Ford

Have Ford Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Ford

F-150 FX4: 5.4 liter..the heater fan only runs on high speed

Customer Question
ford pick-up f-150 FX4 5.4...
ford pick-up f-150 FX4 5.4 liter the heater fan only runs on high speed?
Submitted: 8 years ago.Category: Ford
Show More
Show Less
Ask Your Own Ford Question
Answered in 7 minutes by:
8/11/2009
Ford Mechanic: Ford snr master, ASE Certified Technician replied 8 years ago
Ford snr master
Ford snr master, ASE Certified Technician
Category: Ford
Satisfied Customers: 1,809
Experience: 14 years at same Ford dealer,senior master and ASE master certified,hybrid certified,SYNC certified,10 year master's tenure
Verified
if you have a manual climate control system and not the EATC then this is a very common issue on all lines of vehicles, i am fairly certain you have a bad blower resistor. if you want to double check you can jump the brown/white wire at the resistor to the dark blue/ white wire with the fan switch in med-high position( 1 speed lower than high) and see if the blower comes on.
Ford snr master
Ford snr master, ASE Certified Technician
Category: Ford
Satisfied Customers: 1,809
Experience: 14 years at same Ford dealer,senior master and ASE master certified,hybrid certified,SYNC certified,10 year master's tenure
Verified
Ford snr master and 87 other Ford Specialists are ready to help you
Ask your own question now
Customer reply replied 8 years ago
where would I find these wires? do you have some kind of a diagram for this?
Ford Mechanic: Ford snr master, ASE Certified Technician replied 8 years ago
i am unable to upload the diagram because it is in SVG format and isn't supported on this site but i will post a picture of the r&r procedure of the resistor to give you an idea how to get at it and use the wiring colors as mentioned above to test the resistor by bypassing it. if the blower comes on by bypassing the resistor then you have a failed resistor which is very common
Ask Your Own Ford Question
Ford Mechanic: Ford snr master, ASE Certified Technician replied 8 years ago

graphic

Ask Your Own Ford Question
Ford Mechanic: Ford snr master, ASE Certified Technician replied 8 years ago

Removal and Installation

  1. NOTE: The blower motor resistor can be accessed from below the RH side of the instrument panel.

    Disconnect the blower motor resistor electrical connector.
  1. Remove the 2 blower motor resistor screws.
  1. Remove the blower motor resistor.
  1. To install, reverse the removal procedure
Ask Your Own Ford Question
Ford Mechanic: Ford snr master, ASE Certified Technician replied 8 years ago
the resistor is located behind the glovebox and no removal of any other parts is neccesary to access it
Ask Your Own Ford Question
Customer reply replied 8 years ago
when you say the the r/h side of the instrument panel, does that mean the dash over above the glove box or does it mean the r/h hand side of the dash where the driver sits? with this connection disconnected will the blower motor still run?
Ford Mechanic: Ford snr master, ASE Certified Technician replied 8 years ago

the resistor is located behind the glovebox, and either lower the glovebox to access it or reach in from under the dash behind the glove box to access it. it sits above the blower motor towards the passenger seat, i have posted a picture, the angle of the picture is showing the heatercase behind the glovebox, angled from the shifter looking towards glovebox. with the resistor unplugged your HI speed should still work. likely the thermal limiter in the resistor shorted out from overheating,which is fairly normal if the blower is used mostly on low speed settings

Ask Your Own Ford Question
Ford Mechanic: Ford snr master, ASE Certified Technician replied 8 years ago

please let me know if you need additional assistance, though i do believe you have a faulty resistor.

 

 

I hope my assistance helped you and you are satisfied with my suggestion/answer, please leave positive feedback as it will be greatfully apreciated,thank you

Please note, your Deposit doesnt constitute a payment.Please click the ACCEPT BUTTON to complete transaction or ask for more help. Positive feedback is always appreciated. If you feel the answer was able to save you significant time and money Bonuses are welcome and appreciated.

Ask Your Own Ford Question
Customer reply replied 8 years ago
thank you very much.. that was the problem.. Have a nice day!!!
Ford Mechanic: Ford snr master, ASE Certified Technician replied 8 years ago

thank you for updating me, if you are satisfied with my reccomendation please leave positive feedback, i would greatfully apreciate it

Ask Your Own Ford Question
Ask Ford snr master Your Own Question
Ford snr master
Ford snr master
Ford snr master, ASE Certified Technician
Category: Ford
Satisfied Customers: 1,809
1,809 Satisfied Customers
Experience: 14 years at same Ford dealer,senior master and ASE master certified,hybrid certified,SYNC certified,10 year master's tenure

Ford snr master is online now

A new question is answered every 9 seconds

How JustAnswer works:

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

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 DUSA

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.

MollyUSA

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.

BRNew 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 PElm 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.

