Northstar Engines and System Technical Discussion Discussion, 02 dts high idle prob in Cadillac Engine Technical Discussion; my o2 dts idles way too high almost all the time like 1800 in neutral and pulls hard in drive ...
Automobile(s): 02' Deville (H.G. club-sold) 02 DTS black on black
02 dts high idle prob
my o2 dts idles way too high almost all the time like 1800 in neutral and pulls hard in drive and takes off on its own. i checked the plenum for leaks and cleaned the tb. the throttle cables have no tension on them and the tb snaps shut nicely.
so i took the the iac valve off(sample pic below) and cleaned it. but i could not move the plunger by hand, is that normal? any other help trouble shooting this is appreciated.