What is causing this engine noise?...
Thread Starter
Instructor
Joined: Apr 2009
Posts: 106
Likes: 14
From: LA CA
What is causing this engine noise?...
Does anybody know what is causing this engine noise in my C5?
It comes and goes randomly. I first noticed it about a year ago while my car was getting tuned. Then it popped up again last weekend.
I uploaded a video of it here on youtube:
http://www.youtube.com/watch?v=1EolP...ature=youtu.be
The only thing I've done on the car recently was change a squeaky idler pulley.
Thanks,
-Ed
It comes and goes randomly. I first noticed it about a year ago while my car was getting tuned. Then it popped up again last weekend.
I uploaded a video of it here on youtube:
http://www.youtube.com/watch?v=1EolP...ature=youtu.be
The only thing I've done on the car recently was change a squeaky idler pulley.
Thanks,
-Ed
Racer
Joined: Oct 2010
Posts: 302
Likes: 2
From: Baton Rouge LA
Hidden supercharger?!
On a serious note, sounds like it would be something rotating on the front of the motor. Take off the belts and start the motor again, see if the sound comes back. Good time to feel the idler pulleys, see if they rotate smooth. I bet it's a idler, pump, or compressor on the front.
On a serious note, sounds like it would be something rotating on the front of the motor. Take off the belts and start the motor again, see if the sound comes back. Good time to feel the idler pulleys, see if they rotate smooth. I bet it's a idler, pump, or compressor on the front.
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
Recommend you buy an automotive stethoscope and locate the noise. They are very inexpensive and quite effective. Sure sounds like a bearing noise or belt squeak. Should be easy to locate hopefully.
Pro
Joined: Aug 2009
Posts: 662
Likes: 0
From: Loxahatchee FL
As stated, take belts off and start.
Sounds like a bad bearing in one of the accessory drives, AC, Power Steering etc. It could be deeper but always start with cheap and work your way unless you know exactly where it is. Stethoscope is defiantly a great thing to own.
Sounds like a bad bearing in one of the accessory drives, AC, Power Steering etc. It could be deeper but always start with cheap and work your way unless you know exactly where it is. Stethoscope is defiantly a great thing to own.
