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2002 chevy trailblazer engine revving noise

Engine makes revving noise randomly

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  • Cars & Trucks Master
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The revving sound could be coming from the radiator fan clutch with the engine OFF try turning fan should have slight resistance and smooth

Posted on Apr 19, 2014

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Posted on Jan 02, 2017

  • 30 Answers

SOURCE: 2002 Chevy Trailblazer Engine Codes

This is actually an easy swap out. Remove the electrical connection, remove the retaining bolt and pull out old one. I believe the sensor is located in the front passenger side of the engine on this particular model.

Posted on Aug 16, 2008

  • 1 Answer

SOURCE: 2002 Chevy TrailBlazer Service Engine

This one is easy. The clutch fan is not disengaging. Mine does the same thing after it has idled a while but then will release (wind noise stops) after getting up to speed.

Posted on Sep 02, 2008

tripletauto
  • 1450 Answers

SOURCE: 2002Chevy trailblazer engine cuts off when heater & ac is on

remove the airintake boot and clean throttle butterfly with a rag and carb cleaner

Posted on Dec 03, 2008

  • 4 Answers

SOURCE: 2002 chevy trailblazer has rough idle

it could be an o2 sensor. it could also just need a tune up

Posted on Mar 15, 2009

  • 1565 Answers

SOURCE: 2002 Chevy Trailblazer, brake lights won't go off

check your brake light switch. It may be stuck on. it is under the dash. a button on the switch touches the brake lever to activate the brake lights.

Posted on Nov 10, 2010

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Rattling noise in engine of my 2002 chevy trailblzer step on gas engine stumbles


Service engine light on? Where is noise coming from? What part of the engine? May have a reduced power condition caused by mechanical problem or emissions issue like misfire. More information and I may be able to help.

Apr 09, 2013 | 2002 Chevrolet TrailBlazer

1 Answer

I have a 2003 chevy trailblazer. There is a tapping noise at startup when the engine is cold and it goes away when the vehicle gets warm. What do you think it could be?


There was a recall on the 2002 and some 2003 made in late 2002. Gm was replacing engines under this recall. If your not covered under this warr, check to see if there are small chips or metal in the intake. That engine was known for cracking cylinder sleeves .

Aug 21, 2011 | 2003 Chevrolet Trailblazer Ext

1 Answer

My 2002 Chevy Trailblazer started acting like it is having trouble getting air. It is not missing and transmission is shifting correctly but is seems like is is struggling for air. Engine sounds like it is...


Does it sound like an airplane or a big rig when you give it gas? If I'm reading you right here, sounds like your fan clutch is stuck engaged. Need to replace the fan clutch, this is a common problem for TB's.

Jan 26, 2011 | 2002 Chevrolet TrailBlazer

2 Answers

Locate camshaft sensor 2002 chevy trailblazer


Assuming you have a 4.2L engine here is the location.
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Hope this helps out,
if so please rate my answers.
Brett

Mar 19, 2009 | 2002 Chevrolet TrailBlazer

2 Answers

Where is oil pump on a tril blazes 2002


Your oil pump is mounted to the underside of your engine block, inside the oil pan. To say it is buried would be an understatement. Depending on clearance to remove your oil pan, you may have to pull the engine to gain access.

Feb 03, 2009 | 2002 Chevrolet TrailBlazer

1 Answer

2002 Chevy Trailblazer Ltz won't start no lights


make sure the battery termanals are tight,, give it a jump and see, can't hurt.

Dec 31, 2008 | 2002 Chevrolet TrailBlazer

1 Answer

2002 Chevy TrailBlazer Service Engine light is on. The car gives off a loud wind sound when pressing the accelerator. The engine runs smooth but less power.


This one is easy. The clutch fan is not disengaging. Mine does the same thing after it has idled a while but then will release (wind noise stops) after getting up to speed.

Jul 21, 2008 | 2002 Chevrolet TrailBlazer

1 Answer

2002 Chevy Trailblazer Engine Codes


This is actually an easy swap out. Remove the electrical connection, remove the retaining bolt and pull out old one. I believe the sensor is located in the front passenger side of the engine on this particular model.

Jul 06, 2008 | 2002 Chevrolet TrailBlazer

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