Question about Chevrolet TrailBlazer

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03 Trailblazer Blower Resistor connector different from new one? Old has three wire new has 6. Not sure how to go about it.

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The resistor you bought is for manual heating, your three wire is more a module then a resistor. you need the module for the automatic heating system, automatic heating has a digital display and manual has sliders.

Posted on Oct 07, 2009

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Make sure they gave you the right part first. Should have been about $40.00 - $60.00 retail Depending on where you got it. Sounds like you got the wrong part.I would take the old one in to where you got it with the new one and show them.

Posted on Oct 07, 2009

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1 Answer

Blowe switch does not work


OK, if it's not working on a certain speed or even all speeds, replace your blower motor resistor located under or behind the glovebox. Very common problem. Check the male ribbon connector, make sure it's not fried, otherwise you'll need to buy a pigtail and splice a new connector in. Lower the glovebox door to access connector, and remove plastic kick piece below that to access the resistor from below. Make sure you tell the autoparts store you have manual controls as there is a difference in the resistor versus the auto climate control.

Apr 02, 2014 | 2004 Chevrolet TrailBlazer

Tip

How To Replace A Blower Motor In A 2005 Chevy Trailblazer


Under the passenger side of the dashboard, remove the three 7mm bolts holding the lower plastic cover from the dashboard. Drop down the plastic cover and you will see a square box and 2 or 3 plugs holding to the cover. Unbolt the control box mounted to that cover and the 3 harnesses of wires attached to it, and move them up and out of the way. Look up towards the front corner, the motor is bolted up into the heater box. There are 3 small metric bolts, 4.5mm, I believe, remove those bolts, disconnect the electrical connection to the motor and remove motor. Check the motor electrical connector for any burnt over overheated wires. Alot of these trucks' original connector plug had too small of wiring, causing the power wire to get hot and melt the wire insulation and the plug it's self. The 7 wire plug from the Chevy Dealership is $67.00. You'll need to cut off the old plug and use the connectors supplied with the new plug to replace the old plug. I have seen the blower motor cut off going over a bump, and then come back on after hitting another bump, due to the fact that the individual connector gets hot and melts into the plug. You may also want to look at the blower motor resistor which is mounted right next to the blower motor, sometimes the blower motor resistor will go out altogether, not powering the blower motor, or not allowing the motor to run at a selected speed.

on Mar 09, 2010 | Chevrolet TrailBlazer Cars & Trucks

1 Answer

How do you replace blower motor resistor when the plugs are different?


Take it back & if you have to go, to a dealer & give them you rVin# & get the correct part

May 22, 2012 | Chevrolet TrailBlazer Cars & Trucks

1 Answer

2005 trailblazer, started truck this morning, windows were foggy, turned on defrost but the fan was not blowing, could feel a little air flow but was not blowing on any # cycle 1-5. What might be wrong


Hello: Go under the dash, passenger side. Remove under dash cover. Look straight ahead, you will see the blower motor with 2 wires. follow these wires to the blower motor model, on the module you will see a connector w/6 wires, these wires could be burnt, if so then the module may also be burned. You can get a repair harness at a GM dealer, You will have to splice it in. Make sure you line up the new connector wit the old so you get the wires in the proper order. If the module is burnt then you will have to replace it also. The blower motor is usually ok unless it is noisy or locked up. This is a common problem.

Jun 29, 2011 | 2005 Chevrolet TrailBlazer

1 Answer

The heater blower stopped working tested the resister and it has power, how can I get to the switch that controls the different speeds for the blower. I'm thinking that's the problem


the issue is in the resistor check the poer and ground at the blower motor its self it should have power in all speeds.even if the motors not running..if thers power at the motor give the motor a tap..or check the under hood fuse..its not a resistor its an actual blower module...and extreamly common also check the resistor wires and connector they are known to melt inside the connector...if ok relace the resistor....

Apr 18, 2011 | 2004 Chevrolet TrailBlazer

1 Answer

2003 trailblazer back air stays on after the truck is turned off


hi, there is a technical service bulletin published by general motors about these trailblazers and this problem, it is very common to have this problem if you own one of these. the rear a/c module is located on the passenger side in the very back underneath the plastics and bezels in the back. there is a blower resistor module that controls the fan speeds and recieves input from the control panel that gets too hot and melts the plastic surrounding the wiring connector and allows the terminal inside the connector to short the fan control wire to battery power. if this is the case, you will have to replace the resistor module, the wiring and connector, and sometimes the blower motor. you should contact you local gm/chevy dealer for parts though, they have the wiring pigtail so you replace just the connector end, and the new style resistor module, and if i remeber right, i think there is a air shield in the kit to install to improve air flow inside across the resistor to help cool it down. the blower motor when running produces the cooling ability for the resistor, if there was no airflow across the resistor, it would overheat almost immeadiatly. take the rear plastics off and the rear seat out, and have a look, you should be able to find this problem pretty quickly.

Jun 23, 2010 | 2003 Chevrolet TrailBlazer

2 Answers

Heater control fan only works on speed 5. Removed heater control, what does the resistor look like? I'm asuming it's not a regular electronic resistor right?


Your looking for the blower resistor. Its on the passenger side under the dash. Two of the wires go the the blower motor. The wire connector and the resistor can burn or corrode. The replacement is easy two screws hold the resistor in and the connector can be replace with **** connectors.

Dec 12, 2009 | 2002 Chevrolet TrailBlazer

2 Answers

2003 Chevy Trailblazer my AC blower won't turn off!


you have a short to power which will cause it to stay on constantly check your blower motor resistor pack to ensure that it is working and check the wires going to the blower to make sure you have a power and a ground

Jun 29, 2009 | 2004 Chevrolet TrailBlazer

3 Answers

BLOWER FAN NOT WORKING PROPERLY


I had the same problem change your blower motor resistor.

Nov 13, 2008 | 2006 Chevrolet Trailblazer

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