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Re: GM: '93 H, 4T60E, Code 39, loses 4th gear and TCC intermittently
Posted to Transmission Forum on 1/16/1998

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HI THERE WHAT YOU NEED IS A UPDATED GM VALVE BODY THE TCC VALVE WAS SO BUSY THAT IT WORE OUT ITS BOAR YOU ARE GETTING BLOW BY ONLY WHEN HOT . ALSO DONT FORGET TO READJUST YOUR PARK N [...] FAR AS THE ... Login to read more.