Saab 2.2tid car loses all power when warm, rev counter goes to zero

see if this forum helps you out.... https://www.google.co.uk/webhp?sourceid=chrome-instant&rlz=1C1CHBD_en-GBGB719GB719&ion=1&espv=2&ie=UTF-8#q=1993+Saab+900s+temp+gauge+just+completely+stopped

suspect low fuel pressure to the injectors
run the fault codes to determine where the fault may be before you spend money

Hi Go to the Dealer and have them check it out. It maybe a simple and pushing a reset button. Or it could be something more complicated. Also check for code scan faults.#. Good luck

year??????

if everything is working and there is no engine lights on then it may just be the connection on the dash to the wiring or the rev counter has failed and just needs replacing, its usually the connections that go discoloured and loses connection and they just need a clean with some enrycloth. or switch cleaner.

Coolant sensor may be the problem. It is located near the thermostat housing. It may be sticking between modes & not operating properly.Also make sure coolant is circulating in system.

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.

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