Question about 1999 Saab 9-5

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I have a Saab 9.5. 1999 The heater blows cold on any setting other than high on the passenger side. Suspected blend door but seems OK up there. Done the calibration (AUTO - OFF) no fault codes. Any ideas? Thank you.

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  • 59 Answers

The heater inside is thearthy or the line too it

Posted on Nov 10, 2010

  • rwilsdon Nov 10, 2010

    Sorry but I don't understand

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This is my best guess with out knowing the year of the vehicle.
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OK, most cars have heater cores that get hot but the blender door directs air away from this core in the a/c mode when you want cool air from the evaporator.

I'm not sure if there is a control valve which stops the water from going through the heater valve.

I think the part is called a 'heater blend door actuator' that you are after.
http://www.autoanything.com/air-conditioning-65-861/201A1060.aspx?kc=AFFCJ&mr:referralID=c9ca506d-9f22-11df-bf8d-0026b95a1738


Aug 03, 2010 | 1999 Saab 9-5

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Not exactly certain, but sounds like you have a broken "blend door" or acuator malfunction

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Hi,
There are separate blend doors for the passenger and driver's side. The blend doors divert, not block air, so it is unlikely that the blend doors are the problem. You need to check the operation of the re-circ door.
There may be some more duct work that attaches to the heat/air conditioning housing under the dash, that supplies air and or heat to both the driver side and passenger side of the car, the duct work on the driver side may have come disconnected.Check this also.
Hope this helps
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The blend door on the passenger side has broken. Jeep has made a replacement section for the heater box assembly so you don't have to buy the whole thing. You will need to remove the heater/A/C box to replace the part. I have done quite a few of these repairs to fix the problem

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No heat on the drivers side


Hi,

I have the same problem with my 1999 Saab 95 SE. I have done some intensive research on the repair and I have come across a few websites with solutions and they ultimately point to the same one. Your HeaterBox blend door or stop arm is broken it diverts the heat to both sides of the compartment. I had a quick free fix from my dealer from them by setting my temp to HI on both sides. But that did not fix the original problem of having cold air blow on the drivers side no matter which selection your choose to have the air blow, may it be on the windshield, panel or floor, it still came out cold. It is fine on the passengers side, but the tech at the Saab dealership instructed me not to adjust the temperature settings on either side or it might break completely, I think their just trying to tack on $2000 dollars of repairs for something I can fix for $100-$200 or even less than that. You should be able to get the job done in 2-3 hours providing nothing else is broken besides the blend door arm and/or stop arm in your heaterbox. Here is the link I found that will help you fix the problem. Hope it helps and keeps you warm, just be glad you have heated seats for now, without it I think I'd freeze to death in this Michigan weather, lol.

Illustrated Fix


Good Luck and Best Regards,

Gandy Kachucha

Nov 21, 2008 | 1999 Saab 9-5

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