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The blower motor speed resistor is burned out.

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Q: Why does blower on 2003 Chevrolet Trailblazer work on 5 but not 1-4?
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Why does a 2003 trailblazer Fan switch not work on first second and third positions?

Could be a bad resistor on blower motor


What causes the heater blower motor in a 2003 Trailblazer to not work in speeds 1-3 but works in speeds 4 and 5?

Probably the blower motor speed resistor is partially burned out.


Rear wiper on Chevrolet trailblazer does not work?

www.trailvoy.com All the answers for your Trailblazer from true enthusiasts!


Why does my 2003 trailblazer blower motor work on and off what could it be?

It can be a few different things but the most common failure is the blower motor resistor. If you visit our enthusiasts forum we can help you track it down quickly. www.trailvoy.com


What would cause a blower to work and all speeds except High in 2002 Chev Trailblazer?

This is more than likely caused by the actual fan switch. As I am English, I have no idea what a Chevrolet Trailblazer is, or what it looks like even, but there are things which are common to all or many vehicles.


Why does only one speed work on blower motor on 2003 Chevy trailblazer?

Its probably starting to burn out. Frequently the fans spin so much and wear out. time for a new one!


The front blower and front windshield wiper of the Chevy trailblazer 04 does not work Why?

If the front blower and the front windshield wiper do not work on a 2004 Chevy Trailblazer, it could be the fault of the relay switches on the blower and the wiper. Also check the fuse box on top of the battery for a multi-function fuse that might be blown.


2003 Trailblazer how do you replace the heating ac control switch replaced blower module and fan still doesn't work HELP?

have you checked fuses and relays? Yes, I actually replaced the blower motor module & that didn't work. The Blower Motor itself spins freely & there doesn't seem to be any electrical issues. Could it be the Blower Motor speed switch??? If so, is that hard to access?


Why does my 2004 trailblazer ac fan only work on high?

The 2004 Chevrolet trailblazer air conditioning fan switch has three settings. The switch can malfunction, and only work in the high setting.


Why does your blower fan only work on medium speed on your 1972 Chevrolet Blazer?

Blower motor speed resistor is partially burned out.


2004 trailblazer blower motor does not work on 123 settings but works on 4 and 5?

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Why does the blower motor on 2002 trailblazer work on all speeds except the lowest?

More than likely the blower motor resistor pack is bad, although it can also be the switch itself.