Missing and quiting when stopped. runs good otherwise with no noticeable missing on 2003 Ford Escape

Ran fine until a few days ago, then started stopping when idle. Have codes P0302, P0305 & P0316 from auto zone. they told me to look for a vacuum leak somewhere. Has the same power when accelerating and cant tell there is a miss when driving. Where do I start to look?

by in Rockport, WV on April 17, 2013
2 answers
ANSWER by on April 17, 2013
See mechanic
ANSWER by on June 25, 2013
I'll bet you would tell me that if you never had to stop- you'd never know there was an issue with this car... check the coil packs and check if there are little cracks in them just be safe and then buy a $3 bottle of brake clean and spray it over the vacuum lines- when the car sounds like it surges in power, you've found your air leak. If you do this and find nothing, you're probably needing to check out the ignition switch itself and or the various grounds on your car. the stock ground wire on an escape is a joke- like a single 12ga wire off the battery and only to the chassis. invest in a 4 or even a 2ga and get 2 of them- one to the chassis and another to the motor or tranny. may not fix it but it's a good place to start