Strange Idle issue
#1
Strange Idle issue
Have a 2003 F-250 with 174,000 miles. Recently replaced CPS and ICP and it's running much better. It normally idles at about 700 rpm. Lately, after driving for any distance above ~40mph, when I come to a stop, the rpm won't drop below about 850 rpm. If I shift to neutral (automatic trans), the idle drops to around 700. At the next stop sign/light, it's back up to around 850.
Any suggestions?
Thanks
Any suggestions?
Thanks
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#8
Ive heard some people talking about this place, but I have never used them.
Coys Diesel | Truck Sales & Repair Baton Rouge & Gonzales
might give them a call.
Coys Diesel | Truck Sales & Repair Baton Rouge & Gonzales
might give them a call.
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Icp solenoid should be verified and looked over with a scan tool to see the actual running pressure 500-700 should be normal, then get that verified by swapping the icp sensor with a mechanical guage. Hows the oil and is the air filter breathing or is it the classic air starved diesal that runs poor? Ive seen a few that never start due to choked air filters.
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