Question about 1993 Saab 900

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Saab 900s 1993,won't start,just changed battery,coolant sensor,radiator fan switch.Car was backfiring and cutting out as soon as I let off the gas. Now the new battery.It started this morning, stalled and now won't start.

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  • Saab Master
  • 5,763 Answers

Take a look at the sparkmodule asm, this is a common problem with these saabs, the next thing would be the fuel preasure,make sure the pump is operating and putting out enough preasure,and last look at all fuses, these barrel type fuse corriod at the end and dont make the connection,

Posted on May 30, 2010

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Related Questions:

1 Answer

How long for the ac fan to start working? Ive noticed that the fan does not work when i turn the ac on, can this cause my car to overheat. I check the temp and coolant liquid both seems fine.


the ac fan starts as soon as the ac is switched on
the fan is provide cooling of the condenser before the radiator to prevent high head pressures in the ac compressor
it is the fan at the front of the car mand does not affect engine temp
there is a radiator fan between the engine and the radiator that will not start until the coolant temperature reaches a set temp at which point the ECM switches that fan on
if that fan is not working when the engine is hot , check for fan, coolant temperature sensor switch , fan relay, fuses or problem ECM

Jan 13, 2016 | AC Cars & Trucks

1 Answer

Radiator fan stopped working.


OK put it back to the way it was and start from scratch jump the fan from the battery if it comes on fan is good if not replace it if it does come on check temp sensor mounted somwhere on intake if not there in bottom of radiator and replace that good luck never run coolant fan to ignion you have to run a sepreate switch with a positive and negative from the fan

Apr 01, 2015 | 1997 Mercury Cougar XR7

1 Answer

1996 saab 900s starts but turns off


Failing crank position sensor (CPS) is possible. If the ECU does not get a constant pulse from the CPS the fuel pump does not switch on, so no start due to no gas. if it is failing, the pump may activate intermittently.

Apr 27, 2012 | 1996 Saab 900

1 Answer

Saab 900s convert air box exploded bad miss fire


learn the hard way ,,, it will need the attention of a mechanic to change all the parts burnt when it backfired and caught alight ,or just write it off and call the scrapyard

Aug 01, 2010 | 1996 Saab 900

1 Answer

My fan won't spin but there is coolant spitting


If you have that much pressure, it looks like you might have already overheated the engine and blown the head gasket. Is it heating up very quickly from a cold start and does the water start coming out of the cap almost as soon as you start up? Your fan may have stopped working first causing the problem. When the radiator was put back in was the fan reconnected? Have the system pressure tested and if the head gasket is leaking you will soon see as the pressure will drop. The radiator company should be able to put a tester on it - probably won't cost anything. At the same time ask them to check all the ran fittings.

Apr 06, 2010 | 1997 Saab 900

1 Answer

Where is the thermostat in a 900s oh. 97 saab 900S Well my car was overheating and I notice in this model car if you need your oil changed it will overheat. So there is oil and all my fluids are full...


Oil change interval has nothing to do with operating temperature. If your coolant is full, feel the upper radiator hose, when the vehicle is up to temp. if cool , thermostat is back from that hose,

Look for air bleeds, and read owners manual, some cars have coolant bleeds. Also, heater on high when filling coolant or risk bubbles...

My thought is that your fans may not be kicking in. They should cycle on and keep temp low enough. test them.

Sep 15, 2009 | 1997 Saab 900

2 Answers

Car cranks but wont start (92 Saab 900s Turbo) gas fumes heavy spark but no start


cars need fuel, spark and oxygen to crank over. must be a problem with the air intake system. O2 sensor / vacuum leak / something similar

Sep 02, 2009 | 1992 Saab 900

4 Answers

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

May 28, 2009 | 1988 Saab 900

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