Hello All
my 85 380 has a weird high idle problem,the car will start great run at normal idle(about 650 rpm) then after about 5 minutes the idle will climb to 1500 in park/1000(hot or cold engine does not seem to matter) in drive and idle at 1500/1000 for right at 5 minutes,or it might do it for 10 minutes or more,so i tested the ICV(silver tube in front of the engine)and found
high idle_no voltage at the ICV-pulling connector made the idle rise to 1500/1000
normal idle-12 volts at ICV pulling connector raises idle
if i jump 12 volts from the battery to the ICV the idle drops/car dies
i have a print out from what i think is the FSM thats were i got the test from
i didnt do a test at the idle control module(black box on the firewall)
so is my idle control module bad? i put in a new temperature idle switch and cleaned the ICV but that has not changed anything
sorry if this is to long
Kenny