1993 mercury sable starts fine wont idle or drive it stalls?

Answer 1

first I would check fuel preasure,second I would make sure the exhaust isn't plugged causing back preasure. You didnt say if you have a check engine light, also check for vacume leaks or disconnected hoses.You should also check the Mass Air Flow (MAF) sensor to see if it is dirty or defective. If there is corrosion on the diodes this can usually be cleaned off using some electrical contact cleaner and a toothbrush. Becareful not to use too much force when cleaning or you will break the elements and will then need to replace the MAF sensor. I recently (May '07) replaced one w/ a unit from a local salvage yard and the price was $35. A new MAF sensor for this Make & Model will cost you around $100.The fuel filter is something else you can check if you have low fuel pressure. If you do have a check engine light coming on I would take the car to one of your local auto parts stores and have them check the code(s) for you. Most automotive parts stores will do this as a free service.