Loud engine or fan noise?

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Sep 21, 2010 | 07:35 PM

brock2007

Thread Starter

New Member

Joined: Sep 2010

Posts: 2

Loud engine or fan noise?

When I start driving my engine sounds very loud, I can tell a loss of horsepower in the pedal. What causes this and how can i fix it? 2001 4.3l V6 68,000mi. It eventually goes away once i get up to speed.

Sep 21, 2010 | 08:45 PM

Denominator

Starting Member

Joined: May 2009

Posts: 186

From: Norway

If it's anything like my 1995 blazer, it's the fan clutch that needs to warm up,I think. It's like a loud wining nois? That follows the RPM's?

That is the way it's suppose to be

Last edited by Denominator; Sep 21, 2010 at 09:45 PM.

Sep 21, 2010 | 09:00 PM

brock2007

Thread Starter

New Member

Joined: Sep 2010

Posts: 2

Its just gotten worse recently, and I just checked it while it was cold and the fan blade moved, so guess I'll just deal with it. Thanks

Sep 21, 2010 | 09:16 PM

warthogdriver

BF Veteran

Joined: Aug 2009

Posts: 2,785

From: Bay City, Michigan

i know it doesnt help but mine does it to....sounds like i am ready for launch and then it goes away when warm.

Sep 21, 2010 | 09:42 PM

Denominator

Starting Member

Joined: May 2009

Posts: 186

From: Norway

Colder outside maybe? Takes longer time to warm up?

The fan should move when cold. If you give it a good spin it should spin half/one round or something like that before it comes to a stop.