Loss of power backfires

Tiny
DAVID GENTER
  • MEMBER
  • 1999 OLDSMOBILE AURORA
  • 3.6L
  • V8
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
Changed plugs wires, air filter. Idles rough in drive, consumes a lot of gas and loss of power.
Saturday, September 28th, 2019 AT 9:03 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Hi David,

I attached a couple of guides that will take you through the most common causes of this type of issue. Give these a read and tell me what you think.

https://www.2carpros.com/articles/engine-backfires-while-running

https://www.2carpros.com/articles/engine-has-low-power-output

My bet is on a vacuum leak because I have seen similar issues on one of these and that was it. Also, we need to check for codes before we get to far because that will narrow this down and save a lot of time. If you can't pull codes, then most parts stores can do this for you free of charge.

Let me know and we can go from there.

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
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Sunday, September 29th, 2019 AT 3:21 PM

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