I SUSPECT THE ENGINE HAS A LEAKING EXHAUST MANIFOLD

  • Tiny
  • Stokes
  • 1995 Buick Riviera
  • 160,503 miles

When the engine is first started I suspect the noise I hear is a leak from the exhaust manifold. However after a short while the noise is silent.

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Wednesday, May 2nd, 2012 AT 9:42 PM

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  • Tiny
  • saturntech9
  • Expert
  • 29,869 posts

See if you have any loose or broken bolts holding the manifold on also look for black carbon showing signs off exhaust going around the manifold. Thats where I would start.

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Wednesday, May 2nd, 2012 AT 9:49 PM
  • Tiny
  • Stokes
  • Member

Thanks >> Is there a spray one can spray the area to check for leaks?

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Wednesday, May 2nd, 2012 AT 10:12 PM
  • Tiny
  • ASEMaster6371
  • Expert
  • 25,556 posts

No spray but look for smoke when you start it to narrow down the leak.

You can get someone to close off the exhaust out the back with a rag for a minute to force the leak as well.

Roy

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Wednesday, May 2nd, 2012 AT 11:46 PM
  • Tiny
  • saturntech9
  • Expert
  • 29,869 posts

With the spray your thinking of looking for a vaccuum leqk not exhaust leak.

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Thursday, May 3rd, 2012 AT 1:10 AM

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