Originally posted by Majisto:
It's the butterfly valve sticking in the throttle body. It sticks shut with all the carbon build up. Clean it out and your problem should go away. Think about it, all the throttle cable does is open the butterfly. What else would cause it to stick?
I agree. I'd say 3/4's of all of the Contiques I've had have had this same condition. There are two fixes. One, clean the TB very well. Pay particular attention to where the butterfly make contact to the TB bore. Keep testing it as you clean it by just rotating the throttle cam by hand. Best to clean it if you can remove it from the intake. If it is spotless and still sticks you can adjust the throttle stop screw to keep the butter fly from closing to the point of sticking. Sometimes the bore is scored and this is the only quick fix to keep it from sticking. Since there is no head on the screw to adjust it all you need to do is turn it with a pair of vise grips. You will only need to turn it a little bit(1/8 -1/4 turn). Just enough to keep the butterfly from sticking. When you're done disconnect the battery to reset the PCM the reconnect and drive as usual. The car may idle high for the first couple of starts, but it will adjust automatically once the PCM relearns the new TPS postion. I've done this dozens of times.
Parting out 95-97 Contours/Mystiques. Contact me directly at ALFIGOLS@yahoo.com if you're looking for a particular part.
| 
