2002 Chevrolet TrailBlazer coolant fan overspeed

4 messages, Last post on Aug 04, 2009 at 8:49 PM

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#1 of 4 2002 chevytralblazer coolant fan overspeed by mykle315 Aug 03, 2009 (4:36 pm)
my 02 trailblazer coolant fan is making a loud roaring noise on acceleration.my service engine light is on and i had it read and its comming up as coolant fan overspeed.any ideas what the problem might be. Replies to this message: burdawg (Aug 03, 2009 8:23 pm) mykle315 (Aug 04, 2009 1:50 pm) burdawg (Aug 04, 2009 8:49 pm)
#2 of 4 Re: 2002 chevytralblazer coolant fan overspeed [mykle315] by burdawg Aug 03, 2009 (8:23 pm)
Replying to: mykle315 (Aug 03, 2009 4:36 pm) The viscous clutch has probably gone out, causing the fan to run at high speed all the time. Replies to this message: mykle315 (Aug 04, 2009 1:50 pm) burdawg (Aug 04, 2009 8:49 pm)
#3 of 4 Re: 2002 chevytralblazer coolant fan overspeed [burdawg] by mykle315 Aug 04, 2009 (1:50 pm)
Replying to: burdawg (Aug 03, 2009 8:23 pm) thank you for ur reply.do u know what this special wrench that i need is Replies to this message: burdawg (Aug 04, 2009 8:49 pm)
#4 of 4 Re: 2002 chevytralblazer coolant fan overspeed [mykle315] by burdawg Aug 04, 2009 (8:49 pm)
Replying to: mykle315 (Aug 04, 2009 1:50 pm) No, sorry, I haven't had to change one myself.