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Ended up being the Trans ECU behind the kickpanel. We swapped it out with another one of our trucks and she’s back rolling, thanks everyone for your assistance.

Did i not post this in the right form? I had a hard time finding one that i could post on

Fluid level is good

Still fairly new member 01 s&s m1088a1 trans went into limp mode (stuck in 2nd gear) when stoped shut off engine tryed to refire and nothing only cranks when starter solenoid is crossed over Wtech lll will not light up swaped it out with another and nothing Put it in another one of our...

Hello, We could not communicate with the ECU after trying multiple things. We ended up replacing the ECU that is on the side of the engine and it took care of the problem.

Thanks Bud!

Thanks for the input everyone, I have printed out this thread for my guys to read. Do you know where i can find the technical manual for this truck? It does have the 3126, we can not find the engine computer, where would that be located on the truck? We also did not see a No Start Button in the...

Thank you both for the replies: tennmonger: we have a few of our mechanics tinkering with it and i believe they have bleed the system of air, it has the 3116 in it with the circuit board behind the passenger side dash. I will forward this to my guys tomorrow when they get back in the office for...

Hello, I have recently purchased a 2001 Stewart & Stevenson M1088A1 Having issues getting it to start. Seems like the ecu is not allowing it to get fuel. I have installed (4) New Batteries Checked the Fuses and Circuit Breakers Repaired a fuel leak at the fuel filter (simple o-ring...