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 no 4th gear until 52mph

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PostSubject: no 4th gear until 52mph   no 4th gear until 52mph Icon_minitimeTue Feb 12, 2013 3:36 pm

I have a 1997 chevy p30 with a 4.3l engine and the 460LE trans. 1st, 2nd, 3rd and reverse gears all work fine but I never get 4th until 52mph and some times not at all, at those times if I shut the engine off and restart it will go in 4th at 52mph. shift solenoids have been replaced pcm replaced but not the chip. and a sensor on the trans I think called a shifter position sensor was replaced. I am stuck on this one and it is costing me loads on these misdiagnosis. please help, thanks
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Ben67zl1



Posts : 5
Join date : 2013-03-09
Age : 69
Location : Mcgaheysville Va.

no 4th gear until 52mph Empty
PostSubject: Re: no 4th gear until 52mph   no 4th gear until 52mph Icon_minitimeSat Mar 16, 2013 11:05 pm

I have a 700 r4 and it has a cable hooked to carb and when this was out of alignment I had your problem hope this helps Ben
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