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Blower motor not working properly

Tiny
BLUEMAN1
  • MEMBER
  • 2008 JEEP WRANGLER
  • 3.8L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 80,000 MILES
Only runs on low or not at all.
Friday, February 21st, 2020 AT 10:03 AM

8 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon.

The blower resistor is what controls the speeds. I attached a picture and a procedure for you. It is behind the glove box. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Roy
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Friday, February 21st, 2020 AT 10:30 AM
Tiny
BLUEDOG222
  • MEMBER
  • 2 POSTS
  • 2000 JEEP WRANGLER
  • 4 CYL
  • 4WD
  • MANUAL
  • 125,000 MILES
Timeline of Events:

1. Fan Stopped Working. Heat is present, just no blower (At all speeds).
2. Checked fuses, resistor, and relay. ALL 100% Functional. (Checked with good fuses, for resistor used a meter).
3. Checked switch. Which I broke during removal, so I replaced with a new one.
4. WORKED immediately with a new switch! I was happy and proud that I fixed the problem.
5. 3 Days of a warm Jeep. Suddenly NO fan again. Nothing.
6. Cold Jeep
7. Took it to local garage. Good Guys. They checked everything I did. Saying "Better off at the dealer". Could be the Blower Motor they say.
8. Called for estimate from Dealership. $526.00 Bux.
No. Recession, Man.
9. Typing here now. Hoping someone has some help or any ideas. Is it a blower motor, even though it worked fine a week ago? OR why are the switches failing?

I have replaced an exhaust manifold on this Jeep, and that is the extent of my ability to do things myself other than routine maintenance. Is this something I would want to do myself?

But first off, what is going on here?

Thanks!

Mike
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Wednesday, December 30th, 2020 AT 11:35 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
If you can do 2/3 why not the blower motor-go find it and splice into the dark green wire on it-and power it from the battery positive terminal see if it comes On-make sure the fan switch is on. Let me know

If unreadable give me your email addy


https://www.2carpros.com/forum/automotive_pictures/12900_blower_motor_7.jpg

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Wednesday, December 30th, 2020 AT 11:35 AM (Merged)
Tiny
BLUEDOG222
  • MEMBER
  • 2 POSTS
Hey thanks for the response!

Cant read the image though, try sending it to msullivan222@gmail. Com.

Thanks again!
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Wednesday, December 30th, 2020 AT 11:35 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Will do sending it now
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Wednesday, December 30th, 2020 AT 11:36 AM (Merged)
Tiny
MMCD010
  • MEMBER
  • 2 POSTS
  • 1999 JEEP WRANGLER
  • 4 CYL
  • 4WD
  • MANUAL
  • 100,000 MILES
I try to turn on the heat and get no response. Was wondering if it could be a fuse or if there was a way for me to figure out what the problem is.
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Wednesday, December 30th, 2020 AT 11:36 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check fuse no.11 40amp and blower motor relay
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Wednesday, December 30th, 2020 AT 11:36 AM (Merged)
Tiny
MMCD010
  • MEMBER
  • 2 POSTS
Thank you for the quick response time. I checked the #11 fuse and it looked ok. What is the blower motor relay?
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Wednesday, December 30th, 2020 AT 11:36 AM (Merged)

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