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Discussion Starter · #1 ·
I have searched this site and others but cannot find the answer to my question. I have a 4x4 2000 4.7 Tundra that will sometimes slam into 2nd gear. This does not happen every time but quite often. I tried autorx and a flush with mobil1 but no cure. My question is this: Why can I move the shifter to 2nd gear, take off and it shifts as smooth as silk from 1st to 2nd every time. Does that mean it could be the valve body, solenoid, or CPU instead of a gear problem? Any help would be appreciated.
 

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Discussion Starter · #4 ·
I added auto-rx for 1000 miles then used the transmission cooler line to drain 2 quarts then fill 2 quarts until I ended up using 16 quarts. Oh yeah, I drained the pan first and added 4 quarts initialy.
 
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