1996 Dodge Grand Caravan 3.3liter with automatic transmission.
My speedometer and gas gage work erratically. My transmission will also shift erratically at times and them sometimes it will work fine. My transmission has been rebuilt ans the 2 speed sensors have been changed and that worked for a brief time and now its doing the same thing again.
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Prefix pe is not a valid OBD II code, however, P0700 = Automatic transmission fault detected.
That is a generic code and usually one or more codes will follow that at some point, but not nessesarily. Dodge Caravan transmissions are fully computer controlled and are plagued with problems. If you are experiencing transmission symptoms including poor shifting and even erratic speedometer readings, reply with your symptoms,we can lead you to the possible cause....Mike
If the transmission will still shift then the problem is in the instrument cluster.Will need to be repaired at the dealer or a speedometer repair shop.If the transmission will not shift then the problem is most likely in the TCM(transmission control module)and/or wiring.Need to have transmission and body computer codes pulled.You will need to go to a professional repair facility to do this because the code pullers they use at the parts stores will not access these codes.
Has anyone had the dash out? If you take the dash out there is a cable connected to the odometer and the speedometer it is just one cable. And some wires going to the gas gage. Check and make sure the cable is connected all the way. The gas gage may also be disconnected somewhere but there could be different problems that cause the gas gage to be disabled. !Never touch two wires at the same time!
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
Transmission and gauges are probably unrelated. My '98 Caravan had 2 bad solder connections on the back of the instrument cluster where the connector attached. It takes about 10 minutes to get the cluster out. The bad solder joints were easy to spot on mine. It took 2 years for me to find the problem, but only 30 minutes to fix it and it hasn't happened again since (almost a year).