Question about 2001 GMC Jimmy

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Blower motor does not work on high

Replaced relay and can hear it clicking when I put the switch on high

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  • 159 Answers

Faulty blower motor resistor usually located near blower motor

Posted on Dec 29, 2013

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

carfreak1217
  • 109 Answers

SOURCE: 1999 yukon denali front blower motor not working

Check Fuse #3 in the under hood fuse block it is the only common connection I can make.

Posted on Jun 28, 2009

emissionwiz
  • 75797 Answers

SOURCE: 1995 GMC Sierra Ext Cab

You need to replace the blower motor resistor

Posted on Sep 23, 2008

justuscc
  • 360 Answers

SOURCE: my blower motor only works on high

its the blower resistor next to the blower motor rate as fixya thanks justuscc

Posted on Oct 22, 2008

emissionwiz
  • 75797 Answers

SOURCE: blower motor not working. replaced blower motor,

did you replace the speed control resistor near the blower motor?

Posted on Sep 28, 2009

ministock48
  • 258 Answers

SOURCE: 1996 GMC blower motor only works on high speed.

more than likely yes the resistor

Posted on Oct 22, 2009

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1 Answer

2006. I switched the vents from front to feet and defrost and turned it up all the way and it stopped blowing. Why?


That is the blower motor relay, probably . You have all speeds but high ? High speed has a direct path to the blower motor through a high blow relay . All other speeds go through the blower motor resistor assembly . This relay is part of the blower motor resistor assembly > That is if you have manual HVAC system .
Blower Motor Resistor Assembly (CJ3)
Under the right side of the I/P mounted to the HVAC box next to the blower motor.

Dec 01, 2015 | GMC Sierra Cars & Trucks

3 Answers

I have a 2000 chevy blazer the blower works on 1 2 and 3 but it wont work on 4 I changed the dash switch and the resister but that didn't work


There is a relay in the under hood fuse box , blower motor relay .When switched to high it energizes the relay allowing power from the HVAC fuse /30 amp to flow direct to the blower motor. from pin 30 to pin 87 , if you look on the side of the relay there is a diagram .For all other speeds the current flows from the switch through the resistor through pin 87a to pin 30 on to the blower motor ! Check the HVAC fuse in the under hood fuse block .IF the fuse is good check for continuity between the fuse side with out B+ that means pulling the fuse and using a volt meter to see which side has power and checking the side that doesn't have power to pin 87 at the relay socket ! Probably a bad fuse or stuck relay . Pull that relay and try a different one. You can get wiring diagram at www.bbbind.com click on technical information ,then click on Technical Service Bulletins & Wiring Diagrams .then on next page go down to the bottom and click on I agree . next page click wiring diagrams ,then just fill in you vehicle information .then HVAC system . click on diagram, then you will see 7 links , click on the 5th one and that's the diagram for the blower motor circuit !

Jan 11, 2015 | 2000 Chevrolet Blazer

1 Answer

My heat in my cutlass supreme turns off when i switch the switch to high but works on low


Three possibilities. AND all you can do yourself!
1. Hi/Low Blower Relay. However these usually fail on low and works on High.
2. Blower Control Switch.
3. Blower Motor Resistor.
If you do not have one: buy a Voltmeter, available for $6 at Walmart.
If you do not have one: buy a Haynes or Chilton Manual at most auto parts stores for $20-$25 dollars. I say this because you are obviously going to keep this vehicle. It will have most of the information with pictures to assist you.
Quickest way to determine which one?
Finding the Resistor....Go on line to autozone.com or advanceauto.com. Answer the questions on year, make, model and engine and go to "look up parts" or click on "Replacement Parts".
Pull up the Hi/Low Blower Relay.
Know you know what you are looking for.
This Relay is located near the Blower Motor.
The System goes: Switches, Relay and/or Resistor, Motor.
Unplug the electrical connection from the Switches going to the Relay.
Turn the engine on. Turn the Selector to Low and using a voltmeter, check for voltage coming from the Switch. Turn to High and rechaeck for voltage coming fom the Switch. No voltage on High? The Switch is bad.
Do the same with the Relay to Resistor connection and or Relay/Resistor to Motor connection. Check the Low and the High voltages.
Let me know if this helped or if you have additional information or questions. Feel free to contact me at FixYa.com!

Feb 11, 2010 | 1986 Oldsmobile Cutlass Supreme

2 Answers

My front blower only works on # 4 ( high ) is it the blower motor or the switch ? also, how do i change it ? thanks


If the blower is coming on when you put it on #4 then it is definitely a switch issue. Try replacing the switch.

Oct 05, 2009 | 1999 Nissan Quest

1 Answer

Blower motor does not work at any speed


as you said relay is good,try to check 4 connection of relay,pullout relay,check if there a 12 volts supply,, a 12 volt control by ignition sw.,connection to blower motor, the last connection is to the switch mostly connected to ground.

Feb 15, 2009 | 1999 Dodge Ram 2500 4WD

1 Answer

Blower for heater stopped


Remove the hush panel under the dash and unplug your blower motor turn the knob and see if its getting power. If it is replace the blower motor. If your heater seems to work on high but not the other 4 settings. replace the blower motor resistor and pigtail (same general location as blower motor)

Jan 31, 2009 | 2004 Chevrolet Silverado 2500HD

2 Answers

Replacing heater blower motor


this is not a problem with thw switch or motor. There is a resistor that is mounted inside the dash on the pasenger side that controls the speed of the blwer..these have a tendency to burn up after 10 years or so... replace the resistor, and you will be fine!  http://cgi.ebay.com/ebaymotors/Toyota-Truck-A-C-Heater-Fan-Resistor_W0QQcmdZViewItemQQcategoryZ33548QQihZ016QQitemZ260344846266QQrdZ1QQsspagenameZWDVW#ht_500wt_1230

Dec 23, 2008 | 1984 Toyota Pickup Deluxe

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