Engine Stumble
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Joined: Nov 2004
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Engine Stumble
I have a 97 Explorer XLT w/auto trans. You can hear the engine stumble during idle. It's not enough to make the RPMs to go up and down but you hear it. It doesn't do it , that I can tell, when the vehicle is being driven. I've used fuel injector cleaner and I keep the air filter clean along with changing plugs and wires as needed. I've changed the fuel filter as well. I was thinking maybe an O2 sen... or EGR valve. I was told that my Explorer has to two O2 sen.. and that one of them has a problem of going bad.I would like to know if anyone else has heard that and I would loke to be able to test those items but I need more info on how or even if those could be the problems. Any ideas would be great thanks.
