ENGINE BACKFIRE UNDER LIGHT LOAD.

Chevrolet

Tiny

garceau83

January, 5, 2006 AT 9:09 PM

1990 3.3 Plymouth Voyager started backfireing under heave accelleration but now backfires under light load. Have replaced the coil pack, plugs and wires. Sometimes sounds like a clunk deep in the engine. Engine has about 90,000 miles. Any suggestions will be appreciated.


Garceau83

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