OEM 2007 GMC Envoy Spark Plug

2007 GMC Envoy Parts Questions & Experts Answers

• Q: How to replace spark plugs in an engine on 2007 GMC Envoy?

  A: Begin the Spark Plug replacement process by disabling the Ignition Switch then taking off the ignition coils. Wait for engine cooling before removing the spark plugs to stop threads from seizing that could break Cylinder Head threads. A thread chaser removes contaminants from the Spark Plug recess during cleaning because foreign material in the Cylinder Head could obstruct new plug install. Pull out all spark plugs present in the engine compartment. Install new spark plugs of the exact specifications for your vehicle because alternative temperature types could cause destructive engine damage. A round feeler gage must check the gap of new and reconditioned spark plugs because pre-set gaps might have changed while being handled; improperly set gaps could result in engine performance issues or engine damage. Check the current Spark Plug gap value then analyze it against documented specifications. You should check that the Spark Plug enters the Cylinder Head without resistance before completely anchoring into position using a thread chaser tool when the threads require light cleaning. The engine spark plugs require installation followed by proper torque of 18 n.m (13 lb ft) after which the ignition coils can be reinstalled.