Question about 1998 Mercury Mountaineer
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)
Most common problem is an IAC (idle air control) motor and computer reprogramming
Posted on May 19, 2010
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Posted on Jan 02, 2017
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