idle when wet(?)

Chris Dyer chrisdyer at
Mon Dec 2 11:40:40 EST 2002

'87 5kcstq; 200k mi.

I've noticed lately that when it's wet/damp outside, idle fluctuates in a
regular rhythm from normal (8-900rpm) up to 1400rpm. Only happens once
engine is warm. Kinda funny actually--it goes uuuUUP...then DOOWwwn...then
uuuUUP...then DOOWwwn...etc., as if to music.

Looks like I'm in for some fun and exciting electrical short(s) diagnosing.

from chrisdyer at

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