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Anonymous Poster

Saab 9-5 Heating Problem.

08/25/2010 6:25 AM

Hi i have a 1999 Saab 9-5 and the heater stop working.. I'm not sure if its the blower motor or the relay/electrical. How would i check this myself? I'm willing to fix it myself i just need to know how to figure out which one it is (Blower Motor or Relay/Electrical)and where its located in the car, i thought it was under the glove box but i am wrong.. please help me "It's freezing without heat!!!"
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Veerenchowdary
Member

Join Date: Jun 2010
Location: Banglore
Posts: 8
#1

Re: Saab 9-5 heating problem.

08/25/2010 6:31 AM

First of all, I'd check the fuse. It should have one. Make sure it isn't blown. IF it is good,
Find the plug that goes to the blower motor. Run a "jumper wire" from the positive side of the battery (marked +) to the wire that goes to the blower motor. IF the blower motor has a 2 wire plug, it grounds through the wiring harness and not the chassis of the vehicle. You will need to run a jumper from the other terminal (IF it has 2) to the chassis for a ground. Make sure they DO NOT TOUCH. You don't need to worry about which is positive and negative. IF you have them hooked up backwards, the motor will just run in reverse rotation. Does the motor run? IF NOT, the motor is bad

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 VeerenChowdary
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Veerenchowdary
Member

Join Date: Jun 2010
Location: Banglore
Posts: 8
#2

Re: Saab 9-5 heating problem.

08/25/2010 6:34 AM

chk fuse

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 VeerenChowdary
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peterg7lyq
Guru

Join Date: Jan 2010
Posts: 2446
Good Answers: 60
#3

Re: Saab 9-5 heating problem.

08/25/2010 7:24 AM

See if it was covered in any of these first.

How much electrical knowledge have you ?

http://cr4.globalspec.com/search/sitesearch?do=show&sort=textmatchrank&srch=saab&order=asc
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Coldspot
Power-User

Join Date: Apr 2010
Location: Where no man should ever live
Posts: 195
Good Answers: 6
#4

Re: Saab 9-5 Heating Problem.

08/26/2010 8:40 AM

If you know about relays and where the heater fan motor relay is you can troubleshoot things rather quickly.

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