Weird noise under in left engine

BorisMD · #1 (**permalink**) 04-14-2008, 06:21 PM

Hi all,

I have a 03 Sequoia with about 120k on it. For the last few months, I get a strange, tink like noise coming from the left side of the engine compartment.

The noise only occurs under acceleration. If I am "coasting" it's not there. If I am increasing speed, or maintaining speed climbing a hill, the noise is there.

It also is slightly RPM dependent, so that when the tranny shifts, and the RPMs decrease, the noise decreases slightly.

If the car is parked and idling, and I listen under the hood, I can't hear the noise. I also tried revving the engine and that didn't reproduce the sound. It only occurs under load.

Any ideas?

Thanks,

Boris

TraderHal · #2 (**permalink**) 04-22-2008, 11:48 AM

motor mount?

BorisMD · #3 (**permalink**) 04-22-2008, 11:51 AM

Hmmm, thanks for the reply.

Is there any way for me to check that?

My other thought was perhaps exhaust manifold on that side.

Regards,

Boris

Espiri1975 · #4 (**permalink**) 04-22-2008, 02:19 PM

Borismd, I have a 2001 Sequoia with 132K miles, and it started doing it at 120K. My explanation would be exactly the same as yours. You could have not explained it better.

What are the chances of having anything related to a valve?

I am disabled and am not able to get access to or do much to see what is wrong. I have heard that the most probable cause is a cracked exhaust manifold or something related to that part of the exuast.

Any help will be greatly appreciated.

Thanks

Espiri