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1997 siverado patrick farley 7-8-08  
I just bought this truck with the check engine light on....I bought a hand held obd2 and found manufacturers shift code...talke to my mechanic and he said no biggie keep driving...worked for several months and now it wont go into 2nd gear...shifts from 1st to 3rd when i let off of the gas...speedo works fine and everything else is fine...had fluid and filter changed just before this happened....have they pinched a wire or do i need to replace something?
Re: 1997 siverado Mr. Lt1 7-20-08  
I got you, drop your transmission pan, you have a 1-2 3-4 shift solenoid, it costs about 14 dollars per solenoid. It's cheaper if you get it from the dealership and when you do this ask them to print you a diagram of where the solenoids go. Now make sure that when you doing this you disconnect the battery because if you dont your gonna have to replace your pcm and get it reprogrammed. While you got the pan dropped repleace both solenoids the filter and put synthetic back in there and I garantee you it will run stronger and longer.
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