Mitsubishi Montero Sport Misfire

MITSUBISHI
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OVERCOMER
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i own a mitsubishi montero sport 199 model v6.recently i have encountered a problem.two out of the six plugs are not functioning.only four functions and this does not make the car to run smoothly.it jerks.my mechanic beleives there is a problem with the camshaft sensor which controls the plug wires supplying fire to the plugs.my mechanic has checked all three coils that feeds all the six plugs but there is no problem with them.please i need help.
Apr 13, 2006 at 1:08 AM
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LOSONE
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That COULD be the problem but as I remember the sensor controls all the firing not just misc cylinders. It could be a fluke and is worth replacing as they are not too expensive. One has to believe mechanics at some point until proven wrong. I have learned that after 40+ years in the business. Good luck
Apr 13, 2006 at 1:44 AM
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Suggested Repair

Replace the camshaft position sensor as a relatively inexpensive next step after the coils tested fine, while noting it normally controls firing for all cylinders rather than only two.

Conversation Summary

The owner of a Mitsubishi Montero Sport V6 reports that two of six spark plugs are not firing, causing jerking and rough running. The mechanic suspects the camshaft sensor after checking all three coils and finding no problem. The expert says the sensor usually controls all firing, not just some cylinders, but replacing it is reasonable because it is not expensive.

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