Question about 1989 Plymouth Reliant

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1989 Reliant K running poorly

My 1989 Plymouth Reliant K . Usually idles rough and has a little dead spot when taking off from a standing stop. Will buck at highway speed when gas is let off and I get a really rich running smell during all of this. Also get black smoke when I gun the motor. Last mechanic said my idle control valve was carboned up and he cleaned it. It didn't solve the problem. For the few minutes it runs good it runs so smooth, then the stumble comes back. Any suggestions would be very much appreciated.

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My reliant (89) idles very high when you start it, then settles
down, but while driving it starts to chug very bad. I have new plugs, wires, distribitor cap and rotary button. How do I fix it??

Posted on Jun 10, 2011

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Check the throttle shaft for a vacuum leak.

Posted on Aug 19, 2008

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