Thread: SC High idle
View Single Post
sabeo.m sabeo.m is offline
Ambitious Outsider
 
sabeo.m's Avatar
 
Join Date: Jun 2007
Location: Chicago
Posts: 1,005
Garage
Question SC High idle

Hi everyone, i did a quick search and couldn't find the answer i was looking for...Hopefully someone can chime in.

I'm getting idle @ 3k rpm's after shutting down the engine (hot) and starting it back up again anywhere after 10-15 minutes. If i wait about a 1/2 hour to 45 minutes, the engine ides where it should. Any thought's? When this happens I have to slowly get into gear and then let out the clutch so that the RPM's drop, but the moment i plant the clutch pedal the RPM's increase again until I can begin normal driving. I was thinking it was the Idle Control Valve/frequency valve, the Auxiliary Air Regulator or EGR Return Valve-not sure which one...

My CIS is in pretty good shape, all new vacume hose's and air box/seal. air
valves and the above mentioned are original. I appreciate any help, TIA.
__________________
1988 3.2 Cab
2005 997.1 C2S
Old 09-14-2010, 05:56 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)