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97 Grand Prix making loud humming noise
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KLeasure
New User
Apr 26, 2011, 4:37 PM
Post #1 of 5
(7860 views)
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97 Grand Prix making loud humming noise
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I have a 1997 Pontiac Grand Prix with about 147K on it. My ABS light, along with the "Check Tire Press" light is always on, but I check the pressure in my tires every chance I can get- and well, my tires don't need any more/less air. Just recently while driving usually above 55-60 mph my car makes a loud humming noise, which sounds like it's coming from front right of the car. While taking a hard left the noise goes away and doesn't make any noise until I either put the wheel straight or turn the wheel right. I have no knowledge of major repairs, so I can't really explain it all that well! My apologies! Also, just recently while driving, it sounded like there was a large stick under my car, sounds silly, but that's the best way to describe it! I had pulled off and shut off the car and looked under it to see if there wasn't anything under it--nothing was under. I restarted my car and I had to keep the RPM's above 1000 to keep it running! Luckily I was close to home so I drove it back, but the radio turned off a couple random times. I was told either it's an electric problem (which would make sense for the radio to quit), or something to do with my fuel pump? Please help!!
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Mr.scotty
Enthusiast
Apr 26, 2011, 5:21 PM
Post #2 of 5
(7849 views)
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Re: 97 Grand Prix making loud humming noise
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Sounds like you have a few problems.
But the humming noise could be the Passenger side hub bearing, common problem on fwd GM vehicles.
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Your only as good as your tools!
(This post was edited by Mr.scotty on Apr 26, 2011, 5:22 PM)
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zmame
Veteran
/ Moderator
Apr 26, 2011, 6:10 PM
Post #3 of 5
(7841 views)
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Re: 97 Grand Prix making loud humming noise
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Actually sounds like driver side bearing if it goes away while turning left when you turn left a majority of your weight is on the right side so if it was right side it would make noise.. The only way to be a %100 sure is get the car on a hoist with stephascope and see if one or both bearings need to be replaced. Your other noise might be a heatshild or somthing comes loose hard to say.
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Mr.scotty
Enthusiast
Apr 27, 2011, 7:28 AM
Post #4 of 5
(7824 views)
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Re: 97 Grand Prix making loud humming noise
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Oop's.., your rite it would be the drivers side if he turns left and it goes away.
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Your only as good as your tools!
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Apr 27, 2011, 9:55 AM
Post #5 of 5
(7816 views)
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Re: 97 Grand Prix making loud humming noise
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Noises are funky do diag over the web but it's classic for a wheel bearing. If bad enough you'll feel it with front end hoisted. Warning - no telling if so how long it will last. If that's what you find this one should be easy as they go with air tools a near must.
Should look like this if you have ABS. A tad pricey but beats an accident!
T
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