1986 Dodge Truck Misting or Shaking

1986 DODGE TRUCK
71,502 MILES • V8 • 2WD • AUTOMATIC
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LEVY ROGERS
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I have replaced the spark plugs, wires, pcv valve, and distrubutor and rotor cap. After all of this when I put the car in drive or reverse it mist but, when I am in park it does not mist that bad. What do you think could be the prolem?
Dec 25, 2008 at 8:17 PM
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RASMATAZ
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A rough idle coulld be a large vacuum leak can lean the air/fuel mixture out to such an extent that an engine will not idle at all. An EGR valve that is stuck open at idle can have the same effect as a vacuum leak. So too can a loose positive crankcase ventilation (PCV) hose, a leaky PCV valve or the wrong PCV valve (one that flows too much air for the application). If somebody replaced the PCV valve recently, they may have installed the wrong PCV valve. The rough idle in all of these cases is caused by "lean misfire." The fuel
Dec 26, 2008 at 1:46 AM