Exhaust leak?
#1
Exhaust leak?
Yet ANOTHER weird problem with my 07 tls. On cold starts, not necessarily real cold weather, but cool engine, my engine make a very loud putting or pulsating sound which goes away as the engine warms up. I think it's an exhaust leak at the rear cat connected to the manifold. Anybody ever have a leak there? Any other ideas of what the noise is? Note, the sound increases with higher revs.
#2
Racer
iTrader: (2)
I have the same noise at start up.
Goes away after 20 - 30 seconds.
Then I started hearing it when I was driving.
After a few weeks of I figured out I also have a cracked precat that is on the front end of the car.
What is wierd is that the sound at start up comes from the same area as the defective precat.
Goes away after 20 - 30 seconds.
Then I started hearing it when I was driving.
After a few weeks of I figured out I also have a cracked precat that is on the front end of the car.
What is wierd is that the sound at start up comes from the same area as the defective precat.
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justnspace (10-22-2012)
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