Problem Reports
Chevrolet Trailblazer
Report: Cooling Fan Clutch May Fail Causing Noise and Check Engine Light
Chevrolet Trailblazer Problem
Model Years Affected: 2002, 2003, 2004, 2005, 2006
Engine Affected: 4.2L 6 Cylinder
Average Mileage: 85,363 mi (12,000 mi - 180,000 mi)
The cooling fan clutch may fail causing excessive fan noise and/or the Check Engine Light to illuminate.
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Report #1bk3994, 2003 Chevrolet Trailblazer, 4.2L 6 Cylinder, 180,000 mi
Rookiebought new clutch fan at autozone for $200. installed with my son in about 2.5 hrs. dealer wanted $800 for same job.
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Report #2Visitor, 2005 Chevrolet Trailblazer, 4.2L 6 Cylinder, 90,000 mi
Clutch fan went out, cost about 125 to repair
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Report #3Visitor, 2002 Chevrolet Trailblazer, 55,000 mi
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Report #4
Rookieit sounds like a truck fan
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Report #5getzhair, 2004 Chevrolet Trailblazer, 4.2L 6 Cylinder, 72,000 mi
Rookieservice engine light on, no heat no air no blower, idles and wants to die at stop light.
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Report #6Visitor, 2002 Chevrolet Trailblazer, 116,000 mi
There is a loud humming noise from under hood-- shakes and vibrates when started up and at stoplights... transmission feels like it was slipping, would go to 3,000-3,500 rpms before shifting gears, terrible gas millage--
Found out it was the electronic clutch fan-- dealership wanted $400 for part, with 3 hours for labor,
found the part at autozone for $199, saved a couple hundred bucks---vehicle runs alot better and gas millage has gotten alot betterFlag ThisLike0 -
Report #7Visitor, 2003 Chevrolet Trailblazer, 4.2L 6 Cylinder, 76,000 mi
Engine light - load fan noise
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Report #8Visitor, 2003 Chevrolet Trailblazer, 4.2L 6 Cylinder, 110,000 mi
Vehicle sounded like an airplane taking off when RPM was increased. Had just had water pump replaced due to bad bearings, making the fan wobble. Less than 100 miles later, fan clutch failed in the "on" position and would not disengage. Had to replace fan clutch at about $450.
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Report #9sticboy22, 2002 Chevrolet Trailblazer, 29,000 mi
Rookiefix under warrenty
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Report #10Visitor, 2003 Chevrolet Trailblazer, 4.2L 6 Cylinder, 86,000 mi
I fixed both issues by cleaning the electric clutch connector on top of the radiator
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Report #11Visitor, 2006 Chevrolet Trailblazer, 4.2L 6 Cylinder
It has happened twice in 120,000 miles
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Report #12Visitor, 2003 Chevrolet Trailblazer, 4.2L 6 Cylinder, 12,000 mi
Replaced 3 times in 9 months
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Report #13Visitor, 2005 Chevrolet Trailblazer, 4.2L 6 Cylinder, 113,000 mi
i have a secondary air injection issue and a high fan motor issue
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