Question about 2000 Dodge Grand Caravan

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2000 dodge grand caravan sport, the check engine light is on, but no codes found after checking with reader, speedometer is jumping all over the place, from 0 to 120 mph, when the speedometer jumps around, vehicle gets jerky, as if loss of power, then surge, then loss. i have changed the speed sensor, it made no change, van still the same. please help

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No codes found because your checking the PCM,
your problem is you need codes from the TCM,the computer for the transmission,since you replaced the speed sensor the other two things that affect a speedometer and transmission are the input and output sensors,they both screw in the transmission.

Posted on Feb 01, 2010

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Posted on Jan 02, 2017

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