SAAB 9000 1995 ACC so always on air con - works from cold but cuts outwhen in jams, hot running. The compressor clutch is not getting powerwhen the car is hot/in this fault condition. Just sits there disengaged instead of cycling as normal.
Seems to come back on when it gets a run to coolthe engine/condenser.
Compressor seems good when it works,gets me cool when its 90 outside, as it is right now. Have changedrelay. Ideas please? Brian Catt
Do you hear condenser fan when turning the AC on? If you press gas pedal a little bit, does the AC turn back on? Try maybe adjusting idle to factory spec and check if fan is working. It can also be low on refrigerant.
Check the relay maybe faulty and overheating
SOURCE: SAAB 9000 CD
SAAB manuals recommend replacing the chain if the chain tensioner is extended more than 11mm.
SOURCE: Radiator fan doesn't always turn on when engine gets hot
check fuses #25 and #6 (both 30 amp)
the fan thermostat is on the left side of the rad.
turn the ignition on, and after pulling back the boot, short across the two terminal with a screwdriver.
if the fan runs, fan and wiring are both good.
if it only runs when thermoswitch is shorted like this, switch needs to be replaced (get the low temp switch to prevent overheating - your temp gauge will not go over the middle position even on the hottest days; also get a low temp thermostat,and ALWAYS get a Saab stat, not an after market!)
if the fan doesn't run when switch is shorted, check for valtage between green wire and ground at the switch.
Voltage indicates faulty fan, if no voltage then check the fan relay J in the main fuse box.
Saabreur
SOURCE: saab 9000 cs 1996. after replacing the
You didn't say if it's blowing any air at all.First check that the thermostat is of the correct temp. and is installed correctly.If you are getting cold air and not losing any coolant the your flapper valve is either stuck or broken.You'll need to simply remove the aquarium cover and look to the left rear of the blower motor.You will see the plastic flapper arm which is connected to a wirewound hook.If the hook is off the flapper just reattach it.If the tip of the arm is broken you can push the arm towards the rear of the car and wedge it in place with anything that will hold it.Doing this will give you heat until you replace the flapper valve arm.The arm can be fixed without removing the blower motor.Don't be ripped off by letting some mechanics tell you that they have to remove the blower to fix the arm.They will charge several hundred dollars and take hours to do so.
SOURCE: I have a 2008 Saab
It's the small radiator situated just in front of the engine's radiator - it might be clogged up with dirt.
Please see my tip at http://www.fixya.com/cars/r6234839-doesn_t_heater_or_air_conditioner_blow . These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.
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