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Old Feb 1, 2026 | 11:05 AM
  #1  
Roman R's Avatar
Roman R
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Trans or torque converter

Hey, my truck is a 1990 ford f250 with a 7.3 idi and a e4od 4x4. Ever since I got the truck when going up hills or under high stress the truck should shudder and grid. Yesterday I was pulling a trailer that weighed about 5-6k. After about a 30-40 min the trans started making a whining and started shifting odd I then came to a stop at that point the truck didn't take off right away and hunted for a gear before taking off I then went to another stop sign where it took off just fine. I then came to a hill and lost all gears and power. Engine runs fine. I then sat there for roughly 20 min before I started it again and drove it half a mile to a gas station where it stopped again. I then waited a hour for a friend and drove a very short distance and parked it. At that point it was making a horrible screaming noise and when I shut it off it sounded like something was grinding or spinning after. To me it sounds like a torque converter but I can drop the money on that and that not be the issue. What's the best way to tell or has anyone able to at least be sure about this?
 
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Old Feb 1, 2026 | 11:02 PM
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With the behavior you have described, combined with the grinding and screeching, I recommend overhauling the transmission. I'd give 99.7% chance something pushed a bunch of metal through the whole transmission as it started giving up.
 
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Old Feb 2, 2026 | 09:26 AM
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Front pump failure. Considering the age and not knowing the history, a rebuild is my guess. There are so many updates if that transmission is original.
 
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