Why is my 2006 Grand Prix whining when it is cold?


Asked by GrandPrixOwner Dec 20, 2011 at 09:55 AM about the 2006 Pontiac Grand Prix Base

Question type: Maintenance & Repair

I'm thinking it's the power steering fluid, but when looking at the manual, it says you
should never have to top it up. It's a whining sound, and is only really prevalent
when my car has sat overnight.  

11 Answers

Jonathan Furse

If there's a dipstick for the power steering fluid, check it and top it off if necessary. I'd imagine that it's just the accessory belts warming up though. Cars tend to develop little quirks and personality as they age.


Does the sound you hear get worse when turning the wheel??? If not how long until it goes away??? if it gets worse when you turn then it is most likely a power steering pump but I have seen a bad power steering rack cause a similar problem..... if all fluid levels are normal then have your local shop check out your power steering system.

3 out of 3 people think this is helpful.

If it is a high pitched whine only when it's started cold,and as the engine warms up it goes away,or stops whining shortly after starting,you may want to get your alternator checked and battery,the reason for this is,when the battery is low on reserve power it makes the alternator work over time the noise you hear is the two magnetic forces inside the alt working at maximum load.If you take it to a shop,a few thing's that's nice to know about alternator's,they can only produce 14.7volts max any more than that and you are getting a.c voltage,if you check the battery with a charger put a volt meter across the terminals when it's on charge if the voltage reading is more than 14.7volts then the battery is not good.I hope some of the info is helpful. DRDC

3 out of 3 people think this is helpful.

Yes, when it's cold it gets worse when I'm turning. This morning it wasn't very cold out, and there was no whining sound at all, even after sitting all night.

Jonathan Furse

It could be the bearings on the power steering pump pulley going out.

1 out of 1 people think this is helpful.

I have the same car and it is a very big Pain in the butt to check your fluid level because the fluid reservoir is behind the engine. You have to get your arm back there however you can to check the level. If it is low use a Funnel with a long hose stuck on the end of it to be able to fill the reservoir so you do not make a big mess all over the floor of your garage. If your fluid levels are normal then you need to have a shop check out your pump and or steering rack. Sometimes when your rack is cold the seals inside shrink and let air in the system, it will make that noise once the fluid warms up and the seals start to take there shape again it slowly disappears. Hope this helps a little bit.


Yes, that helped a lot. Thank you very much. Cheers.

Not Active

try adding some p/s fluid you might have a leak .

1 out of 1 people think this is helpful.
Kurt Tautenhan

I have this same issue, trying to find more information

Kurt Tautenhan

Initially my brother put some power steering fluid in and that kept it fairly quiet for awhile. Recently it has started getting colder out and when I start it up and press the gas a bit, it get's louder. As the car warms it up it tends to get better but it's constant. I just listened to it more and the noise is coming right from the alternator/pulley area...

2 out of 2 people think this is helpful.

I've had to change my serpentine belt three times in the past 5 years. It wears on the edges. The noise is worse when it is cold but never goes away until replaced. If rubbing candle wax on the edges quiets it down temporarily, it is the belt. Unrelated I also have power steering noise.

Your Answer

Add photo

Related Questions

Grand Prix
Looking for a Used Grand Prix in your area?
CarGurus has 4,248 nationwide Grand Prix listings starting at $800.

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Reputation 2,650
#2 Tom Demyan
Tom Demyan
Reputation 1,880
#3 John Saffrahn
John Saffrahn
Reputation 1,300
View All

Related Models For Sale

Used Chevrolet Impala"
1,380 Great Deals out of 47,468 listings starting at $1,800
Used Dodge Charger"
488 Great Deals out of 30,723 listings starting at $2,999
Used Pontiac G6"
225 Great Deals out of 5,958 listings starting at $1,800
Used Pontiac Bonneville"
7 Great Deals out of 791 listings starting at $995
Used Chevrolet Monte Carlo"
31 Great Deals out of 1,895 listings starting at $2,599
Used Pontiac Grand Am"
10 Great Deals out of 1,932 listings starting at $2,250
Used Ford Mustang"
690 Great Deals out of 37,655 listings starting at $1,800
Used Chevrolet Malibu"
968 Great Deals out of 62,749 listings starting at $1,195
Used Pontiac GTO"
8 Great Deals out of 410 listings starting at $6,800
Used Nissan Maxima"
339 Great Deals out of 21,164 listings starting at $399
Used Chrysler 300"
449 Great Deals out of 23,420 listings starting at $1,000
Used Nissan Altima"
1,033 Great Deals out of 72,710 listings starting at $400
Used Toyota Camry"
1,246 Great Deals out of 78,098 listings starting at $1,450

Used Cars For Sale

2008 Pontiac Grand Prix Base For Sale
13 Great Deals out of 499 listings starting at $2,495
2007 Pontiac Grand Prix Base For Sale
14 Great Deals out of 424 listings starting at $3,488
2006 Pontiac Grand Prix Base For Sale
9 Great Deals out of 464 listings starting at $1,988