20 Most Recent 1999 Saab 9-3 Questions & Answers

Where did you get micro switch?

it will not cause damage. If car runs fine why would you want to change octane rating? It will not improve fuel economy.

Bad O2 sensors affect the fuel/air mixture. Vibrations can be caused by many sources, hard to diagnose here. To test the motor mounts. apply the parking brake, open the hood. Put the car in drive and step on the brake with one foot while applying full throttle with the gas pedal. Watch for excessive engine lifting on one side. Be careful not to have the engine fan to contact the shroud. Now do the same in reverse. If the engine lifts excessively, your mounts are shot. If the engine stays put with only a slight movement from torque, then the mounts are good.

Electrical contact cleaner is not good for map or maf sensors. There is a special cleaner for this however I have never actually had any luck with the cleaners. It very well could be the sensor going bad. Not being familiar with your car I can say I had the exact same issue with a 97 mercury cougar and it was the sensor. I would double check the plug making sure the gap is correct and it is not cracked, check the wire (swap to another cylinder if you can and see if the error code swaps as well), check the coil pack as well.

Whatever the issue you will be unable to get parts (and you will need them for this type of problem), sorry you got taken in when you bought this car by GM

If wd40 doesn't help try Blaster. If that doesn't do it, try vinegar to loosen the corrosion on terminals.

The Check Engine light is most likely an emissions issue, not necessarily a malfunction that will disable the car. Go to Auto Zone, Advanced Auto Parts, or other retail auto parts store and have them read the OBD codes for you. They will tell the story. Good luck ! By the way, fix the easiest / cheapest codes to clear first, if there is more than one error code displayed - often the additional codes will clear up too.

1. Try locking and unlocking of the doors five times with the remote to reset the immobilizer. 2. Key in ON position push Open button on key fob.

its possible but a lot of fabricating also need computers for the 2,3

My guess, and it's just a guess, is that the clutch is gone. . .