Question about 1988 Chevrolet K1500

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Runs low rpms - 1988 Chevrolet K1500

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Most likely problem is with the throttle position sensor.It will not set a code but will cause problems.Also if by low r.p.m.s you mean it will not rev up along the road,say 40 m.p.h. max on the level then you need to replace the catalytic converter,if it's plugged then you can't get rid of the exhaust as fast as you are trying to expel it ,there-for, no throttle after what the exhaust is willing to get rid of.

Posted on Aug 26, 2010


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