Question about 1991 Oldsmobile Ninety Eight Regency

1 Answer

Ac fan staying on Cut car off and ac still on and take out ignition and it still stays on

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Oldsmobile Master
  • 6,927 Answers

If the blower motor,or the cooling fans are staying on,then it is a relay stuck.Find the relay,by removing relays one by one,replacing them back as you go.When the relay is unplugged,the fan will go off,If you put it back in,it will probley not come back on unless you turn the ac back on,then it will do it again.Replace the relay with a new one.I hope this is helpful,let me know if it is.

Posted on Sep 29, 2009


1 Suggested Answer

  • 2 Answers


Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

2003 buick lesabre ac fan runs when car is cut off

How long does it run? The reason I ask is because it is designed to run after engine shut down under certain conditions of temperature to cool down the engine and prevent vapor lock in the fuel rail. If it just stays running all the time after the key is turned off that is of course a problem.

Jun 24, 2016 | 2003 Buick LeSabre

2 Answers

Ac/heater stays on after car is off and key is out 2000 ford explorer

sometimes,and some cars have a blower motor resistor that goes bad.Check and see if you have one,replace

Jan 06, 2014 | 2000 Ford Explorer

1 Answer

Heater/Ac fan stays on high when key is on. where is the fan speed resistor located?

may be a fried switch also.. parts store can tell you for sure as can dealer service..

Dec 20, 2013 | 1997 Chrysler LHS

1 Answer

4X4 heavy duty

sounds like it needs a new high pressure switch for ac,thats what tells the fan to kick in,if the switch was working but stays open the fan would always stay on even if ac was of

Nov 12, 2012 | 2006 Dodge Ram 2500

2 Answers

When I turn my car off the air conditioner still runs-I needed a jump the other day because it ran all night and wore the battery down.

OK, if the relay for the A/C fan is bad, then the radiator's fan will keep running after turning off the ignition. Also, if the fan for ventilation of the A/C in the cabin stays on after the ignition is turned off, the relay for that is bad.

Good luck on this repair.

Sep 20, 2010 | 2001 Buick Century

1 Answer

Does the fan always run

Cooling fans only run when the temp,of the coolant get to about 215 to 218 degrees,and shut them selves off,when the engine cools down,if they do not cut off,the engine is not cooling down,now,if the ac is on,the cooling fans will stay on until the ac is shut off.

Jun 08, 2010 | 1994 Ford Taurus

2 Answers

I have a 01' New Beetle my cooling fans come on high speed when the ignition is turned on and stay on while the motor is running. Have already changed out the coolant temp sensor, control module, radiator...

I finally fixed the problem. It wasn't the Water pump, or the Fan switch or the Green Temp Switch or the Fan Control Module but the "BLACK" NOT White, 2 Pin Thermal Switch 112c" It does sit in between 3 collant hoses where the upper radiator hose comes together with 2 smaller hoses. Kinda looks like a peace sign and in the center sits the 2 Pin Thermal Switch. It's not a AC Cut off switch which even the dealer tried to sell me and which I actually ordered from ECS tuning. The AC Cut out switch is "White" and even thou looks the same in size and form will not fix the issue. I was able to read the part number off the old switch which is 357919369F which when I looked it up on the ECS tuning web site did bring me to the right switch. Black with a green stripe on the top rim. I ordered that baby and it came in yesterday. Took the White switch out and put the Black switch in and guess what the fans no longer turn on when the ignition is in position 2 and now the fans come on when they are suppose to and don't sound like a jet engines afterburner. Simple 20 dollar part solved the problem. I think a lot of people are getting the wrong part from the dealer since this part is very hard to find. Everyone I asked wanted to give me that white sensor AC cut out switch but that isn't it. Here is the link to the correct switch hopefully it will help someone avoid a bit of frustration.

May 15, 2010 | 2001 Volkswagen Beetle

1 Answer

Passenger window,ignition,and ac fan.

Did this start at the same time? If it did it could be the body control module. Which is an electrical problem. If they started at separate time the window motor is probably going and the ac fan could be the resistor

Sep 17, 2009 | 1998 Dodge Caravan

2 Answers

1997 Dodge Intrepid / 3.5 L - failure of fans, airbag, ac, etc.

have seen ignition switch cause all of these symptoms..also make sure connections at switch are clean and secure..

Mar 19, 2009 | 1997 Dodge Intrepid

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

136 people viewed this question

Ask a Question

Usually answered in minutes!

Top Oldsmobile Experts

Jonah Oneal

Level 3 Expert

14092 Answers


Level 3 Expert

85178 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22484 Answers

Are you an Oldsmobile Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides