1993 Buick Lesabre blower fan

Tiny
RADGAST14
  • MEMBER
  • 1993 BUICK LESABRE
  • 3.2L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 204,000 MILES
Blower fan doesn't work on high speed, fan stops/starts, stops/starts, have replaced fan, relay, small finned part above fan that affects performance, and the main control unit, all parts new except control unit, when fan stops when on a/c control unit becomes hot on bottom right side below selector buttons. Thanks, John
Tuesday, May 20th, 2014 AT 5:30 AM

3 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
Try rapping on the motor with a screwdriver handle the next time it stops. If it starts then, replace the motor.
Was this
answer
helpful?
Yes
No
Tuesday, May 20th, 2014 AT 6:06 AM
Tiny
RADGAST14
  • MEMBER
  • 2 POSTS
Thanks, also can I unhook the three pronged socket going to the blower, start the engine and use a ohm meter on each prong one at a time, to see if its getting any or the right amount of electricity? Is there someplace I can look up what the reading should be? Thanks again, John
Was this
answer
helpful?
Yes
No
Saturday, May 24th, 2014 AT 7:22 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
It should be a 2 wire plug and yes, you can test for power and ground with a test light or voltmeter, not an ohmeter.
Was this
answer
helpful?
Yes
No
Saturday, May 24th, 2014 AT 8:49 AM

Please login or register to post a reply.

Sponsored links