2005 GMC Envoy 2005 GMC Envoy fan noise

GILLAV

MEMBER
2005 GMC ENVOY

Noises problem
2005 GMC Envoy 6 cyl Two Wheel Drive Automatic

My truck have a stronge fan noise and I want to ask you, what I need to check to fix this fan noise? And How Can I fix it, Thank You in advance for your response.

3 Replies

JACOBANDNICKOLAS

MECHANIC
109,747 POSTS

Does your vehicle have a fan clutch attached to the waterpump or electric fans?

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Wednesday, July 1st, 2009 AT 8:51 PM

GILLAV

MEMBER
2 POSTS

The fan clutch attached to the waterpump.
I repleaced the fan clutch but the stronge noise continue. I'm thinking is the waterpump, but how can I make sure of this, Thank You.

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Thursday, July 2nd, 2009 AT 9:14 AM

JACOBANDNICKOLAS

MECHANIC
109,747 POSTS

Usually when a waterpump goes bad, either it will leak coolant from the seap hole, or there will be play in the bearing itself. If you remove the serp belt, check to see if there is any side to side / up and down play from the pulley (which is attached to the pump). Also, with the belt off, check all of the accessories. Spin the alt, waterpump, PS pump. To see if there is any noise. Also, start the engine with the belt off to see if the noise is gone. NOTE: Only allow the engine to run for a few seconds because it will overheat very fast.

Let me know what you find.

Joe

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Thursday, July 2nd, 2009 AT 12:36 PM