I have a rattle that almost sounds like air being released on a cold start when sitting at idle. I've went under when this happened and clamped the exhaust with my hands and seems to fix it it. The problem is that I've checked all the brackets holding the exhaust and they are all tight. Any idea what it may be? It's a 4" exhaust.

If anyone can help I'd apprciate it.

Bill

 

Mostly gasser guys here but will give it a shot. I assume you are using band style clamps. If so some of them use a small insert that fills in where the clamp comes together. If that is not there I have seen them come loose and or rattle around.

 

I have an exhaust rattle too... turns out it is inside the muffler... got the 4" exhaust too

 

id say exhaust clamp as speeddemon said, and my method of fixing it, cut a hole in your hood and run hood stack right off the turbo

 

Thanks for the heads up and replies! I will give those suggestions a try

 

Any of you out there from Canada, no offense to US guys as my brother lives there but having a hard time finding 15w40 Synthetic Oil for my truck in Canada(either than ordering it) . Any you Canadians know what supplier I can get it from? I live in Port Coquitlam, B.C. Canada

Love to know,

Thanks All,

Bill

 

Check the heat shields...