Chrysler Repair: possible bad egr valve: no idle/stall slowing down, chrysler cirrus, 1998 chrysler cirrus

Question
my duaghters car is a 1998 chrysler cirrus 2.5 6 cyl..recently it has started stalling. it stalls when sitting still sometimes and stalls when she comes to a stop at stop signs and traffic lights. i have replaced plugs wires distrib cap rotor switch. i have looked at egr valve. with motor at normal operating temp i have had someone rev engine up at alittle over 2000 rpms..valve doesnt move and when u let it return to normal rpms it will shut down..is there an alternate way to test egr valve to make sure that is the issue before i buy another and replace it? also..do u think that is what the issue is?

Answer
Hi Ron,
That is a very likely cause of the failure to idle, stall when slowing down. The chances are it it sticking slightly ajar which leans out the mixture. There is a good chance you can free up its action and avoid having to replace it. You will notice a slot in the stem (or a ridge) and that with a screwdriver you can move the stem toward the round vacuum-operated top against spring-action which is trying to keep it closed. I would spray some WD-40 on the stem where it enters the body of the valve proper, then try moving the stem back and forth to free up the action. If you can do that such that the spring will drive the stem to a dead stop in the closed position then that should solve the problem. Then you should see the stem move on it own when you do the revev/return to idle with the gas pedal. This is almost a routine maintenance sort of issue with these egr valves, so keep it in mind when it returns later.
Roland
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