please help, Ive been wondering for a while.
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Originally Posted by Aeromac121
I'm not sure if this would prove anything or not but you could try unplugging the wires from the Idle Air Control Valve and then start the van and see what happens. I'm not a mechanic so I don't know if this could potentially damage your van or not. Just before posting this I tried it myself on my 93 aero 3.0. It started and ran at a much slower idle with minor fluctuations in RPM. I wouldn’t run it like this for more than 20 seconds or so. Just long enough to observe the effects. Also like some other people said, you might want to see of there are stored trouble codes in your vans computer. here is a link to a thread on this forum that explains how to do it:
https://www.ford-trucks.com/forums/s...86&postcount=3
You basically connect 2 things together and then get in the van, turn the key to the run position and count the number of times the check engine light flashes. Once you count the flashes look up that number to see what the code means. I would post a link to a page that has the codes and their meanings but I just tried that and the forum ate my post. Just do a google search for:
EEC-IV trouble codes
Then click on the first link in the search results.
https://www.ford-trucks.com/forums/s...86&postcount=3
You basically connect 2 things together and then get in the van, turn the key to the run position and count the number of times the check engine light flashes. Once you count the flashes look up that number to see what the code means. I would post a link to a page that has the codes and their meanings but I just tried that and the forum ate my post. Just do a google search for:
EEC-IV trouble codes
Then click on the first link in the search results.
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I just found out a bit more info, when I turn the key forward, (but not all the way to turn the engine over) The check engine light comes on... Dose that mean anything? Becouse when I do start it the light turns off..
Post Fiend
Joined: Apr 2005
Posts: 5,720
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From: Washington state
Thizzin,
great pics
the CEL coming on with key on/engine off is normal, power up self test of the ECU/PCM powertrain control computer
please post the codes when you have a chance
disconnecting the control power to the IAC with resulting drop in rpm indicates that IAC is working
great pics
the CEL coming on with key on/engine off is normal, power up self test of the ECU/PCM powertrain control computer
please post the codes when you have a chance
disconnecting the control power to the IAC with resulting drop in rpm indicates that IAC is working
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