1992 Plymouth Grand Voyager Logo

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Posted on May 09, 2009
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Idling rough - 1992 Plymouth Grand Voyager

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  • Posted on Feb 02, 2010
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Most of the time this model idles rough the fuel pump is responsible. Other causes the Map Sensor, vapor in the fuel line, dirty spark plugs, and in some cases bad fuel. You can try using good fuel system cleaner and filling up with high octane gas, it should be noted that additives added to some commercial gas suppliers don't sit well with some cars, (Shell sells good gas) and going for a long ride and see if that clears it. In addition you might try adding riselone to your engine, or marvel mystery oil.

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