2001 Expy mis while stopped in gear
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2001 Expy mis while stopped in gear
For the last couple of weeks I had a CEL for low flow egr. I vaccum tested the valve it was good. Changed the DPFE did not help checked for clogged ports no problems clean then I replace the vaccum solenoid the light isw off and has not come on for about 60 miles. The surging I had while driving is now mostly gone. However if im sitting at a light in gear at idle it almost missed or like the egr is opening and causing a short quick miss. Idle in park is fine. I have checked all the coils and they are firing fine will the pcv valve cause this.
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ok update ran fine for 4 days no CEL no back on and missing or hesitating again. I have checked everything that everyone has said. My question when I do vacuum test on EGR valve it kills the engine which means good but could it still be malfunctioning. I still get the flashing CEL which is misfire the it stays on as low flow. All cleaning relaced DPFE vaccuum soleinoid changed pcv and chedked hoses. tried to tak off the egr but there is a line that is in the way that runs from evap above brake booser to back of the motor does that just unplug from the motor. HELP
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Katt
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
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Apr 13, 2000 07:54 AM
