine light is on code PO526 fan speed sensor circuit, and code PO300 I have a 2004 GMC Envoy SLE, and my check engine light is on code PO526 fan speed sensor circuit