Thread: Engine Whining

I'm thinking it's the supercharger... but it's pretty loud and only happens when I accelerate. I haven't changed to a CAI or anything like that and it's completely stock.

Just in case it isn't... What else could it be?

Thanks in advance,

Garrett

Definitely,

It happens below 3000rpm as well. It's a 2007 Grand Prix GT SE with the 3.8L. It's got almost 50,000km and I bought it one year ago at 32,000. Should I get it inspected? It was when I bought the car and the CV joints etc were replaced.

The whine is there when I accelerate and when I let go of the gas it stays for a little bit until a certain RPM. I haven't checked it really well.

It's not when I'm turning though... That's the thing. My uncle's Impala had low steering fluid and I could actually hear it when he was turning whining really bad. I have to get my oil changed here soon so hopefully they can check it all out.

Any more help would be great.

Thanks again,

Garrett

I agree with Bill, check that first... it's only like a 2 minute check and if that is the problem you're saving a lot of grief right off the bat... low hanging fruit first, man!

My 08 GP would whine like a ***** under acceleration, and Im NA. Sometimes it would get so loud you couldnt hear the rest of the engine over the whine.

I checked the ps fluid eventually and it wasnt even showing on the dipstick, very low... topped it off and the whine is still a tiny bit audible but nowhere near the volume it used to be. I think I just need to renew the fluid all together, it might be contaminated.

I get engine whine as well sometimes, does the supercharger have fluid and does it need to be changed every once in awhile.

The supercharger rocks but I really don't have a clue on how it works.

I was doing 120 in the kentucky hills on the way to mammouth cave and it just pulls the car up the hills, saw other cars gasping for air.

It was great

TC

Is there any specific type of power steering fluid I would need to put in? What about the supercharger fluid? I'll have to check it once I get home from work.

try checking you tensioner pulley that uses the supercharger belt.. mine was whining abnormally loud and the pully finally broke off,,, it had a bad bearing.... but that was the problem for me,, very easy fix..

Originally Posted by scottydoggs

YouTube - HOW TO CHANGE THE SUPERCHARGER OIL ON A GM 3800 SERIES II V6 sc fluid change vid, any power steering fluid should do the trick.

I made a video that I will post up here in a second so you guys can listen to the noise itself. Would I just have to add more power steering fluid or would I need to flush it?

YouTube - IMG 0037

-Garrett

Originally Posted by scottydoggs

sounds like sc whine, witch is normal, try a vid parked with the hood open and rev the engine while taking the vid, dont over rev it just goose it some.

Where is the throttle under the hood?

-Garrett

I went to my pontiac dealer yesterday and picked up two bottles of 4oz supercharger fluid for my GTP for $24.

After I get a squirt bottle from the dollar to store to reverse siphon the old supercharger fluid, I am going to change it out.

The car has 80,000 miles on it and the supercharger has never been touched or even mentioned by anyone, lol.

I looked in the manual and it said check the fluid level every 30,000 miles, it didnt say change it, just check it but I'd rather switch it out with all new fluid.

The dealer said make sure the engine has been sitting awhile and is cool before changing the charger fluid, is this true?

Thanks
TC

the charger without an intercooler can get up to untouchable temps in under an hour of driving.

Originally Posted by TLSheff

Unless you baby the car everywhere and never get into boost (doesnt happen ) The fluid needs to be changed @ 30k miles. Fresh fluid will go in clear, after avg driving it will go brownish, when it gets dark (like normal oil) its time to change it out

While your out get a good set of dishwashing gloves if you don't have any latex ones already. That oil will be very VERY foul smelling and all the dawn and orange goop in the world will not wash that smell out if you get it on your hands and it soaks in. Trust... I didn't think it would be that bad, like oil it stinks but itll wash out. Not SC Fluid... its something else GF wouldn't let me touch her for 3 days because my hands stunk

Thanks for the heads up about the smell, the dealer said the same thing, something else I can get at the dollar store along with the water bottle for syphoning, lol