So did a tune up on the Envoy.. 5.3 with just about 200k on the clock.
Here are the plugs.. 1 plug has me really concerned.
She drove just fine on the way to work. The stumble at idle is gone. New plugs are 41-962. Plugs that came out are 41-110? That doesnt seem right?
It was hard coming out, and even worse going back in with the new one. It sealed up good, and I dont have any mis-fires. But its still concerning. Opinions?
Edit: The stumbling might also have been the intake hose. Right where it goes into the throttle body, half the tube was folded under, and allowing un-metered air in.
Here are the plugs.. 1 plug has me really concerned.
She drove just fine on the way to work. The stumble at idle is gone. New plugs are 41-962. Plugs that came out are 41-110? That doesnt seem right?
It was hard coming out, and even worse going back in with the new one. It sealed up good, and I dont have any mis-fires. But its still concerning. Opinions?
Edit: The stumbling might also have been the intake hose. Right where it goes into the throttle body, half the tube was folded under, and allowing un-metered air in.
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