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Andrew1346

Trans keeps going into limp mode, no first gear

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I have an 01" qcsb. Since almost a year ago, every time I pull my camper down the interstate, I will loose first gear. Now, I do tow in overdrive, camper only weighs 5k. I am thinking when the governor sensor blows, is when it downshifts into third. I have changed the sensor three times myself, along with the governor transducer. After the third time I dropped it off at the dealer, didn't have the time or patience to look at it again. They changed the solenoid under warranty twice, the second time they changed the overdrive solenoid I believe? Which included a harness that plugs into the governor solenoid that keeps going. So basically, the governor solenoid has been changed, a lot. The transducer has been changed. The harness has been changed. What else is left? Oh, and to add, the first time it did this, I wasn't towing, I was on the interstate for a three hour trip.

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What code(s) are you getting? That would point you to somewhere to start. It sounds suspiciously like a faulty temp sensor or a temperature problem.

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Not getting any codes.. Checked them the first two times, and I have had a temp gauge on it, never got above 140 degrees. It's got a maghytec deep pan, holds around 6 extra quarts....suppose the trans temp sensor could be out? Think there is a dash light for that, not sure. But if you change the govn solenoid, it's fine.

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Where are you getting your solenoids from? I have been getting mine from cascade transmission parts (their website is down right now). If I remember right, the stock ones are about the size of a 5/8" socket and the ones I get are like 7/8 or 1" socket size. I have never had one go out after I installed them and they drastically change the way the truck shifts.

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It's worth a try, all the solenoids have come from dodge. I was not aware there was an aftermarket solenoid available for it. Could you send me the website address so I can check it out, thanks!

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What code(s) are you getting? That would point you to somewhere to start. It sounds suspiciously like a faulty temp sensor or a temperature problem.

^^^^ this. Can't believe your at 140 towing a camper .

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Limp mode and not shifting 1st to 2nd can be two different things. I don't think we have enough info to know.It is really a good idea to upgrade to the borg warner gp solenoid if you can.

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Where are you getting your solenoids from? I have been getting mine from cascade transmission parts (their website is down right now). If I remember right, the stock ones are about the size of a 5/8" socket and the ones I get are like 7/8 or 1" socket size. I have never had one go out after I installed them and they drastically change the way the truck shifts.

Stock GPS top left, Borg Warner Hybrid top right. (from when I replaced mine.)

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