Whining noise with acceleration

Tiny
ZO6505
  • MEMBER
  • 1 POST
  • 2006 PONTIAC GRAND PRIX
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 98,000 MILES
Noises problem
2006 Pontiac Grand Prix 6 cyl Front Wheel Drive Automatic 98000 miles

My car makes an awful noise everytime I turn the wheel. Its a loud whine and I don't know what I can do to fix it. Also after about 55 mph the whole car starts to shutter and wobble. Please let me know if I can fix it or do I need to take it to a professional. Thanks
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Monday, May 1st, 2017 AT 8:36 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Let the pros handle it -might be beyond your abilities and also lacking the special tools needed.
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Monday, May 1st, 2017 AT 8:36 PM (Merged)
Tiny
KITTYBELLE
  • MEMBER
  • 1 POST
  • 2004 PONTIAC GRAND PRIX
48000 miles
v6
It is making a loud whining noise (like a loose belt almost). Now the steering wheel when I turn it makes a grinding sound.
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Monday, May 1st, 2017 AT 8:36 PM (Merged)
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Sounds like you are low on power steering fluid. Might want to top it off and look to see if you can see where it is leaking out of.
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Monday, May 1st, 2017 AT 8:36 PM (Merged)
Tiny
PAUL LAWRENCE
  • MEMBER
  • 1 POST
  • 1999 PONTIAC GRAND PRIX
  • 166,000 MILES
To keep an adequate amount of fluid in it has been cumbersome to say the least. Money is tight as my failure to fix properly. I now have a whining sound that is evident right from start up. It gets louder as I accelerate from a stop
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Monday, May 1st, 2017 AT 8:36 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
If its still leaking why don't you just replace or have it repaired-what's the problem here
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Monday, May 1st, 2017 AT 8:36 PM (Merged)
Tiny
CAROLMOSHER85
  • MEMBER
  • 1 POST
  • 2004 PONTIAC GRAND PRIX
  • V8
  • 2WD
  • AUTOMATIC
  • 93,000 MILES
Noises problem
2004 Pontiac Grand Prix V8 Two Wheel Drive Automatic 93,000 miles

My car has been making a super loud whining noise when I push on the accelerator. It does this about 90% of the time. I've had a number of oil changes and am very suprised that no one has mentioned that I should have it looked at or anything. Any ideas?
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Monday, May 1st, 2017 AT 8:36 PM (Merged)
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,549 POSTS
I would look at the belt tensioner assy.
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Monday, May 1st, 2017 AT 8:36 PM (Merged)
Tiny
GARY GENTRY
  • MEMBER
  • 1 POST
  • 2007 PONTIAC GRAND PRIX
  • 3.8L
  • V6
  • FWD
  • AUTOMATIC
  • 100,000 MILES
As soon as I put car in gear it starts whining sound appears to come from the driver side and it whines the hole time it's in drive I can shift to neutral and whine quits.
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Monday, May 1st, 2017 AT 8:37 PM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,550 POSTS
Hello Gary,

This is a sign that the transmission fluid filter is plugged and needs to be replaced, Here is a guide that will give you an idea on how to get the problem fixed.

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission

Please let us know what happens.

Cheers, Ken

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+2
Monday, May 1st, 2017 AT 8:37 PM (Merged)
Tiny
JENNYNEAL58
  • MEMBER
  • 3 POSTS
  • 2001 PONTIAC GRAND PRIX
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 150,000 MILES
Steering problem
2001 Pontiac Grand Prix 6 cyl Front Wheel Drive Automatic 150000 miles

I have a 2001 Grand Prix GTP Supercharged and since May 2009 I have had whining noise coming from the car. It is loudest inside the car. The history is: power steering line was replaced due to leak, system was flushed and refilled. Noise continued. Power steering pump has been replaced 4 different time with Delco parts, the rack and pinion has been replaced. The noise continues. The power steering was just flushed again today and GM power steeing fluid was put in (apparently the mechanic was using something else). The noise is still there when the steering wheel is turned left and right. Loudest when turning left. Any suggestions?

Thank you
Jenny Neal
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Monday, May 1st, 2017 AT 8:39 PM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
Hi there,

The power steering consist of only 3 main components, the pump, the rack and the oil lines, as you have mentioned the pump has been replaced 4 times, and the rack has been also replaced and the noise continues, I mentioned that this type of noise in my opinion is pump related but like you point out same noise and 4 pump whats the chances. I feel that a rack will not in itself create this type of noise, but after thinking about this for a while, I am wondering if the pressure hose has partly de laminated internally and is creating a restriction which could cause this, I would be thinking that it would be the same both directions as we only have constant flow at this hose, my other concern is the wrong oil, has this done any damage to pump or rack seals and valves? Was the incorrect oil used with each change of pump & rack?

