I just recently started to notice a noise. There is always the scream from the SC. But now its a weird noise. I've heard of the marbles in a can noise.... But it dont really sound like that. It almost sounds like an exhaust leak but it doesn't make sense that its only when i start to hit boost. Any help would be appreciated to help me trouble shoot. It sounds like its coming from the passenger side of the engine bay.

 

Might be the Heat Shield. Mine is ratteling and I think I just need to put it on the hoist and tighten it down.

 

Might be the Heat Shield. Mine is ratteling and I think I just need to put it on the hoist and tighten it down.

 

But wouldn't that rattle all the time and not only in boost? As soon as i go over 0 on the boost gauge it makes a weird ass noise that almost drowns out the superchargers scream.

 

try checkin ur coupler in the s*c might only happne when u get into boost... or u could always check for vacume leaks .

 

I've heard alot of diff RPM's (mine starts at about 2200-2500) that it starts but its real easy to check and see if thats what it is.

If you jack it up and get someone to put their foot on the gas till you locate it, that'd probably be your best best at finding out where its coming from.

Good luck. Hope any of this helps.

 

im in the process of figuring out the same proble with my car actually going to the shop now ii vchanged my flex pipe still making the sound now im off to check the header gasket it is annoying as hell !!

 

tell me about it. It makes me not want to drive in boost it sounds like its winding up to blow up LOL. Thats all i know.

 

SC Coupler?

 

@Champ, what ever became of this problem? I think I have the same thingn but not sure, having trouble figuring it out, only happens as boost increases and sorta sounds like an exhaust leak.