Mechanics

MAF OR THROTTLE BODY?

2000 Mercury Mystique • 116,000 miles

2.0 Zetec had a plugged PCV hose and caused blow by to allow oil into the air box. It developed an occasional engine miss due to this. Fixed the line cleaned it all up but engine miss still persists. Changed the plugs, checked the wires and changed the fuel filter. Any idea?
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Scott Steele
January 12, 2012.



Have it scanned for free at autozone or the like. You'll find out for free where the miss is.

ProAutoTech
Jan 12, 2012.