Backfire in engine compartment

Asked by Jan 27, 2017 at 04:16 PM about the 2002 Dodge Ram 3500 ST Standard Cab LB

Question type: General

I've got a 2002 dodge ram
3500 V10. I've got a problem
with backfire (in engine
compartment it seems) under
heavy acceleration. New fuel
pump, spark plugs and wires
and had throttle body recently
cleaned as well. Vehicle has
about 73,000 miles on it, has
a good idle but engine seems
to be "jumpy" going up hills.
Any ideas?

1 Answer


A backfire at the intake manifold or throttle body under acceleration is usually caused by a lean air/fuel mixture and sometimes retarded (late) ignition timing. HTH. -Jim

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