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Re: idle won't return to normal 200 1980

posted by  someone claiming to be Don Foster on  Mon Nov 13 13:16 CST 2000 [RELATED]

Bryan --

I would walk through a number of service steps.

First, I'd make certain the throttle and linkage are free (not binding).

Next, I'd clean the throttle body and properly adjust the butterfly using the mechanical stop.

Next I'd adjust the throttle switch, and make sure it's functioning properly (electrically).

Finally I'd remove the CIS motor (idle air valve) and wash through it with carb cleaner to wash out any gum 'n gunk. If the motor is electrically worn, it must be replaced. Be certain the electrical connector is clean and that the lugs are shiny.

Also, I'd be absolutely certain the engine has no vacuum leaks and that the intake manifold is tight.



Don Foster (near Cape Cod, MA)





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