Vac switch and evap can - Off-Road Forums & Discussion Groups
Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

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post #1 of (permalink) Old 09-27-2000, 12:49 PM
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Vac switch and evap can

I'll lay out the situation for everyone. jeep runs fine till it warms up then idle goes to hell...stalls out at stop signs etc..
Couple questions maybe somebody can answer. First I had a broken vac line from the 4" hg vac switch to the carb.......could this be part of the idle problem. Also on the evap can, I know when you squeeze the main purge line the idle is not supposed to change, but does this mean no change at all---mine changes very slightly.....also a suspect in my idle problem. One other thing, I noticed some water in my air cleaner is this just condensationor is it possibly the pulse air system.
Thanks in advance for the help

89 YJ 4.2 Carter bbd auto tranny

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