Why would the ECC want a high idle?
Posted: Mon Mar 27, 2006 7:09 pm
I've had my idle go very high twice today. Instead of 500rpm at idle in gear (auto tranny) it would be closer to 1000rpm and if I put it in neutral it would jump to about 1500rpm. It does not seem to quit doing that on its own. I tried driving around for a while and it would not go away. Just turning the truck off and back on corrects the issue and it does not do it anymore.
I tried unplugging the IAC while it was doing the high idle and the idle immediately dropped back down to normal. I plugged the IAC back in and it jumped right back up to 1500rpm. That leads me to believe the ECC is opening up the IAC but why? Simply turning the truck off and back on corrects the issue.
In the last two or three weeks it has done this twice and then today it did it to me two more times.
Any clues?
Thanks
Malcolm
I tried unplugging the IAC while it was doing the high idle and the idle immediately dropped back down to normal. I plugged the IAC back in and it jumped right back up to 1500rpm. That leads me to believe the ECC is opening up the IAC but why? Simply turning the truck off and back on corrects the issue.
In the last two or three weeks it has done this twice and then today it did it to me two more times.
Any clues?
Thanks
Malcolm