2002 Dodge Caravan eratic shifting

2002 DODGE CARAVAN
175,000 MILES • 6 CYL • 2WD • AUTOMATIC
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VIPERBOY
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I've got a 2002 Doge Caravan and the transmission shift very eratically, also the speedo bounces all over the place. I'm wondering if the speedo has anything to do with the eratic shifting issues ? I've replace the output speed sensor with no luck. But if I take off from a stop and I'm able to go threw all the gears well then it's fine but if you slow down and it downshifts hard then I'm stuck in second t'il I shut the engine off. Any help would be greatly appreciated.
Apr 17, 2009 at 3:26 PM
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DOCFIXIT
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Did you replace the Vehicle Speed sensor on trans?
Is check engine light on?
Apr 17, 2009 at 3:35 PM
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VIPERBOY
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output speed sensor has been replaced as per scanner diagnostics and yes the engine light is on. It said something along the lines of improper shifting from first to second ,eratic shifting and the was another code along the lines of egr gas vacuum leak ? Hope this helps you.
Apr 17, 2009 at 3:43 PM
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DOCFIXIT
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Would be a great help to know codes in P0xxx format.
Apr 17, 2009 at 3:46 PM
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VIPERBOY
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P0700 for the tranny and I'm not sure on the second code but it said "Evap Gross Leak"
Apr 17, 2009 at 3:54 PM
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DOCFIXIT
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O.K. for a P0700 without a scan tool to diagnose TCM the proscribed action is erase code drive see if code resets.
Apr 17, 2009 at 4:15 PM
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VIPERBOY
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I will go back to the garage on Monday have them erase the codes and let you know.

Thanks,
Apr 17, 2009 at 4:25 PM
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DOCFIXIT
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An Auto zone will do for free. Have them code it then ask to erase then post codes and let me know if it resets. And will go to Plan B
Apr 17, 2009 at 4:53 PM