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Generic problem for all Oldsmobile Regency Cars

1990 olds 98 blower motor




By elecroton on Sep 04, 2008

" "
1990 olds 98 blower motor wont shut off stay on when key is turn off

Same Problem

Feb 22, 2009

-   i'm having a problem when i turn off the car the heater module stays on.please help -   Guest

Feb 04, 2009

-   1995 aurora fan blower will not shut off w key out-   Guest

Dec 23, 2008

-   My '98 Intrigue's low speed heater fan gave up a year ago :( Oh well.
Two day's ago the blower continued to run even with the keys out of the ignition!! Drained my battery :( I pulled the fuse & charged the battery. The engine now starts fine and after reinstalling the fuse the fan ran on its 2 high speeds. Then only on one High speed, then not at all. :) :) The fuse is fine. I disassembled the switch. It appears to function. However, there is power to the switch even with the fuse pulled!! But no fan. I heard no abnormal fan noises i.e. squeeks, squeles, hums or buzzes etc. -   seerofnoj

Dec 20, 2008

-   I have the same problem , i was told that i would need to replace the ignition modulator ,cost about 216.00 bucks more then the beast is worth.
I have not replaced it yet ,also thinking about bypassing this problem with
a manual switch under the dash.
would appreciate input
thks Bob-   Guest

Dec 18, 2008

-   I also have problem with the fan turning on in my 1997 Oldsmobile Regency. I have heat but the fan only works once in a while. Do I need to replace the blower motor or is it something else. -   stewartfn197

Best Solution

posted on Sep 04, 2008
Very Helpful)

fizzerdan

Rank: Master 
Rating: 97%, 11 votes
I would start at the fuse. Does the blower motor turn off when the fuse is pulled? A relay is usually used in this circuit and can sometimes "stick" allowing the blower motor to receive constant power. A quick check to see if it is a wiring problem, switch or the relay its self would be to find the blower fan relay and see if there is another one of the value you can swap with it. If the problem goes away, chances are it is the relay but I always like to take a volt/ amp reading to double check my work. 
Dan
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Solution #2

posted on Dec 11, 2009
Not Rated)

cherrysoda12

Rank: Apprentice 
Rating: 0%, 0 votes
My 1990 Oldsmobile heater fan will not turn of when I turn the car off.
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Solution #3

posted on Sep 04, 2008
Not Rated)

thirdx1997

Rank: Wiz 
Rating: 79%, 19 votes
replace heater module
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6 Other Users Have The Same Problem - Continued

Comment by Guest, posted on Nov 10, 2008

1990 olds 98 blower motor stays on key off pulled ac system fuse still on disconnected blower relay still on .disconnect blower resistor module goes off. another web site says replace blower resistor module. twenty bucks plus tax at auto zone. am going to give it a try.blower resistor left top firewall behind dust shield under blower relay.

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