Buick A/C fan won't shut off
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Buick A/C fan won't shut off

 
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Dave
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Posted: Mon Dec 05, 2005 9:16 am    Post subject: Buick A/C fan won't shut off Reply with quote

The fan in my 92 LeSabre won't shut off, even with the ignition key
removed.

From other posts I've read that there is a relay or resistor that goes
bad. I've traced the wires from the blower motor back to the firewall,
with no interuptions, and searched under the dash but couldn't find
where the wires came back in.

Any help before I rip the whole dashboard out?

Thanks,
Dave

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« Paul »
Guest





Posted: Mon Dec 05, 2005 9:16 am    Post subject: Re: Buick A/C fan won't shut off Reply with quote

Assuming your car has manual control, it sounds like the relay is stuck shut. GM
often puts the relay on the firewall, about center, engine compartment, along with
the other
relays. There should be no reason for you to look in or under the dash.
The resistor is used to drop current for slow speeds and has nothing to do with
the relay being stuck shut.
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Dave
Guest





Posted: Tue Dec 06, 2005 1:49 am    Post subject: Re: Buick A/C fan won't shut off Reply with quote

I removed each relay individually on the fire wall, and the fan still
wouldn't shut off. Are they hidden somewhere?

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« Paul »
Guest





Posted: Tue Dec 06, 2005 7:26 am    Post subject: Re: Buick A/C fan won't shut off Reply with quote

I may have told you wrong and you were on the right track in the first place. On
the N car is on the firewall. According to Chilton's: "Relays: The relay center
is located on the right side of the instrument panel. The relay center is mounted
behind the glovebox."
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deepzone



Joined: 05 May 2006
Posts: 3

Posted: Fri May 05, 2006 4:41 pm    Post subject: a/c fan won't shut off Reply with quote

I tried replacing the relay on the firewall for my 94 buick park ave. but it still wouldn't shut off. Buick parts dept said that the module usually goes bad. This module costs over $500.00. Do you think its worth replacing?
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deepzone



Joined: 05 May 2006
Posts: 3

Posted: Sat May 06, 2006 11:02 pm    Post subject: blower motor fan won't shut off Reply with quote

Does anyone know if I can wire a toggle switch to the blower motor wires in order to turn the blower motor off from somewhere on the dashboard? in order to bypass the module.
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