Jeep Wrangler

Why would your 1997 Jeep Wrangler try to stall and backfire if you let it idle or drive it when the engine is cold?


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Wiki User
2004-07-09 09:12:22
2004-07-09 09:12:22

Hay Jayson==It sounds like it is running with a lean mixture. If you have a check engine light on, go to auto zonde and have the codes read free. I would also run some injector cleaner through the engine. GoodluckJoe


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A bad crankshaft sensor can have several symptoms. The engine could stall, backfire, be sluggish or not run at all.

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Why would it stall or almost stall in Reverse but not in Drive? How long since it's received a tune-up and thorough check-up? How is the compression?

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Because reverse is a lower ratio gear than drive and puts less load on the engine.

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I replaced the crank sensor and the cam pick up that is under the distributor cap and still the wrangler wants to stall or back fires and bucks at 1200 to 2000 RPM when accelerating

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