Mechanics

I SUSPECT THE ENGINE HAS A LEAKING EXHAUST MANIFOLD

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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Stokes
May 2, 2012.



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.

Saturntech9
May 2, 2012.
Thanks >> Is there a spray one can spray the area to check for leaks?

Tiny
Stokes
May 2, 2012.
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

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

Saturntech9
May 3, 2012.