Question about 2004 Chevrolet TrailBlazer

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I have a 2004 Chevrolet Trailblazer. How do you get the clutch off of the waterpump?

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You need to turn the big nut counter clockwise. its not a bad job.

Posted on Nov 11, 2010


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How to replace a waterpump on a 2004 chevy trailblazer

Go to and do a search on water pump replacement. There are several good threads on the subject, some with pictures.

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Remove fan clutch

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Jan 13, 2010 | 2004 Chevrolet TrailBlazer

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Cant figure out how to take the fan clutch of a 2004 chevy Trailblazer

You will need a special wrench that is thin. With the belt still on hit the end of the wrench with a dead blow hammer. Some fan clutches are reverse thread.

Oct 25, 2009 | 2004 Chevrolet TrailBlazer

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Loss of power on acceleration with my 2004 trailblazer


I had a similar problem. It was my waterpump. I got lucky and was close to dealersip, so no major damage. Before it failed (about three months before) I noticed the decline in acceleration, dealership missed diagnosing the problem twice. They finally figured it out, when it failed and started clunking in the truck. Was an expensive fix but not as bad as destroying the motor.

Get the water pump checked asap. they changed an air line valve connector thing first which did not fix the problem.

Also, I had a fan belt changed just before the water pump failed. The new fan belt put too much pressure on the failing water pump, causing it to crash and burn about one week after the belt change.

Hope this helps you.

Jul 04, 2009 | 2004 Chevrolet TrailBlazer

1 Answer

Fac clutch doesn't comefree

I cant remember counter or clock wise but doesnt matter I believe it comes off counter clock. The easy way is if you have a air compressor and a air hammer. Take the flat bit place on large nut lightly hit the nut until it breaks free. If not take the largest wrench that fits good and safely tap it hard with a hammer , fast hard blow will break it loose. hope this helps

May 25, 2009 | 2005 Chevrolet TrailBlazer

1 Answer

Replaced waterpump and now check engine code for fan clutch is on

known product concern for fan clutch you could not have caused it have replaced many fan clutches

Mar 21, 2009 | 2002 Chevrolet TrailBlazer

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