Cadillac Seville The Cadillac luxury combined with a performance sedan feel

1980 Seville 368cid backfiring and running rich, stinking of gas

Old Nov 26, 2019 | 06:33 PM
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From: Upstate NY
Default 1980 Seville 368cid backfiring and running rich, stinking of gas

No codes. I ran 3 cans of SeaFoam in a half tank of gas, no help.

Sprayed the throttle body down with a half can of CRC Throttle Body Cleaner while activating throttle cable by hand - VOILA - problem virtually gone - no more rich running smell, no more back firing every time I let off the gas - went down a hill at 60, came off the gas, dropped into 2nd, and got 1 little half-hearted pop, but that was it.

Problem solved as far as I am concerned.

Hope this helps someone.
 
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