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 George H. Your Own Question

George H.
George H., ASE Certified Technician
Category: Ford
Satisfied Customers: 15292
Experience:  ASE Master Tech 15+ Years
Type Your Ford Question Here...
George H. is online now
A new question is answered every 9 seconds

2002 Ford Taurus Blower does not work at all. I have replaced

Customer Question

2002 Ford Taurus: Blower does not work at all. I have replaced resistor. Fuses are not burned out. Is it the blower relay or the blower?
Danny (XXXXX@XXXXXX.XXX)
Submitted: 4 years ago.
Category: Ford
Expert:  George H. replied 4 years ago.

Hello I will help you with your question,

 

There are two fuses for the blower relay, F2.28 and F2.08 so both have to be good to operate the blower.

 

If you have a 12 volt testligh you can make short work of this diagnosis.

 

With the blower motor plugged in backprobe the blower connector at the orange/black wire with the key in the run position and the blower selected on high speed. If you have power there the blower motor, fuses and blower relay are good. The suspect parts would be the resistor or switch if you have power to the orange/black wire. If no power check the pink/white wire and if there is power there the blower motor has failed.

 

Let me know what you find and we can work from there

 

Thanks

 

 

Customer: replied 4 years ago.
what do you mean by backprobe?
Expert:  George H. replied 4 years ago.

By backprobing you insert the tip of the testlight from the harness side of the connector so the blower motor is connected to the wiring harness. In the first test you are measuring voltage through the windings of the blower motor that ensures the motor is not burned open.

 

 

Customer: replied 4 years ago.
no power at either wire. checked both wires plugged in to blower with key on and blower switch on high. also checked unplugged, no power at either wire. i checked testlight on battery to verify that testlight works.
Expert:  George H. replied 4 years ago.

Did you check the fuses?

 

The relay may be the problem as you suspected so we need to move to the relay/fuse block.

 

F2.28 is shown below along with the blower relay,

 

graphic

 

 

Turn the blower on and off (or have a helper do it) and put your finger on the relay to feel if it clicks as the blower is selected. If it does not check the fuse (F2.28)

 

 

Customer: replied 4 years ago.
I already checked the fuses. I do not feel the relay click when turning the blower switch. The blower was only working on high until yesterday, then it totally quit working. I already changed the resistor. The AC compressor will cycle on and off with the AC switch on, but the blower is not blowing on any speed setting.
Expert:  George H. replied 4 years ago.

The relay will work independently of the blower motor so you need to concentrate on the power to the relay coil (F2.28) and the ground provided by the blower switch to the relay.

 

Pull the relay and use your testlight with the key on, you should have power to two of the sockets for the relay pins. When you find those put one lead of the testlight in a powered socket and use the other to find the socket from the remaining two that switches the light on and off with the function switch

 

If both of those (power and ground) work then swap the relay with the acessory relay and see if the blower comes on.

 

 



Edited by George H on 6/3/2010 at 12:22 AM EST
Customer: replied 4 years ago.
I found the two hot sockets for the relay. Pinned in to one hot, could not get light to work via switch at either of the the remaining sockets. Swapped relay and still no blower.
Expert:  George H. replied 4 years ago.

You had the function switched to heat or cool? That is what turns the relay on.

 

If there is not a ground to the relay then the switch has failed and the controls need to be replaced. You said the AC will come on just not blow so the ground to the switch has to be good.

 

To remove the control head click here

 

Once you pull the control head check from the yellow to the black with the relay plugged in and the key on (control head plugged in also. You shoud be able to turn the testlight on and off with the function switch. If you only have the light stay on the function switch has failed.

 

 

Customer: replied 4 years ago.
No, I forgot to turn the function switch on. With the function switch on, the testlight comes on across the relay socket, I could turn the test light on and off using the function switch, but not using the blower switch.
Expert:  George H. replied 4 years ago.

Try the relay in its socket and swap them if needed. You should feel the relay click then power should be at the blower motor. Go back and check at the orange/black wire.

