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Discussion Starter · #1 ·
Hey y’all! I bought a $600 2001 tib off Facebook about a month ago and it had a check engine light on. (Obviously). One code in particular was pretty scary; P0734/4th Gear Ratio. I changed out my fluid and coolant thermostat and it went away, but came back shortly after.

Next, I dropped the pan, and it was obvious that something got minced. Metal shards and junk all stuck to the magnets. I searched around on here and saw an exploded bearing is a pretty common cause of my code that I was getting, so I ordered a new part.

Anyways, I refilled my transmission fluid one more time and took it around the block to see if that code was all that was coming up, and to my surprise my code reader no longer pulled up the P0734, but instead pulled up P0733, a bad 3rd gear ratio. My question is, what on earth is going on? Anyone had a similar issue? I’ve got a replacement trans filter and gasket because both were pretty shot.
 
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