[DML] Re: AC and Engine Idle
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[DML] Re: AC and Engine Idle



Ed, 

What you discribed. Tells me that your idle speed switch is not tripping when the throttle 
is at idle. Take a long screw driver and push in on the switch tab while the engine is at 
1500 rpm. I'll bet it drops to normal. Also make sure the idle stop screw is NOT touching 
the stop tab when the throttle is closed. The reason is because the electronic Idle system 
is designed to operate with the plates fully closed. Then make sure the adjustment screw 
for the Idle switch is set to trip the switch. but not too much otherwise it will act like the 
idle stop screw and attempt open the throttle plates from the spring back pressure of the 
idle switch.

If the above steps don't seem to help then check the idle speed motor to see if it is 
moving. ( I've seen a motor that was frozen from a rusted motor bearing) Also do a 
continuity check at the idle switch wire connections.  Has your car ever  idled properly 
since you've had it?  The Normal 775 range

Dennis

--- In dmcnews@xxxxxxxxxxxxxxx, "rdcejc@..." <rdcejc@...> wrote:
>
> Question for you.....   My D idles at 1500 without the A/C on and 1000 when the A/C is 
on.   What is the proper idle speed for the car.
> Ed
> 6944



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