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Idle too high need help

2K views 5 replies 5 participants last post by  AJ 
#1 ·
I was with the crew and i had a chick in the right seat so I had to through it around so I slid it around a corner and now my idle is at 2000 NEED HELP
 
#2 ·
Throttle plate isn't closing all the way, idle speed control valve is wide open, or you've got a vacuum leak somewhere...

1: Listen for hissing of a vacuum leak.
2: Listen for actuation of the ISCV after shut-down (click-click-click-click)
3: Look for any indication that the throttle plate isn't closing against the screw-stop.

--billyM
 
#3 ·
Tighten all the screw clamps on the intake connectors between the AFM and TB??
 
#4 ·
If the PCM offers no hints, the best place to begin looking for problems is with the Idle Air Control Valve/Bypass Air Control. You can try cleaning it and see if that improves your idle speed. A throttle body cleaning is likely to cure the high idle speed as well
 
#5 ·
That condition is USUALLY caused by a vacuum leak.
Multiple places to look.
Old mechanics looked for vacuum leaks with a propane torch. Attach hose to the end(NO NOZZLE) and tape a LONG screwdriver to most of that hose and go fishing.
When you hear the engine speed up, you found a vacuum leak.
The cooling fan may cause trouble with the wind it causes.
 
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