Engine noise at and above 2000 rpms
Thread Starter
Teching In
Joined: Jan 2003
Posts: 33
Likes: 0
From: Sterling Heights, MI
Engine noise at and above 2000 rpms Last night I notices a sort of whinning, which seems to come from the engine. The best way to describe it is a very very low supercharger sound. The noise only appears at 1750 rpms and all the way up until it shifts under that. I just replaced my belt 4 weeks ago and my waterpump was replaced about a year ago. I taking the car into the shop on Saturday, but would like your help for suggestions to mention to the mechanic. The faster they find the problem the quicker I can get it back.
Thanks
Scott
Thanks
Scott
I have the same thing and I think it's my power steering pump or something like that... I just let my cabin drone drown it out... Can't wait to get that bullet and fix my LM 
12 Second Club
Joined: May 2002
Posts: 262
Likes: 1
From: Holiday, Fl.
You prob. already did, but if not, check your power steering fluid level. Mine got real loud one day, I checked it, it was barely low. I added enough to bring it to the upper level of full and it quieted back down. Don't know where it went, no leaks that I can see or find? 
Good Luck!
Good Luck!
Thread Starter
Teching In
Joined: Jan 2003
Posts: 33
Likes: 0
From: Sterling Heights, MI
Well I checked the pulleys and they all seem to be fine. A buddy suggested putting baby powder on the belt. I thought he was yanking my chain but I tried it. It's been 5 days now and no noise. Who would of thought that baby powder has more uses than to help a red ***.
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Get a stock belt from gm, my car started like that then ended up a loud noise, replaced the belt and so far no noise. Belt number#12569527 look it up a sdcpgmperformance parts their a ls1tech sponser, you can buy it from them at half the price I paid 43 bucks at chevy dealership.
Staging Lane
Joined: Oct 2004
Posts: 64
Likes: 0
From: Dallas, TX
My '02 has had that sound from day one. I took it in about a month ago because the power stearing cap was bad. You could see fluid had come out from under the cap. I will listen for the supercharger sound and see if it is gone. 