2003 Mercury Mountaineer "rough idle" Questions

my suv still idles rough after changing plugs why alot of things will make your car idle rough other than plugs. how many miles are on it

car idling extremely rough, battery not charging The engine is idling extremely rough and the battery does not charge properly. Had the alternator checked and it was functtioning properly. Replaced ...

mercury mountineer running fine then started running rough have 99 mercury mountineer running fine.. stopped at store got back in started running rough... idles fine just replaced spark plugs and ...

...rough idle? Hi, if your EGR valve is stuck open, it could cause a rough idle. P1400 indicates there is a problem with the EGR flowmeter. This may be the result of a valve that is stuck open or may be ...

...rough while waiting for stop lights, coasting, etc. If you have the check engine light on, rent a scanner, read out the code(s), and pursue to repairs. Possible problems are: idle air valve, vacuum ...

...rough but run ok down the highway i would take a voltmeter and check the idle air control motor make sure it is functioning sounds like it is dirty or malfunctioning try cleaning it it is dead smack ...

Idle low 500 RPM and rough in stopped position V6 AWD This can only be solved with a aid of a obd devise. you will need to have it looked at if you have non of what's mentioned.

...pipe with strong fumes while in idle? A heavy presence of white smoke from the tail pipe is usually caused by a bad headgasket. If this gasket is bad, the vehicle may run rough as well as

...cam shaft and sensor was changed. The check engine light is back on and flashing. The engine idling rough. What could be problem? THE ENGINE LIGHT FLASHING MAY INDICATE A ENGINE MISFIRE OR RANDOM ...

My 2004 mercury mountanieer shakes when in park Vacuum leak or bad oxygen sensors can cause rough idle.