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Rough Idle
#1637050 08/28/06 08:39 PM
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wcollegenj_dup1 Offline OP
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Hey everyone..here's the problem. I have an 00 Mystique 2.5 ATX and lately it seems to be idling rough regardless of temperature or time. No codes have been thrown,no starting problems, not idling low, just feels rough. Rough as in I can feel the vibration through the wheel and seat when I come to a stop at a light. I did a search and I can eliminate the fuel pump and serpentine belt since both of these parts are less than a year old. Any ideas? Oh yeah, the car has 143k on it and I've had it since 0 and I maintain the car well.

Re: Rough Idle
#1637051 08/28/06 08:48 PM
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mcgarvey Offline
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With that many miles, IAC is likely the culprit. Search and you'll find a howto on cleaning it. Also check motor mounts and the obvious plugs and wires.

Re: Rough Idle
#1637052 08/28/06 08:53 PM
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wcollegenj_dup1 Offline OP
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Could the spark plug wires be the culprit? I know they need to be replaced

Re: Rough Idle
#1637053 08/28/06 09:45 PM
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johnoh Offline
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yes it could be the wires - might as well do the plugs too

'95 Contour GL 2.0l automatic, 110k miles
Re: Rough Idle
#1637054 08/28/06 09:47 PM
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m4gician Offline
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well I assume you've been maintaining it really well so the plugs might not be the problem, though it is a good place to start. When I was roughly idling the problem seemed to go away on it's own, and that was after a tune up.

1998 Mercury Mystique LS - Looking for SVT EXHAUST, SVT Rear bumper (silver frost) and ANY rocker mouldings (side skirts)
Re: Rough Idle
#1637055 08/28/06 09:59 PM
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johnoh Offline
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I had rough idle for months and never could get it fixed, and then I got code 332 and replaced the dpfe and the idle suddenly went back to normal.

'95 Contour GL 2.0l automatic, 110k miles
Re: Rough Idle
#1637056 08/29/06 01:29 AM
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Tony2005 Offline
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Originally posted by wcollegenj:
... Rough as in I can feel the vibration through the wheel and seat when I come to a stop at a light. ..


Put it in Neutral. Is it better? If yes, then it is a tranny/engine mount.

"Always do the cheap and easy ones first." 1996 V6 ATX 96K miles

Moderated by  horseydug_dup1, Ray_dup1 

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