Saab 9-5 Climate Control Questions
I have a 2001 saab 95 se and half of the cars heat works the other doesnt only cold are comes out and its not a good feeling in the winter. Does anyone know how to fix that problem ? or whats wrong with it ? only the drivers side vents push cold air all others work fine even in the back.
So you'll need to clear a path to the servo unit that works off your heater core, I would guess. If you're adventurous, you might crawl under the dash and see if you can trace the driver's side vent back to the heater core and look for a loose vacuum line or some such. Can't really say how accessible your heater core area is on that car.
On a long trip today I noticed that hot air was coming out of the centre console instead of cool air. It was a nice mild day with the outside temp ranging from 18C to 20C but with 18 C selected [on Auto setting] cool air was coming out of the front vents but much hotter air was coming out of the rear vent. If someone was sitting in the back seat they would be uncomfortably hot. I played around with various temp settings but couldn't stop warm air coming out of the rear vent.
I'll check with the service agent but I wonder if anyone else has experienced this problem and has a fix?
Incidentally the weather while quite warm was cloudy/overcast and I wonder if the sun sensor may have somehow confused the system.
Any comments/ideas would be much appreciated.
I recently noticed a problem with my 2000 Saab 9-5 heater/fan. When I start the car "cold", the heater fan comes on and works fine as long as I'm driving. However, when I turn off the car for a few minutes to an hour (not long enough for the engine to cool?), when I restart it, the fan does not blow at all - even when I manually punch it up to max. This is very hazardous in Minnesota - tonight I had no defrost after a trip to church! Anyone seen something like this? Thoughts on what to troubleshoot?
If you see a code 08 pop up, take a deep breath before hearing the dealer estimate!!
Google 'saab 9-5 code 08' for alternative fixes.
If you get lots of heat down to the floor but not much up top, that might be something more connected to hypothesis.
t day...any thoughts???
Bulletin No.: 854-2577
Date: December 2006, 2000
Bulletin Number: 854-2578
Date: April 2006
Bulletin Number: 854-2411 utg. 2
Date: April 2006
Bulletin No.: 854-2461
Date: March 2004
Bulletin Nbr: 871-2322
Date: March 2002
I have the same issue and the error code that came up in mine was 1_19 ...did u ever end up finding a solution to this ? the air that comes through when driving I believe is RAM air ...
I removed this device (in front of the battery - round, black, pump looking device that has two air pipes and one electrical connector). Took the metal half off (don't mess with the plastic side). Looked inside at the motor. Wow, look at that, one of the wires (red) is touching one of the brush holders and is shorting it out through the insulation.
Solution: cut the red wire the slightest bit shorter and crimp another connector on there, boom done. No more short. You can also just disconnect this device all together if you like as it only effects the emissions in the first five minutes or so. This will probably help most people with a heater fan not working at all.
Double check that your #22 40 amp fuse is blown. If you just replace it, it will just blow again. You either have to fix it or replace the SAI unit. The SAI unit's motor will probably be pretty well melted from the short and may have to be replaced to pass smog.
This should fix your problem and has nothing to do with and will not show up on the ACC codes!
If this is not your problem, here is a basic procedure for diagnosing interior heater problems:
first check to see if you have enough coolant in your engine. Next, run your engine till full operating temperature. Now check the heater hoses that go through the firewall to the heat exchanger buried in your dashboard. They should both be quite warm almost hot. If one is cold, you have one of two problems: One, the heater hose system needs to be bled and is currently stuck with a vapor lock. Two, the valve or pump that sends hot coolant to the heater core is not engaged and is suspect
If both hoses are hot and you have no heat it has to be the flap (blend door) that allows cold air to pass over the heat exchanger. Different things can cause this, fuse blown, lever arm broken (detached), electronic thermostat control malfunction.
In the case of the Saab, if you pull the blend door motor off and move the blend door arm by hand you will get heat and you can start to diagnose the exact issue from there (ie, check motor, shaft etc.)
Hope this helps.
I don't recall that Saabs were ever particularly susceptible to rust anyway.
Remnants of a mouse nest getting stuck in fan? They usually use what is handy and warm insulators. Car interior sound deadening underpadding is the material of choice...the little $%#&*! so and sos..
Try parking with recirculate door closed in future but is not a solution in all cars.
Rheostat gone bad in the fan switch?