IAC valve question
05-06-2005, 08:17 AM
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IAC valve question
This is a question concerning the installation of the IAC valve on an '85 190e.
Which way should the flow arrow point ? Towards the plenum (bottom) or towards the valve cover (top) ? I also see a black plastic adjustable knob on the IAC, is this to fine tune the idle ?
Which way should the flow arrow point ? Towards the plenum (bottom) or towards the valve cover (top) ? I also see a black plastic adjustable knob on the IAC, is this to fine tune the idle ?
05-06-2005, 03:58 PM
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84 190E
Originally Posted by Clem
This is a question concerning the installation of the IAC valve on an '85 190e.
Which way should the flow arrow point ? Towards the plenum (bottom) or towards the valve cover (top) ? I also see a black plastic adjustable knob on the IAC, is this to fine tune the idle ?
Which way should the flow arrow point ? Towards the plenum (bottom) or towards the valve cover (top) ? I also see a black plastic adjustable knob on the IAC, is this to fine tune the idle ?
First off a lot of your problem can be stemming from a leak
"Pest conditions:
Intake system without leaks. Slide in idle speed air valve operates freely. Engine oil temperature approx. 80 “C.
Coolant temperature sensor, decel fuel shutoff microswitch and idle speed detection throttle valve switch (RijF$ KAT) in order(07.3-l 21)
or make sure the intake boot that attaches to the throttle body has no leaks - that is the one greatest cause to rough idea amoung other running problems
