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Old 11-02-2001, 12:27 PM
RSRobbins RSRobbins is offline
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Join Date: Oct 2001
Location: Boca Raton, FL
Posts: 12
I have experienced a similar problem with my '86 420 SEL but it usually occurs after a prolonged driving at highway speed. I was able to verify that it was indeed the idle control valve by giving it a tap of a wrench with the engine then settled down to "normal" (around 600 RPM). My mechanic said that the bugger can be cleaned out...I wonder how that's done...sure would prefer that to spending $300+!!!
Ralph S. Robbins
Boca Raton, FL
'86 420SEL
163k (as of 10/01)
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