Loses power

1993 BUICK REGAL
152,000 MILES • 3.8L • V8 • 2WD • AUTOMATIC
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GARRETT3185
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The car runs smooth for awhile and then loses power and starts rumbling. There is smoke or fog coming out of the exhaust pipe.
Oct 23, 2017 at 10:09 AM
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STRAILER
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It sounds like the fuel pump is going bad. HEre is a guide to help you confirm the problem.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Fuel pressure should be between 45 and 55 psi.

If you confirm the problem and the fuel pump needs to be replaced here is a guide to help you see what you are in for when doing the job.

https://www.2carpros.com/articles/how-to-replace-an-electric-fuel-pump

Please let us know what happens.

Cheers, Ken
Oct 25, 2017 at 4:06 PM