my WEIRD engine sound as of a few hours ago
12-08-2011, 09:59 PM
#1
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my WEIRD engine sound as of a few hours ago http://youtu.be/CaHYi_RxjuA
just got the water pump changed to have this high pitched buzz greet me. radio off, not from speakers. corresponds with throttle usage
...but hey exhaust sounds pretty good only at 2k rpms huh?
just got the water pump changed to have this high pitched buzz greet me. radio off, not from speakers. corresponds with throttle usage
...but hey exhaust sounds pretty good only at 2k rpms huh?
12-09-2011, 12:35 AM
#4
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Take the belt off and listen. What kind of quality pump did you put on? If it wasn't there before and is now. Ask yourself, what did I change? Its common sense broseph. But thats why we are here to help. hope you get her figured out. 
Then again you could have always had that noise and are just now noticing it.
Then again you could have always had that noise and are just now noticing it.
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12-10-2011, 02:36 PM
#8
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Those have an aux. amp don't they? Could still be coming through the amp somehow. Other than that idk, sounds like speaker whine, hard to tell without actually hearing it. Can you hear it outside the vehicle?
12-10-2011, 02:40 PM
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i have the same sound whine on my car and I know for a fact that is due to my speakers/system.
on my end its going to be my head unit. i have to ground my head unit rca's. this is a known problem with some Pioneer decks.
OP do you have an amp? if so I bet you that if you use put a ground loop isolator on it the whine will be either completely gone or mostly gone.
12-11-2011, 02:05 PM
#12
TECH Apprentice
Yeah that's what I'm thinking^. Find an electrical schematic for your car and check all your grounds, make sure they are tight and clean of rust and paint and are making a good contact with the grounding point not just grounding through the bolt or stud they are mounted on. If you unhooked your battery disconnect it again, confirm the cables and contacts aren't corroded and are tight. Typically a stereo whine is lack of good ground somewhere. If you removed an engine ground or any ground wires while doing the work go back, remove the ground again and confirm the above things and reinstall and tighten, don't have to heman it, just make sure it's tight. If you still have whine, take a piece of wire and crimp some loop terminals onto it and run it from engine to the subframe ground to see if that makes a difference, and from the engine to the body, and subframe to body.
