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Original post by: Oldmanjeep ,

Title:

1997 Jeep Wrangler 4 Cylinder - High Idle Carburetor

Text:

First cleaned carburetor throat,  linkage and area with carburetor and throttle  cleaner.   Did not help the High Idle.

Took to a mechanic.  They replaced the Idle Air Control Valve by mechanic . They hooked to computer and checked   codes.  Re set.    Mechanic supposedly checked all vacuum hoses for leaks,  none found!    $$$$  Still idles fast!!

I replaced the Throttle Control Sensor - still high idle!!  More $$

Does idle normally at about 800 rpm’s for a minute,  then after short time jumps up to 1600 rpm’s .  Will not return to normal idle.   Throttle control returns to stop and cable not sticking or hanging up.  If you shut off Jeep for a while  and restart it will idle normally for a minute then high again.

Help!!   Any suggestions on fix?

Device:

1997-2006 Jeep Wrangler

Status:

open