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10-03-2009
Hey i might be overeacting because i have never owned a grand prix before but here goes. I have a 2002 gtp with 140k, when i start it up i can instantly hear a really high pitched humming seeming to come from the dash, it isn't very loud at all, my radio or fan can drown it out so it's more of a nuisanse than anything, any suggestions?
10-03-2009
I would check to see if it does it at different RPMs. It sounds like it might be a vacuum leak. Not major by any means, just annoying. If you want to get it to stop, you might first start by checking to make sure all of your lines/hoses are tight.
10-03-2009
Thanks man! I will certainly check the hoses and such. i'll let you know if it fixes the problem.
05-10-2010
Is it an electronic high pitch sound (humming) or buzzing? my 08 gxp dash makes that sound constantly, dont know why? driving me crazy!!!
Last edited by joe10810; 05-10-2010 at 10:45 PM.
07-30-2010
sure it's not the supercharger making noise that your hearing?
08-13-2010
I have a GXP not a gTP. no supercharger. sounds like a msd ignition control box sound
08-13-2010
joe10810 I was talking to the guy who started the thread he has a gtp. But I took my drl fuse out so my daytime running lights would go off and I had that same sound!! By any chance that might be your issue? Sounded like it was coming from my driver side I put the fuse back in and it went away
08-14-2010
ok, I will try it. thanks
08-14-2010
yea make sure that fuse is not missing and if it's not make sure it's not blown if that's not the problem sryy I couldn't help
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