Question about 1991 Plymouth Acclaim
Remove the A.I.S motor and give it a good cleaning (especially the pintle -pointed end ) with throttle body spray cleaner, as well as the port you remove it from, then re-install and try it. That will usually cure it, and if it starts to happen again, replace the A.I.S. motor. Doesn't hurt to give throttle plate and area a spray while your at it.
Posted on Oct 12, 2010
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Posted on Jan 02, 2017
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Jan 02, 2016 | 1999 Honda Accord
May 03, 2014 | 1995 Plymouth Acclaim
Engine stall or RPM fluctuates
is commonly caused by a dirty automatic idle speed control valve and
throttle valve. Buy a can of throttle valve cleaner (do not use
carburetor spray cleaner!) from NAPA or Carquest (made by CRC
chemicals) and spray it into the air intake while the engine is
running, use up about 1/2 the can, engine will try to stall hold the
speed up, shut it down and let it soak for 30 minutes, restart and
blow out the remaining fluid, shut it down and disconnect the
negative battery cable for 5 Min's to reset the base idle control
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