Sunday, January 6th, 2008 AT 4:59 PM
My car is making a "hissing" sound and the engine is sputtering when it is idle. The "hissing" sounds like a tire leaking, but it is definietly not as it stops as soon as I turn off the engine. When the car is idle (in park or stopped at a light) it sputters and doesn't run smoothly. Most of the time it will stall out. What could be wrong and is it costly to fix?

