Getting a loud sound when engine is running

CHRIS.COCCO

MEMBER
1989 CHEVROLET TRUCK
200,000 MILES

1989 Chevy 1500 4x4 350v8 has a loud screech/chirp, even with serpentine belt removed. I replaced the fan clutch, no change. Probably the water pump?

Wednesday, October 5th, 2011 AT 1:01 AM

5 Replies

JACOBANDNICKOLAS

MECHANIC
108,179 POSTS

Can you tell an aprox area it is coming from?

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Wednesday, October 5th, 2011 AT 1:02 AM

CHRIS.COCCO

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3 POSTS

It's difficult to tell, quite loud, I'm afraid to leave running too long, but it sounds like the front, maybe underneath. I can try it again tomorrow, and try to get a better idea.

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Wednesday, October 5th, 2011 AT 1:19 AM

JACOBANDNICKOLAS

MECHANIC
108,179 POSTS

Let me know if you can pick out any specifics. This is a tough one. Also, if it does it, really try to locate where the noise is, engine area, transmission area. I'm questioning a couple things. Also, have you every noticed any strange sounds when the starter is engaged? Let me know tomorrow.

Joe

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Wednesday, October 5th, 2011 AT 2:24 AM

CHRIS.COCCO

MEMBER
3 POSTS

I finally let it run long enough to figure out the noise was coming from the front of the engine. Changed the water pump, and I'm good again.

Thanks for your help. Sometimes it's good to have someone to bounce ideas off of.

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Thursday, October 6th, 2011 AT 10:55 AM

JACOBANDNICKOLAS