Fan turning on and off - Taurus Car Club of America : Ford Taurus Forum
 
LinkBack Thread Tools
post #1 of 6 (permalink) Old 08-13-2018, 03:09 PM Thread Starter
Member
 
Yessong's Avatar
 
Join Date: Apr 2013
Location: Long Island, NY
Chapter: Northeast
Posts: 144
Rep Power: 13
 
Trader Score: 0 reviews
Fan turning on and off

This happens only when in the highest blower setting on my 2010 SEL/AWD. The fan will blow hard and then drop off momentarily and then start up again - it will continue this "dance" till I manually lower the speed - even by one setting - then it blows steady...thoughts on what could be causing this?

There's nothing wrong with me that several days of expensive testing can not prolong.
Yessong is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old 08-13-2018, 06:45 PM
brn
Member
 
brn's Avatar
 
Join Date: Jul 2014
Location: Minnesota
Chapter: Midwest
Year: 2013
Model: Ford Taurus
Engine: 3.5L Ti-VCT V6
Posts: 352
Rep Power: 10
 
Trader Score: 0 reviews
airflow sensor?
brn is offline  
post #3 of 6 (permalink) Old 08-13-2018, 08:17 PM
Member
 
Join Date: May 2018
Posts: 232
Rep Power: 2
 
Trader Score: 0 reviews
Hmm. That's odd. I think it is worth looking at the digital climate control PIDs with forscan. Only other thing I can think of is checking the wiring and the plug on the fan, or it could conceivably be the high winding in the motor has a bad contact in it that opening up when it gets hot. A symptom of a broken wire in the winding is opening up when it gets hot, and then working again when it cools off.

I know that's not a lot of help.
46davis is offline  
 
post #4 of 6 (permalink) Old 08-13-2018, 09:13 PM
Junior Member
 
Join Date: Jul 2018
Location: sd
Chapter: Midwest
Year: 2003
Model: Mercury Sable Wagon
Engine: 3.0L 24v Duratec V6
Posts: 7
Rep Power: 0
 
Garage
Trader Score: 0 reviews
Could just be a problem with the blower speed motor control module. Could be a loose wire connection.
soulscourge is offline  
post #5 of 6 (permalink) Old 10-10-2018, 01:25 PM Thread Starter
Member
 
Yessong's Avatar
 
Join Date: Apr 2013
Location: Long Island, NY
Chapter: Northeast
Posts: 144
Rep Power: 13
 
Trader Score: 0 reviews
Sounds like...no matter what this could be a dealer-fix .....Blech

There's nothing wrong with me that several days of expensive testing can not prolong.
Yessong is offline  
post #6 of 6 (permalink) Old 10-10-2018, 03:19 PM
Technical Advisor
 
Join Date: Feb 2007
Location: Milwaukee, WI
Chapter: Midwest
Year: 2005
Model: Ford Taurus
Engine: 3.0L 24v Duratec V6
Posts: 7,516
Rep Power: 86
     
Trader Score: 0 reviews
Quote:
Originally Posted by 46davis View Post
Hmm. That's odd. I think it is worth looking at the digital climate control PIDs with forscan. Only other thing I can think of is checking the wiring and the plug on the fan, or it could conceivably be the high winding in the motor has a bad contact in it that opening up when it gets hot. A symptom of a broken wire in the winding is opening up when it gets hot, and then working again when it cools off.

I know that's not a lot of help.
Agree the first step is checking for codes with Forscan.

Blind guess on the problem..... on high, blower draws too much current due to dry bushings, shorted windings, etc, the control module senses this overcurrent and reduces blower current (i.e., lowers the PWM duty cycle), thus reducing blower speed. I would assume a blower overcurrent detected would set a code that Forscan will display.

05 Taurus SEL Duratec - my daily driver
04 Taurus SES Duratec - wifes car - TOTALED
06 Taurus SE Vulcan - wifes new ride
95 Taurus GL Vulcan winter car
Toy #1 - 86 Tbird 5.0 (original owner) - LOTS of mods
Toy #2 - 88 Tbird Turbo Coupe - LOTS of mods
67 Honda 450 Super Sport - completely customized
Jeff K is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Taurus Car Club of America : Ford Taurus Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome