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Hii saab 9-5 2004 cold air coming instead of heat

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  • 103 Answers

Thermostat. Coolant levels. Heater box. Heater fuse/relay.

Posted on Feb 09, 2014

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: blower for AC/heat not working on Saab 9-3 ARC

that happened to me there is a i guess u can call it a fan cooler it keeps the fan from overheating and if that blows on a hot day it can mess up your blower moter but if its not workin at all you most likely allready did that for this job the blower moter is located behind the glove box if you not half dumb its a job u can do yourself and save a looooot of money on labor

Posted on Jul 10, 2009

  • 15 Answers

SOURCE: my 2003 acura blows out cold air instead of heat

go to the auto parts store and buy a thermostat for you model Acura.(Usually about $15-$30). Remove the radiator hose at the end where it connects the the engine. You will see the old thermostat lying in the hole. Simply take it out and replace it with the new one. Make sure you refill any lost water into the radiator when your done.

Posted on Dec 06, 2009

  • 1 Answer

SOURCE: cold air coming out instead of heat

you could have low radiator fluid, same thing happened to me a while back, no guarantees though, just an idea

Posted on Dec 09, 2009

saabreur
  • 51 Answers

SOURCE: My 92 Saab 900 blows cold air constantly and the

Unless you have symptoms of over-heating, I rather doubt that your water pump is a problem. I recall that my water pump had a metal impeller (1992 C900); I haven't heard of a plastic impeller on a Saab pump before. (Most pump failures are the bearing seal, and the pump leaks coolant) If your temp gauge is slightly low (and was OK before) I'd rule out water pump issues.

You might have one or more of the following issues:

  1. did you use a Saab thermostat? The Saab stat has three stages (no flow to rad - cold; flow to rad and heater core - normal operation; and no flow to heater core, full flow to rad - overheating) that most after market stats don't.
  2. did you use a low temp stat? this opens at about 82 deg (rather than 89 deg), and will run cooler during the winter, hence you gauge will show lower than the mid point. The big benefit is that your engine won't overheat during the summer (a very good thing!) with the low temp stat.
  3. has your rad and heater core been flushed recently? If the heater core is obstructed flow will be reduced and the heater will run cool. Feel the rad and heater hoses when your engine is warm; if heater hose is much cooler than rad hose with heater temp set to max, then core flow is likely restricted, or valve is not moving much from the shut position.
  4. is you vacuum tank properly connected and are there no leaks in the vacuum piping? The tank is in the driver side rear wheel well below the trunk deck on a convertible, and in the passenger side front fender area on the other cars. It's a white bottle with one or two hoses connected to it. If not properly on, your vacuum operated heater flaps won't move. Does the air distribution knob make sucking or hissing noises when you set it to different positions? If not, check the tank connections, look for vacuum line leaks, then suspect the vacuum valve behind the distribution knob.
  5. Lastly, the shaft connecting the temp control knob to the valve behind it may not be properly in place. This can be inspected, and adjusted if necessary, from the speaker/vent cutout on top of the dash. Make sure you re-connect the black flex hose to the air vent tube, or you'll get no defrosting afterwards!
  6. remember, the centre vents always blow cold air; a brilliant idea from Saab so the driver (and passenger) can get fresh air in the face and stay awake while the rest of the driver, passenger and car is toasty!
  7. see http://townsendimports.com/Web/cooling_system_folder/thermostatreplacement.htm for flushing and stat replacement info

Posted on Mar 01, 2010

ZJLimited
  • 17970 Answers

SOURCE: 2000 Saab 9-5: heat on

1. The error code will not appear on the SID. You will need to press the AUTO and OFF buttons at the same time and watch for the code on the ACC Panel.
2. The cost is a tricky question. There are 3 motors in the ACC system so pulling the code is the best place to start.

Its possible that you have the blend door error. I just did this repair a few weeks ago. This was my least favorite repair on the 9-5 yet. It's not hard, but it's not fun.

I see one or two things in your future:
- A broken stop arm,

zjlimited_262.jpg

and/or a broken blend door shaft.

zjlimited_263.jpg

Luckily, there are a lot of good threads on here about how to repair these yourself:
- ACC+blend+door+repair 1
- ACC+blend+door+repair 2

Hope helps.

Posted on Dec 18, 2010

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Hot air forced into cabin while driving 92 saab 900


the air distribution switch controls the air distribution and the fan, distribution switch in the 0 (straight down position) will be off. Car movement forces air into teh body, but with teh fan off there will be no air when the car stops. Does the fan run when the distribution switch is in any other position? it should respond to the speed settings of the fan switch.

There is a vacuum bottle accumulator that assists the distribution switch, sometimes this gets disconnected and the switch settings don't work.

Do you hear any noises if you turn the distribution knob while the car is running? suction noises, or flaps opening?

If not, then you likely have a vacuum problem (check for a white bottle in left front wheel housing, except convertible -> under the spare wheel, tank should have one or two vacuum lines connected to it (one for convertible). A disconnected or leaky line is the most likely cause.

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But check the vacuum accumulator first, if under the spare wheel, the lines are easily dislodged.

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Hi,
can you listen the ventilation fan working?
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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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