Chatter sound caused by this

[BIGBILL105 45]

But what exactally is this? Its been causing a chattering sound at higher RPMs and I just found out today that this is the problem. It is rusted off of the manifold.




And this is where it leads to.

[harrys91rs]

That's your exhaust back pressure sensor. You can get a replacement exhaust back pressure tube from the dealer. I'd also check the sensor and make sure its not clogged with soot as well.

[dzchey21]

holy rust bat man

[BIGBILL105 45]

Originally Posted by harrys91rs

That's your exhaust back pressure sensor. You can get a replacement exhaust back pressure tube from the dealer. I'd also check the sensor and make sure its not clogged with soot as well.

Alrighty thank you.

Originally Posted by dzchey21

holy rust bat man

Trust was a former salting/ plow truck. Underneath is pretty bad.