Saab 2.2tid car loses all power when warm, rev counter goes to zero
Hi my 2.2tid 95 works fine until the temp gauge gets to about half way, then car loses all power, not like the common limp home mode, basicaly tick over power, and the rev counter goes to zero, if left for a couple of hours car starts and runs fine, then will repeat the above as soon as warm, any idea's I've a feeling it could be a Crankshaft position sensor, but cannot find it on the engine block??
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On my slightly older Saab the radiator fan is electric and only is engaged when the temperature meter reaches 3/4 to the top.
When the car is in motion it will not spin since the air flowing through the radiator from the speed is sufficient to maintain normal engine temp. Only when the car is still it for a few minutes it may start to spin especially during summer, it will sometimes continue to spin even after the engine is turned off. This is normal behavior for this car.
To conclude, if your engine temp only goes up to half the gauge there would be no need for the fan to start spinning. If it doesn't engage during the conditions I described above there would be a problem that needs to be fixed.
Sounds like faulty engine temp sensor. When it drops to cold, the engine control unit picks this up and alters the fuel mixture accordingly. The ECU will be making it a very rich fuel mixture for cold starting, hence very poor running when engine is hot.
i had same problem and its just oil pressure sending unit its above oil filter just check it if you got some loose wire or somthing .........my problem was ;i had oil in conector i clean it and works jyst fine