engine light stays on, does not flash. The code is for vacuum system failure. Not sure if it is in hoses or in vacuum pump. How do I determine ? Car runs well, heater/air conditioner runs well. Short of expensive trip to dealership I could use some ideas
How do I determine if vacuum leak is in system or bad pump on 2003 Ford Taurus
by pastor wayne in Paris, TX on October 11, 2010
ANSWER by DaveJM , October 11, 2010
Do you mean Evaporative Emissions system issues - like P0455 P0456 P0457,that sort of thing?
ANSWER by wrenched , October 12, 2010
I could be as simple a your gas cap not sealing also. Put some vasoline on it and make sure it's tight.