auto transmisson
04-17-2015, 08:26 PM
#1
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auto transmisson
I have a 99 2500 4x4. it started changing gears while driving. from second to thied, second to third. check the batteries and one of the was no good. put a new battery on and now the truck starts off in second gear and wont go into overdrive. no codes yet. thanks in advance
04-18-2015, 01:44 PM
#2
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Check the alternator output and AC noise levels. There is situations where voltage/amperage issues and/or alternator problems cause the auto tranny to freak out.
04-19-2015, 09:31 AM
#3
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Mine started some of the same kind of junk and after a lot of checking found out it was a broken wire in the wiring harness going to the transmission. Fixed that and no more problems. LOL
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