How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Carhelp4u Your Own Question

Carhelp4u
Carhelp4u, ASE CERTIFIED TECH
Category: Chevy
Satisfied Customers: 5203
Experience:  ASE CERTIFICATION
Type Your Chevy Question Here...
Carhelp4u is online now
A new question is answered every 9 seconds

The fan stopped working in my 05 escalade. No air comes out

Resolved Question:

The fan stopped working in my '05 escalade. No air comes out with A/C or heat on. The fuses look good, where is the fan and how hard is it to replace?
Submitted: 5 years ago.
Category: Chevy
Expert:  Carhelp4u replied 5 years ago.

This is not a simple failure on this model. If you can verify voltage and ground at the motor, yes this would be a problem with the motor itself. There are other components such as the blower motor control module, and the HVAC controller that can also cause for this problem and simple wire tests will not diagnose these items. Here is where the blower motor is located. Here is what you will need to do to access the blower motor. Let me know if you have any questions on testing for this problem! Good luck!


Object Number: 476821  Size: SH

  • If equipped, remove the underdash sound insulator panel.
  • Remove the blower motor insulating cover screws.
  • Disconnect the electrical connector from the blower motor.
  • Remove the blower motor insulating cover.
    Object Number: 382501  Size: SH

  • Pull the retaining tab down while turning the blower motor counterclockwise in order to disengage the blower motor from the heater/ventilation module.
    Object Number: 382496  Size: SH
  • Customer: replied 5 years ago.
    Thanks for a quick answer, I didn't really get much at all out of that picture of where the fan is located though. Do you have any experience replacing the motor in this model? If so would I start taking apart the center console? or plastic from under the steering wheel? Also if you have any of the wiring diagram of the system. The complete wiring diagram would be awesome, but even if you just know what each pin on the connector going to the motor would help. Or troubleshooting steps would also be awesome.
    Expert:  Carhelp4u replied 5 years ago.
    No problem. The actual placement of the blower motor is under the passenger side dash. If you have the underdash sound insulator, you must drop that to get to the motor. I can get you a wiring schematic, but I will need to know if this has auto or manual climate control?
    Customer: replied 5 years ago.

    auto, didn't know there was a manual option on escalades.

     

    You enter a temp and press auto, the A/C and heat both turn on and adjust how high it is on based on the temp

    Expert:  Carhelp4u replied 5 years ago.

    Actually I did not either, but they list that in the manual. That may also cover the chevy and gmc models too. I just figured I would ask to be certain. Here is a schematic of the blower motor control. Keep in mind that the blower speed control from the hvac control to the blower motor control module utilizes a voltage signal to control the blower motor. The correct way to verify this requires you to use a scan tool to verify the speed control parameter from the hvac control. Then you simply need to test that wire from the blower motor control processor to the hvac control for high resistance. Feel free to contact me with any further questions! Good luck!

    Object Number:(NNN) NNN-NNNN Size: FS

    Customer: replied 5 years ago.
    Thanks for all the help, one more thing. Where is the HVAC control? and simply putting +12 DC and GND directly on the fan will make the fan move, right? and is the blower control mounted right there connected to the blower. Actually that was 4 things.
    Customer: replied 5 years ago.
    Sorry for a million questions, I'll hit accept right after this. I just noticed that if I turn on the rear air from the driver seat nothing happens. If you turn on the rear air from the rear then everything works fine. What is different from the front to the back? Are they seperate HVAC controls? or seperate fans?
    Expert:  Carhelp4u replied 5 years ago.
    Sorry for the delay. The hvac control is the actual dash mounted display and so on. The blower control module is located right next to the blower motor. The rear system does have a seperate blower motor and blower motor control processor. Let me know if you have further questions!
    Carhelp4u, ASE CERTIFIED TECH
    Category: Chevy
    Satisfied Customers: 5203
    Experience: ASE CERTIFICATION
    Carhelp4u and 4 other Chevy Specialists are ready to help you

    JustAnswer in the News:

     
     
     
    Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
    JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
    Web sites like justanswer.com/legal
    ...leave nothing to chance.
    Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
    Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
    I will tell you that...the things you have to go through to be an Expert are quite rigorous.
     
     
     

    What Customers are Saying:

     
     
     
    • I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money. Todd L Rochester NY
    < Last | Next >
    • I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money. Todd L Rochester NY
    • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
    • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
    • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
    • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
    • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
    • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
     
     
     

    Meet The Experts:

     
     
     
    • Tim's Auto Repair

      mechanic

      Satisfied Customers:

      7641
      Have owned a repair shop for 25 yrs.
    < Last | Next >
    • http://ww2.justanswer.com/uploads/TI/tim37857/2011-10-28_23053_S6301814.64x64.JPG Tim's Auto Repair's Avatar

      Tim's Auto Repair

      mechanic

      Satisfied Customers:

      7641
      Have owned a repair shop for 25 yrs.
    • http://ww2.justanswer.com/uploads/DT/dt69nova/2012-6-15_234154_pic1.64x64.jpg Dave Nova's Avatar

      Dave Nova

      Chevrolet Technician

      Satisfied Customers:

      6870
      ASE Master Certification. GM World Class Certification
    • http://ww2.justanswer.com/uploads/ggrote1/2009-06-27_031011_me.jpg Gary's Avatar

      Gary

      Chevy Technician

      Satisfied Customers:

      5404
      15 years GM master tech
    • http://ww2.justanswer.com/uploads/testedtuff/2009-09-26_170108_pictures.jpg John's Avatar

      John

      Master A.S.E Automotive technician

      Satisfied Customers:

      4071
      A.S.E MasterTechnician A1-A8 w/L1,38 years experience General Motors Master Technician
    • http://ww2.justanswer.com/uploads/RO/rodcuda/2011-7-25_224114_Donhoff1.64x64.JPG Neal's Avatar

      Neal

      Chevy Mechanic

      Satisfied Customers:

      2306
      Shop Owner and Mechanic on multiple makes.
    • http://ww2.justanswer.com/uploads/goodwrench9124/2008-11-09_220838_dscf0007.jpg goodwrench9124's Avatar

      goodwrench9124

      ASE Certified Technician

      Satisfied Customers:

      2041
      Ase Master Certified, GM Master Certified Tech. Awarded GM Top performer, Hybrid certified
    • http://ww2.justanswer.com/uploads/DR/drivefast1971/2012-1-12_172422_0009051tQKh.64x64.jpg Ron Z.'s Avatar

      Ron Z.

      - Chevy Tech -

      Satisfied Customers:

      1912
      18+yrs experience. State Inspector and Chevy Diagnostics