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1968-Present E-Series Van/Cutaway/Chassis Econolines. E150, E250, E350, E450 and E550

fast idle

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Old Jun 19, 2017 | 10:25 PM
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July1994's Avatar
July1994
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fast idle

I had a v8 2001 e250 camper van that started up in fast idle with no problem. Now I have a 2004 e450 V10 camper. It will start but then stall or will start but will be slow to build up to 800 RPMs. It has no fast idle at all regardless if the outside temperature is warm or cold. I’ve cleaned the idle air control valve and the mass air flow sensor.

What is the black adjustable ****, on the idle air control valve. The one I have has two ports and one is blocked by a piece of plastic that looks like it was manufactured to fit into one of the ports.


Thanks for the help




 
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Old Jun 29, 2017 | 06:37 PM
  #2  
98Econoline150's Avatar
98Econoline150
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Check basics like for vacuum leaks, loose connections, etc. Hook up a scan tool to see if there are any pending codes. It sound like it could be an Intake Air Temperature Sensor.
 
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