 

 

Customer: replied 4 years ago.
Okay, I can feel the relay click. Still no power at the orange/black. Now, I do have power at the pink/white. Turning the function switch off and on cycles the power at at the pink/white wire, the blower switch postion makes no difference.
Expert:  George H. replied 4 years ago.

If you have power to the pink/white but not the orange/black with the blower plugged in then the blower motor has failed.

 

Likely what happened is that the blower was pulling excess current and burned the resistor open so it would only operate on high then running on high burned the blower open also.

 

 

Click here for the blower replacement procedure

 

You can make a final check, have the blower switch in the high position then use the testlight to check from the pink/white to the orange black and turn it on and off with the function switch. If you can do that the blower is the failed part.

 

 

 

 

George H., ASE Certified Technician
Category: Ford
Satisfied Customers: 15292
Experience: ASE Master Tech 15+ Years
George H. and other Ford Specialists are ready to help you
Customer: replied 4 years ago.
Yes, with the wire plugged in , I can turn the test light on and off with the function switch.
Expert:  George H. replied 4 years ago.

You need to replace the blower then.

 

Please let me know if there is anything else I can do for you

 

Thanks

 

 

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:

 
 
 
  • AlvinC answered a question about my Ford truck that only someone with an in-depth knowledge of his subject would have known what was going on. Rich D USA
< Last | Next >
  • AlvinC answered a question about my Ford truck that only someone with an in-depth knowledge of his subject would have known what was going on. Rich D USA
  • Because of your expertise, you armed me with enough ammunition to win the battle with the dealer. They are installing a fuel filter and fuel pump at no charge to me. Molly USA
  • I needed help with my car on Saturday morning....got a response in 5 minutes, and it was the perfect solution. Thanks again to your service. Jason V. Kirkland, WA
  • I do know, after going though this with JustAnswer, that I can somewhat trust my mechanic but I will always contact you prior to going there. BR New Jersey
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
  • used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future. David L. Richmond, TX
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil Marysville, CA
 
 
 

Meet The Experts:

 
 
 
  • Ron

    ASE Certified Technician

    Satisfied Customers:

    20942
    23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
< Last | Next >
  • http://ww2.justanswer.com/uploads/FO/fordguy4u/2011-12-17_222940_HPIM1257.64x64.JPG Ron's Avatar

    Ron

    ASE Certified Technician

    Satisfied Customers:

    20942
    23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
  • http://ww2.justanswer.com/uploads/MU/muddyford/2012-6-13_1204_1.64x64.png Chris (aka- Moose)'s Avatar

    Chris (aka- Moose)

    Ford Technician

    Satisfied Customers:

    22382
    16 years experience with Ford.
  • http://ww2.justanswer.com/uploads/JM/jmcdo28/2012-2-23_01655_resized.64x64.jpg John Mc's Avatar

    John Mc

    Ford Technician

    Satisfied Customers:

    5493
    19 years Ford Lincoln Mercury experience
  • http://ww2.justanswer.com/uploads/wmarti7/2009-4-18_04332_Avatar.jpg Chuck's Avatar

    Chuck

    ASE Certified Technician

    Satisfied Customers:

    1684
    33 Years Experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance
  • http://ww2.justanswer.com/uploads/CR/crzydrvr00/2013-11-3_12123_246347.64x64.jpg Richard's Avatar

    Richard

    ASE Certified Technician

    Satisfied Customers:

    1518
    12 years at a Ford Lincoln/Mercury and Jaguar dealer as a technician and shop foreman.
  • http://ww2.justanswer.com/uploads/BA/baddad1/2014-4-1_23659_avatar.64x64.jpg Mike V.'s Avatar

    Mike V.

    Auto Service Technician

    Satisfied Customers:

    789
    25 years experience on all makes and models, Licensed NYS Inspector.
  • http://ww2.justanswer.com/uploads/lostrider/2009-9-26_23144_php4VNWAA_c1PM1.jpg lostrider's Avatar

    lostrider

    Ford Technician

    Satisfied Customers:

    2940
    ASE Master Technician, Ford Senior Master Technician,Diesel certified, ASE Master, 22 yrs FORD exp.