New Noise

[bammbritt]

I just had my spark plugs changed and my power valves done at the dealer about 200 miles ago. I just started to hear a rattle on start up that goes away once the truck warms up. The noise will keep increase with the RPMs. It kind of sounds like a heat shield but up in the engine area, are there any shields up that far? I have removed all the ones under the truck. Its just a strange noise and it is louder than I remember compared to the heat shields. Would an exhaust leak go quiet once the truck is warmed up?

Thanks

[Tungsten]

An exhaust leak would get quieter because of things expanding. Maybe you can record a video of the rattle?

[1994SEV6]

sounds like you're describing heat shield rattle from the exhaust pipes directly after the manifolds. they will drive you crazy

[bammbritt]

Thanks, I will check those heat shields first and see if thats it. If not Ill post a video.

[bammbritt]

That was what it was, I just removed them. Thanks!