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What can cause a rough idol? had a tune up at 100,000 now 130,000
1999 Mercury Villager

What can cause a rough idol? had a tune up at 100,000 now 130,000

(1999 Mercury Villager)
It idols rough when it is gear when stopped at red light or waiting in traffic. No check engine lights on
1 answer & 2 comments
Popular Answer
on December 25, 2010
Rough idle can be caused by basic ignition tune up items (plugs, wires, cap, rotor...), or even EGR flow issues. Not to mention fuel injectors. Your "tune up" - what did it include?
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plugs,wires cap ,rotor about 2 yrs ago. 1 fuel injector over the summer
on December 27, 2010
You could have another injector. You could have an ignition system issue again. Only way to tell anything is to have a diagnostic tool hooked up to check specific components...can help.
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on December 25, 2010
Rough idle can be caused by basic ignition tune up items (plugs, wires, cap, rotor...), or even EGR flow issues. Not to mention fuel injectors. Your "tune up" - what did it include?
Sign in to reply
plugs,wires cap ,rotor about 2 yrs ago. 1 fuel injector over the summer
on December 27, 2010
You could have another injector. You could have an ignition system issue again. Only way to tell anything is to have a diagnostic tool hooked up to check specific components...can help.

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