Question about 1998 Mercury Mountaineer

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SOHC 4.0 - cranks with no problem. Will

SOHC 4.0 - cranks with no problem. Will immediatly idle up to high rpm and then back down to almost a loping idle. Then will die. No problem restarting. (1998 mountaineer)

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Most common problem is an IAC (idle air control) motor and computer reprogramming

Posted on May 19, 2010

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