Heater fan only works on 3 or 5

Tiny
68MALIBULEE
  • MEMBER
  • 2004 PONTIAC MONTANA
  • 130 MILES
The heater fan in my 2004 Pontiac Montana only works on 3 or 5. This started a week ago. I replaced the fan resistor behind the fan motor with a new on. This did not fix the problem, and it still only blows on 3 or 5. Also 3 and 5 seem the same, but before yo could tell the different speed all the way from 1 to 5. What should I check now?
Do you
have the same problem?
Yes
No
Thursday, December 29th, 2011 AT 12:14 AM

3 Replies

Tiny
WRENCHTECH
  • EXPERT
That would pretty much have to be a bad switch or the wiring to it. Speed 5 doesn't even pass through the resister so that could have been anticipated that it wasn't your problem.
Was this
answer
helpful?
Yes
No
Thursday, December 29th, 2011 AT 12:48 AM
Tiny
SATURNTECH9
  • EXPERT
Do you have a multimeter to do some testing?You will need one.
Was this
answer
helpful?
Yes
No
Thursday, December 29th, 2011 AT 12:49 AM
Tiny
WRENCHTECH
  • EXPERT
I have to take part of my answer back. The relay is included in the resister so all 5 speeds actually do pass through it.
Was this
answer
helpful?
Yes
No
Thursday, December 29th, 2011 AT 12:51 AM

Please login or register to post a reply.

Recommended Guides