PhilMarysville, CA

< Previous | Next >

Meet the Experts:

Ron

Ron

ASE Certified Technician

24,320 satisfied customers

23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs

Chris (aka- Moose)

Chris (aka- Moose)

Technician

28,139 satisfied customers

16 years experience

John Mc

John Mc

Ford Technician

5,495 satisfied customers

19 years Ford Lincoln Mercury experience

Chuck

Chuck

ASE Certified Technician

1,685 satisfied customers

33 Years Experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance

Cam

Cam

Journeyman Automotive Technician

10 satisfied customers

GM Grand Master Technician 2007. 14 years Automotive experience.

Richard

Richard

ASE Certified Technician

1,524 satisfied customers

12 years at a Ford Lincoln/Mercury and Jaguar dealer as a technician and shop foreman.

Mike V.

Mike V.

Auto Service Technician

1,380 satisfied customers

25 years experience on all makes and models, Licensed NYS Inspector.

< Previous | Next >

Related Ford Questions
1996 e350 blower motor has been replaced but new one is not
1996 e350 blower motor has been replaced but new one is not working. Getting 11.96 volts with key in off position … read more
Christopher Jirak
Christopher Jirak
Automotive Diesel Technology
14 satisfied customers
I need to change the heater blower motor switch on my 2002
I need to change the heater blower motor switch on my 2002 e250. what is the trick to remove the dash panel (looks like 1 piece) above engine cover to and around instrument cluster… read more
Randall
Randall
Auto Technician / Consultant
Vocational, Technical or Trade Scho
69 satisfied customers
Blower motor will not change speeds and the heat only warms
Blower motor will not change speeds and the heat only warms on the passenger side … read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
Changing blower motor on 2009 F250 super duty diesel. I'm at
changing blower motor on 2009 F250 super duty diesel. I'm at the motor. How do you get the motor loose? … read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
2007 ford E150 with a 4.6liter, heater blower motor turns
2007 ford E150 with a 4.6liter, heater blower motor turns very slow regardless of setting. There is power going to the motor, I bought a new motor and connected it to plug and it ran the same so didn'… read more
Edward Clayton
Edward Clayton
Associate Degree
1,033 satisfied customers
Need to replace rear blower motor and resistor on 07
need to replace rear blower motor and resistor on 07 expedition el … read more
Mechanic01
Mechanic01
1,724 satisfied customers
2010 f 150 blower motor runs ,then fizzles out. Replaced
2010 f 150 blower motor runs ,then fizzles out. Replaced blower resistor , no change … read more
Gabriel Grey
Gabriel Grey
Master Service Technician
Associates
378 satisfied customers
2002 ford e 350 blower not working. changed the blower motor
2002 ford e 350 blower not working. changed the blower motor resistor yesterday. still not working … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
My blower motor will only work on high. New blower motor.
My blower motor will only work on high. New blower motor. The old one was burnt out. But now it will only work on high. What are my testing procedures… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
24,320 satisfied customers
Blower motor not working. 225,000 miles automatic. 2008.
blower motor not working JA: How many miles are on the car? Is it an automatic or a manual transmission? Customer: 225,000 miles automatic JA: What year is your 225? Customer: 2008 JA: Are you fixing … read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
Blower motor resistor. 90k. 96 ford contour gl. Have the
have the resistor, but hard to tell if it justs pops out of the heater? cant see its under the dash.… read more
Ron Z.
Ron Z.
Vocational, Technical or Trade Scho
2 satisfied customers
The blower motor on 2009 F150 w/dual control worked at low
the blower motor on 2009 F150 w/dual control worked at low speed only, replaced resistor, now manual blower speed control works but when put on auto it shuts down … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
4,420 satisfied customers
Blower motor isn't working. I've checked all fused, Relay,
Blower motor isn't working. I've checked all fused, Relay, Replaced the blower motor resistor and Blower Motor and it still doesn't work. I measured the voltage across the two points on the blower mot… read more
roy
roy
Associate Degree
3 satisfied customers
BLOWER MOTOR ON WITH IGNITION SWITCH IN OFF POSITION,
BLOWER MOTOR ON WITH IGNITION SWITCH IN OFF POSITION, REPLACED IGNITION SWITCH- PULLED FUSE 20 AND 21 AND GEM AND STILL RUNS..... … read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
2012 mustang. Blower motor runs for a little while and then
2012 mustang. Blower motor runs for a little while and then slowly dies. It's like it loses power over a minute or two. Sometimes it surges without completely dying. After it dies, it won;t come back … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
Just replaced blower motor on a 2002 F350 and getting no air
Just replaced blower motor on a 2002 F350 and getting no air movement out of the vents at all checked for any obstruction and did not see anything I haven't found any vacuum lines that are disconnecte… read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
Blower motor won't work, checked fuses and replaced
Blower motor won't work, checked fuses and replaced resistor … read more
Randall
Randall
Auto Technician / Consultant
Vocational, Technical or Trade Scho
69 satisfied customers
My 2007 Navigator EATC blower motor runs constantly on high
Hi Richard. My 2007 Navigator EATC blower motor runs constantly on high speed whenever engine is running. Temperature control seems to work perfectly as heat and AC operate as they should. Using the o… read more
davehop
davehop
Diagnostic Technician
Ford Master Certified Technician
1,171 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x