05 CV713

Thank you so much for all your help, I will ask about the turbo and injectors.

Thank you Mack Pro, do you know of any diesel shops that could reprogram the ECU for better performance?

As I understand this combination had a torque limiter on the trans, is there a way to bypass this. I notice when I am loaded the truck has a real problem with hills, the dealer says Mack denied me for an HP upgrade and that 427 was all that was allowable with the combination I am equipped with.

On 6/28/2023 at 9:57 AM, Mackpro said:

Your truck was built 1/19/05. AI427 engine , T310M transmission, has the 92/93 series carriers with 4.64 gears, the 4.64 gears are a must with with a AI engine and any tire taller than a 22.5 full-size. Your fan clutch is a Horton Drive master air fan. Your engine ECM was replaced back in May of 2011 and is up to date software wise. Your VECU vechicle ECM is at software level Step12 and would be great if it was reflashed to Step12B , helps with throttle response. The 460 XT program was only for early ETECH engines 1998.5 to 2001.5. Yours could possibly be bumped to 460HP with a software update. However the turbo would have to be changed to the bigger one. If you have a good local dealership that can submit a HP request. 

Mack pro, thank you so much, it’s awesome to get an accurate run down of what equipment I am working with. I have an appointment at the dealership next week and will ask about the software up grade. Thank you for your help.

Thank you Joey Mack I will check it out and get back with more info.

I am not sure about which carriers I have they are 44’s according to the door sticker.

Joey Mack that’s awesome, Portland is a nice area. Plenty of Bulldogs running around there.

033167, I cleaned the connections at the ECM using CRC contact cleaner and the fan issue is cleared up today the truck ran awesome. Still curious to know if I could turn this up? I have heard about the 460XT program hoping that would be possible.

Hi everyone I have an 05 CV713 with what I was told was a Ai 427, it has the Mack multi speed reverse trans, basically an 8 speed. I have been replacing EUPs and had to do the speedometer sensor on the tail shaft. 
    Now I am struggling with another no power situation, first it gave me a check engine light and the code came back as air temp sensor after replacing that sensor there has been no improvent except that the engine light doesn’t come on. 
       The truck is pretty numb and the fan comes on and seems to stay on all day, even in the morning before it comes up to temp. Any input would be greatly appreciated. The number on the ECM is 12MS530AM, is this the number for a 427?