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What would cause a engine knock?

Tiny
REDROSIE57
  • MEMBER
  • 1988 CHEVROLET CELEBRITY
  • 140,000 MILES
We had a strong gas smell. We changed the fuel pressure regulator and now its knocking.
Sunday, April 22nd, 2012 AT 4:28 AM

2 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Where is the noise coming from?
Is engine running smoothly?
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Sunday, April 22nd, 2012 AT 6:15 AM
Tiny
REDROSIE57
  • MEMBER
  • 2 POSTS
We had to put on a new fuel presssure regulator. After they got it back together, cranked it up and started knocking. Then there was smoke coming from the back where the regulator is. Our so-in-law said it might be a something like an exhaust leak there. It was midnight so he really couldn't tell.
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Sunday, April 22nd, 2012 AT 11:44 AM

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