a/c heater blower motor trouble

1992 CADILLAC ELDORADO
184,000 MILES
Avatar
TRISTANRBENSON
  • MEMBER
  • 1 POST
hi i am having trouble with my 1992 eldorado a/c heater blower(no air flow hot or cold through the front vents). the blower for the rear vents is working fine. i checked the fuses(1 40 amp maxi and 1 10 amp fuse under the hood both look good. i hooked the front blower directly to the battery and it turns on and runs. im sure the climate control panel works because when i push warmer or colder i can hear and see the air door open and shut. i removed the resistor(next to the blower motor on the fire wall) and there is no visible damage so i am stuck please help.?
Aug 30, 2012 at 5:32 AM
Advertisement
Avatar
KHLOW2008
  • CERTIFIED EXPERT
  • 41,814 POSTS
Attachd is the schematic, see if you can make anything out of it.
Aug 30, 2012 at 7:46 AM
Avatar
CADIEMAN
  • CERTIFIED EXPERT
  • 3,544 POSTS
u will needto replace the hvac blower module.
Aug 30, 2012 at 12:20 PM
Advertisement
Avatar
WRENCHTECH
  • CERTIFIED EXPERT
  • 20,761 POSTS
[quote]i removed the resistor(next to the blower motor on the fire wall) [/quote]

Resister? That car doesn't have a resister. It has a blower speed control module that is likely your problem as Cadieman pointed out.
Aug 30, 2012 at 1:23 PM
Avatar
CADIEMAN
  • CERTIFIED EXPERT
  • 3,544 POSTS
ITS LOCATED ON THE FIRE WALL UNDER THE PASTIC PANEL.IT SCREWS IN THE TOP OF THE A/C CASE
Aug 30, 2012 at 1:37 PM