Im wondering if there are welds in the exhaust manifolds, and exhaust pipe, on a 95 with a 3.4? I have a loud metallic vibration sound coming from the exhaust manifold drivers side. Definitely noticeable. Ive checked the heat shield.. This sound resonates through the entire exhaust!! Help!

 

Anyone know if there are welds in the exhaust manifold, and exhaust pipe on a 95 3.4? I have a noticeable metallic vibration noise coming from the exhaust manifold, drivers side. This sound resonates through the entire exhaust. Ive checked the heat shields.. Odd, but seems to happen at 1600 and 2100 RPM..??

 

the stock exhaust doesnt have welds except for the y pipe theres nothing touching the exhaust anywhere is there???

 

The exhaust manifold is chunk of cast iron, so I doubt anyone tried to weld it. If nothing rattles on the outside, then the problem could be on the inside of the system, such as the muffler and cat disintegrating internally.

 

only post in one section royco

 

Ive checked every where I can think of.. Nothing is touching. I can hear the noise coming from the exhaust manifold, but Ive checked the heat shield thoroughly.

 

Sorry guys, probably should have mentioned the car has a new Cat back with a new high flow cat.. The noise is pre-existing. I thought it may have been the old cat before. Well now that the new exhaust is on, the sound is louder.. ugg.

 

Are there welds in the Y pipe?

 

not in it but on it yes

if i were you id pull out the y pipe and the driver mani and see if theres anything stuck in there

 

lets just stick to the other post and forget this one