Mark (mhpautos)
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Monday, May 1st, 2017 AT 8:39 PM (Merged)
Tiny
JENNYNEAL58
  • MEMBER
  • 3 POSTS
Hi:

The lines have not been changed to my knowledge and yes, the wrong oil was used with all pumps and the rack. I am going to guess that my next step would be to have the lines changed to see if that does the trick, if not, then there is a possibility of having to change the pump and rack and pinion again. Correct?

Thank you so much!
Jenny
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Monday, May 1st, 2017 AT 8:39 PM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
Hi Jenny,

I have been re reading all these posts and something just struck me. In your first post you mention that the lines were changed already, now what I feel we really need to do first up to get to the bottom of this problem is definitely prove that the power steering is actually the origin of the noise, I have be singularly minded that this is the case but now I am not sure, so what we need to do is drive the car with the power steering belt removed, now this will be heavy steering until you get some road speed up, so my suggestion is to get a fairly strong male driver to do this for you, you won't need to go far as if the steering is at fault, you will not hear any noise even just turning one corner, is this an option open to you to prove the steering one way or the other?

Mark
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Monday, May 1st, 2017 AT 8:39 PM (Merged)
Tiny
JENNYNEAL58
  • MEMBER
  • 3 POSTS
Hi Mark:

Yes, that is an option. I have a few friends that I can get to drive the car for me. I will let you know how this goes in a few days when I can catch up to them to have them try this.
Thank you!
Jenny
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Monday, May 1st, 2017 AT 8:39 PM (Merged)
Tiny
TGOULD
  • MEMBER
  • 1 POST
  • 2004 PONTIAC GRAND PRIX
2004 Pontiac Grand Prix 6 cyl Front Wheel Drive 82000 miles

I have a GTP and when running it has a high pitched whining sound, like a tight rubber band. As I put the gas down, it gets louder.
If anyones has any ideas. If you do, is it easy to fix?
The car does not seem to have any less power or hesitations.
Thanks, Terry
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Monday, May 1st, 2017 AT 8:39 PM (Merged)
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Sound like a squealing fan belt? Check he serpenine belt, and tensioner.
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Monday, May 1st, 2017 AT 8:39 PM (Merged)
Tiny
PONTIACNEWBIE
  • MEMBER
  • 1 POST
I had all the problems in my 2008 Pontiac Grand Prix mentioned above: Whining while turning or accelerating which seemed to be getting worse. By the time I found this forum and excitedly went to tell my hubby (the car guru of our home) that this seems to be a common problem with Pontiac vehicles and that the steering fluid system might be the problem, he was already way ahead of me under the car trying to determine if the steering fluid was leaking out of the pump or lines. He knew there had to be a leak because a few days ago, when he had suspected the issue was related to steering fluid being low and had topped it up, the noise seemed to disappear and I drove to work the next day in perfect silence; but this success was short-lived as the trip home was not as quiet. (Incidentally, the leak must happen when I am moving because there was no hint of any leakage where I park.)

My hubby found out that the leak was in the hose, evidenced by the clean piece of metal right under the hose (Yes, I got under the car too and spied the evidence.) On removing the cover (insulation?) of the hose, he saw a crack in the return hose. (Of course it had to be the one part that no auto shop in this area keeps in stock...and also the one that would be a real pain to replace!) I am attaching an image of the culprit (below), but here's a link to the image as well: https://ibb.co/TYZLKrK (The part where you see the break is where the crack was. It was not completed split like that; he cut it at that weak point in order to be able to make clean cuts on either end to remove this section.)

He decided to improvise and fix the problem with what he had on hand rather than wait for the not-so-cheap replacement hose from the factory. Since the return hose is not the pressure hose, he figured he could replace the damaged area with a rubber hose fastened to the rest of the hose with metal zip ties. It seems to have worked because my car is no longer making any noise as I drive, accelerate or turn corners.

So all those who said to look for a leak in the steering fluid system were right on the money.
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Sunday, October 6th, 2019 AT 8:02 PM
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Hi,

Thanks for the update. I am sure that info will help others that have a similar issue. Thanks
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Monday, October 7th, 2019 AT 2:39 PM

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