Mechanics

POOR RUNNING

2006 Ford Truck

Engine Performance problem
2006 Ford Truck V8 Two Wheel Drive Automatic 104000 miles

After warming up when you come to a stop the RPM's drop very low and it sounds like a rod is going to come out then I press on the gas to raise the RPM's and it smooths out again. It does not do this all the time. Any suggestions?
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Smattace
July 5, 2010.



Clean out the idle air contdrol valve and EGR valve and test the throttle position and mass airflow sensors.

Rasmataz
Jul 5, 2010.