Mitsubishi Montero & Montero Sport This sport utility vehicle offers more size than the other Mitsubishi SUVs, but manages to keep a sporty look and comfortable feel, unlike many larger SUVs.

need help rough idle

Old Oct 11, 2014 | 11:45 AM
  #1  
quechon's Avatar
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Default need help rough idle

Hello i just change my spark plugs wire and now im getting a rough idle (misfire) what you guys think is causing that before i take everything apart again btw i didnt change spark plusgs just wires
 
Old Oct 12, 2014 | 08:58 AM
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Could be as simple as a faulty wire. Is it possible you didnt get the wire pushed down on the plug all the way, or accidentally switched one of the wires to a different cylinder? ??
 
Old Oct 12, 2014 | 09:57 PM
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Check the wires to maake sure they are plugged in the right order. Do you have a diagram for that? Also, use a small mirror take a peak under the intake plenum to look at the wires going to the spark plugs. See if one of them is not seated all the way (it'll be higher than others and touching the plenum). It is possible that it popped off and is not providing a full spark every time. If you were to get a check engine light, the code may help to narrow down which cylinder you are having an issue with.
 
Old Oct 13, 2014 | 05:33 AM
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Thanks guys didnt plug them in the right order
 
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