Backfiring when accelerating, shaking and losing power

Tiny
ALICIAHOLTZER
  • MEMBER
  • 2006 CHEVROLET COBALT
  • 2.0L
  • 4 CYL
  • 2WD
  • MANUAL
  • 149,000 MILES
The car has a tick to the engine that started about 2 weeks ago. Last night, it started backfiring with acceleration, shaking and losing power. I can smell exhaust and cant get the car up to speed to get into fifth gear.
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Sunday, November 24th, 2019 AT 4:33 AM

1 Reply

Tiny
KASEKENNY
  • EXPERT
More than likely you have a valve issue. I would run a compression check to start and then a cylinder leakage to see where you are loosing the compression assuming it is low. However, this sound like a broken valve spring.

Let me know what the compression readings are and we can go from there. Thanks

https://www.2carpros.com/articles/how-to-test-engine-compression
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Sunday, November 24th, 2019 AT 4:44 PM

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