Question about 2002 Dodge Ram 3500 Truck

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2002 Ram Cargo Van

Our work van is bucking and backfiring. Dealer has given it a tune up,fuel inject cleaning,and now oxygen sensors were replaced..still same problem and they r stumped. Any ideas??

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  • Anonymous Oct 07, 2008

    Same bucking problem. Replaced O2 sensor and EGR valve. Better but still not right. Thinking it might be the fuel pump starting to go bad. The basic problem is it runs too lean.

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Mcdevito75 here, Maybe a timeing belt, Ignition system out of time, a bad intake valve. Have the dealership check all.

Posted on Jul 11, 2010

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