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#1
07-08-2008, 10:03 PM
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1999 Pontiac Grand Prix
I have a 1999 Pontiac Grand Prix Gt thats making a weird noise that i have no clue where it coming from. I have checked all the pulleys like the water pump,Power steering pump,Tensioner, Idler every thing I have replaced the Serpentine Belt as well still no luck. If i take out the belt the noise is still there so i dont know what else it can be from i have put alot of money onto this car hopefully someone can help me out. The noise sounds like some kind of bearing noise if you know what i mean.
-3800 v6 naturally aspirated -Auto trans 
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#2
07-08-2008, 10:46 PM
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Re: 1999 Pontiac Grand Prix
Before you put any more money into it, bring it to someone you trust who will properly diagnose the problem. It could be internal, or maybe something to do with your timing chain
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#3
07-09-2008, 11:05 AM
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Re: 1999 Pontiac Grand Prix
Is teh noise a whining noise or a whistling noise?
Does it make the noise when parked, or only when moving? Does it steadily change in pitch with vehicle speed or only when the trans shifts? Be as specific as you can as to what the noise is and what affects it's pitch/frequency and post back.
__________________
 Still waiting for the "good old days" I'll get to bore my future grandchildren with!
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#4
07-09-2008, 05:43 PM
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Re: 1999 Pontiac Grand Prix
Is it possible to get a video or audo clip of the noise?
How is your trans shifting? Very harsh shifts by chance?
__________________
-2000 Grand Prix GTP 170,000mi (daily driver) -2000 Olds Alero 100,000mi (soon to be DD with gas at $3.45/gal) -1997 Chev K1500 4x4 115,000mi (Natalie's truck [nans_grandprix]) AF "2.0" Community Guidelines Conservative Victory 2012!!! "I'll Keep my Guns, Freedom, and Money. You can Keep the Change!" ----->>>>> Did You Know? <<<<<-----
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