Exhaust Manifold Gasket??

[Corinthone13]

I have searched through the forums and could not find a definite answer to this question. If there is already a forum on this topic I apologize in advance.

I have a 2003 Bonneville SSEi. We recently noticed a strong exhaust smell in the cabin compartment when the car was idling. When are driving we do not smell it. Just this morning I heard a loud ticking noise coming from the engine when I started it to let it warm up. I have no idea what is causing this symptoms. From what I have read on other forums I wonder if it could be the exhaust manifold gasket. Any assistance is greatly appreciated!

[myfirstbonnie]

Most likely the flex joint. The gaskets are a multi layer as and usually are not a problem. Has there been any exhaust work lately?

[Corinthone13]

No. I have never had any exhaust work done on the car.

[willwren]

Check that flex joint between the rear manifold and downpipe. I agree that's your most likely leak.

[Corinthone13]

Thanks for the tip. I will check it out. Would that also account for the ticking noise?

[willwren]

Yes, and it's probably the most likely (but not really common) exhaust leak location. We HAVE seen the Series 2 cast manifolds crack and break though, so get a mirror and a flashlight and inspect well.

For the donut gasket in the flex joint, start with a cold motor. Start it and stick your hand back there feeling for it. Make sure your AC is off so the fans won't run and fool you.

[super bonni]

I have the same problem. I just want to confirm that the gasket is a donut and is there a internet source for them? Thank you, Marko