Blower Motor Problem - Please Help !!!
Thread Starter
Intermediate
Joined: Dec 2004
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From: Avoca PA
UPDATE: Blower Motor Problem - Please Help !!!
I have a 90 vette, was out for a ride yesterday and the second time i stopped at a location and shut off the car i noticed the blower motor (inside the car ((heat/ac))) was stuck on high, turned the ignition back on and played with the fan selects (1,2,3, etc) and it remained on high, even with the key off and out of the ignition the blower remains running on high, the only way i was able to get it to turn off was to pop the hood and pull the 4 terminal wire plug off of the blower box.... what could be the problem, the part that confuses me is that it is still on even with the car off and the key out ???? please help me !!! 
Last edited by z71paul; Feb 23, 2005 at 04:22 PM.
Thread Starter
Intermediate
Joined: Dec 2004
Posts: 25
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From: Avoca PA
ok so i bought the new relay but cant for the life of me locate it, i was all around the blower motor, under the car, on top of the car, im going nuts here please help.... 1990 vette
Thread Starter
Intermediate
Joined: Dec 2004
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From: Avoca PA
Originally Posted by Vetterin
On my 85 it's on the firewall right under the blower motor housing. Easy enough to get at and only a $5 part.
Melting Slicks
Joined: Aug 1999
Posts: 2,240
Likes: 42
From: Baltimore, MD USA
In your original post you should have mentioned that you have the C68 Automatic Climate Control.
The C68 does not use a relay. If the fuse on the firewall is not blown, the Blower Control Module is probably bad.
The module is located on the top/inside of the evaporator housing and held in place by some small bolts.
Remove the two electrical plugs, the small bolts and you can pull the Module out. Only takes 2 minutes to pull.
The C68 does not use a relay. If the fuse on the firewall is not blown, the Blower Control Module is probably bad.
The module is located on the top/inside of the evaporator housing and held in place by some small bolts.
Remove the two electrical plugs, the small bolts and you can pull the Module out. Only takes 2 minutes to pull.
Thread Starter
Intermediate
Joined: Dec 2004
Posts: 25
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From: Avoca PA
Originally Posted by Hooked on Vettes
In your original post you should have mentioned that you have the C68 Automatic Climate Control.
The C68 does not use a relay. If the fuse on the firewall is not blown, the Blower Control Module is probably bad.
The module is located on the top/inside of the evaporator housing and held in place by some small bolts.
Remove the two electrical plugs, the small bolts and you can pull the Module out. Only takes 2 minutes to pull.
The C68 does not use a relay. If the fuse on the firewall is not blown, the Blower Control Module is probably bad.
The module is located on the top/inside of the evaporator housing and held in place by some small bolts.
Remove the two electrical plugs, the small bolts and you can pull the Module out. Only takes 2 minutes to pull.
ahhh.... that would be the one, funny the dealer never asked that question ! thanks !!!
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From: jax fl
I am having the same problem with the auto hvac in my 91. the blower stays on constantly. I checked the fuse (5 amp) under the coolant tank on the firewall and it was good. Is there another fuse? Could my blower motor switch have gone bad?
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From: Avoca PA
the busted part was the 'blower control module', 3 bolts hold it to the top of the air box, 2 are two wire quick connects on the top of it and the bottom is a large heat sink... i found it for $40 at an online vette salvage.... dealer wanted $150
