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Transmission troubles
Bill, I don't know if it's the same problem but one of the kids that works for me had a problem with his, they wen't around and around trying to nail it down.
If they reset all the codes and replaced the fluid, filter everything was fine, or so they thought. Then the next time he pulled his fishing boat the fluid smelled a little burnt and the tranny would get REAL hot, even with a cooler. The dealer said the only thing left was a rebuild.
He took it to another shop who said the problem wasn't the tranny at all, it was his trailer wiring! It seems there is a sensor that looks for 12v. in the brake light circuit, assuming you are stopping it unlocks the torque converter to allow it to slip. If there is any corrosion, or a short (or even partial short) in the trailer harness that allows 12v. to back-feed the brake circuit, even small amounts of power will cause the sensor to unlock the converter.
They put a new trailer plug on the truck and installed a small rectifier to prevent back-feeds and the problem was solved.
Best of luck.
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Transmission troubles
It's funny how things go around in a circle.
A few years back everybody thought electronics were going to be the way of the future for vehicles, and I suspect in cars that lead an easy life, they are probably a good thing. In a truck that works for a living however, it's another story, especially if some of that work involves plowing snow doing ice control.
We ran F-350's for years, but recently, with the price of trucks edging up every year, we have been switching to 3 ton trucks. They are still mostly built under the 'manual control is better' and 'it has to go a million miles' philosophies. The latest one, a Hino conventional is a dream to drive, rides just like a 1 ton dually, with a 220hp. inline 6 coupled to an Allison 5 spd (with over-drive) it really gets up and goes too. I put a 12' aluminum dump box on it. It was within a few thousand dollars of a new F-350 in price, but is twice the truck.
Best of luck.
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