1994 Oldsmobile 88 BLOWER MOTOR

Tiny
STANOLEE
  • MEMBER
  • 1994 OLDSMOBILE 88
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 161,000 MILES
THE BLOWER CONTINUES TO RUN WITH KEY OFF
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Tuesday, December 29th, 2009 AT 1:00 PM

12 Replies

Tiny
RASMATAZ
  • MEMBER
Hi STANOLEE Welcome to 2carpros and TY for the donation and selecting us as your auto repair site Feel free to ask questions at anytime and Merry Christmas and a Happy New Year 2010

Find the blower motor relay in center rear of engine compartment, remove it should stop the blower motor if so try swapping it with a like one and see what happens

See N2 below


http://www.2carpros.com/forum/automotive_pictures/12900_blower_mtr1_1.jpg

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Tuesday, December 29th, 2009 AT 1:16 PM
Tiny
STANOLEE
  • MEMBER
I pulled all six relays and it still runs with key off
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Tuesday, December 29th, 2009 AT 1:27 PM
Tiny
RASMATAZ
  • MEMBER
Okay remove fuse no.3 30amp if it stops -the red and purple wire are shorted together within the wiring could be at the relay'

The purple wire is coming from the power side of the blower motor and the red is coming from the fuse-if this 2 - touches it will constantly power the blower motor
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Tuesday, December 29th, 2009 AT 2:16 PM
Tiny
STANOLEE
  • MEMBER
Is there suppose to be power comming out of this module, the purple wire? If not this module must be bad. I cut purple wire I have power comming out this mod with key off. On the other side of purple wire it shows continuity to ground/////
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Tuesday, December 29th, 2009 AT 2:58 PM
Tiny
RASMATAZ
  • MEMBER
The purple wire is the positive side of the blower motor if there's no power here the blower motor will not come On its the power feed wire.

The red wire is coming from the no.3 30amp that has power at all times no switch control on it then goes to the relay when the relay is energized power is transfered to the purple to fire up the blower motor.

When you pull the blower motor relay this cuts the power off between the blower switch and motor-and if this 2 wires are shorted together the motor will contantly run
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Tuesday, December 29th, 2009 AT 3:07 PM
Tiny
STANOLEE
  • MEMBER
Theres no purple wire at the relay. The red wire goes into the blower control module and a purple wire goes to the blower motor. What im asking is there power suppose to be comming out this module with key off?
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Tuesday, December 29th, 2009 AT 3:21 PM
Tiny
RASMATAZ
  • MEMBER
Hmmm. Auto control HVAC

Okay the red wire at the module should have power at all times which is coming from fuse no.3 30amp

Do you have a purple wire on the module
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Tuesday, December 29th, 2009 AT 3:48 PM
Tiny
STANOLEE
  • MEMBER
There is 2 plugs on this module 1 plug has a single red wire always hot. The other plug has 3 wires a purple, a black and blk/grey stripe. The purple wire splits 1 to the blower the other goes inside the car.
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Tuesday, December 29th, 2009 AT 4:00 PM
Tiny
RASMATAZ
  • MEMBER
I want you to remove fuse no. 2 and 3 did the motor stops?
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Tuesday, December 29th, 2009 AT 4:11 PM
Tiny
STANOLEE
  • MEMBER
The moter stops when #3 fuse is removed
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Tuesday, December 29th, 2009 AT 4:17 PM
Tiny
RASMATAZ
  • MEMBER
Replace the module
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Tuesday, December 29th, 2009 AT 4:21 PM
Tiny
STANOLEE
  • MEMBER
Thats what I figured but its a 180.00 part and I wanted to make sure. Thanksssssssss
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Tuesday, December 29th, 2009 AT 4:23 PM

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