P0776, P2724, P0770 w/ Built Trans?

[Cornell]

My friend Austin had his Allison built by Mike L. summer of 2008? Suncoast IV, billet input/output shafts, C3 oiler and I think that's it. Well his truck hit 60k miles and the dealership told him to have his trans fluid flushed. So he agreed and they "flushed it." Well he called me the other day and I didn't have a chance to look at it until today. It had thrown those codes plus shift range inhibited. So I jumped under the truck and it doesn't look like they put a new spin-on on it. I checked the fluid and it didn't look or smell burnt.

He put 240 highway miles on it after the fluid change. He was in 6th gear the entire time, except for when it went into limp mode when he was 1/2 mile from home.

Mods he has done to it: Lift pump, DSP5 with a race tune, 5" MBRP exhaust and then the built trans and that's it.

I'm lost, please help

 

[paint94979]

My friend Austin had his Allison built by Mike L. summer of 2008? Suncoast IV, billet input/output shafts, C3 oiler and I think that's it. Well his truck hit 60k miles and the dealership told him to have his trans fluid flushed. So he agreed and they "flushed it." Well he called me the other day and I didn't have a chance to look at it until today. It had thrown those codes plus shift range inhibited. So I jumped under the truck and it doesn't look like they put a new spin-on on it. I checked the fluid and it didn't look or smell burnt.

He put 240 highway miles on it after the fluid change. He was in 6th gear the entire time, except for when it went into limp mode when he was 1/2 mile from home.

Mods he has done to it: Lift pump, DSP5 with a race tune, 5" MBRP exhaust and then the built trans and that's it.

I'm lost, please help

I would get in contact with Mike ASAP... how was the fluid level in the trans?

 

[Cornell]

I would get in contact with Mike ASAP... how was the fluid level in the trans?

Fluid level was good

 

[paint94979]

Fluid level was good

just curious why did he let them do work on his transmission? All he had to do was change the fluid takes 15 minutes

 

[BlkMax]

Mike L had a thread on trans oil for aftermarket clutches. I think he said to use Dex-III instead of Dex-VI like they recommend for stock Alison's.

I think he said that the Dex-VI would slip the clutches of the built trannys.

This thread: http://www.duramaxdiesels.com/forum/showthread.php?t=19666

 

[Cornell]

just curious why did he let them do work on his transmission?

Honestly because he doesn't know any better, his fluid was fine and the trans was built at 30k.

I wish he would have called me first

 

[TIM Z]

Did the dealership joy ride in it?

I had a p0776 code. Talked to Mike he said thats the " heart attack " of the Allison IIRC.

Eric tore my trans apart and found burnt C3's.

 

[Cornell]

Did the dealership joy ride in it?

I had a p0776 code. Talked to Mike he said thats the " heart attack " of the Allison IIRC.

Eric tore my trans apart and found burnt C3's.

I just went and checked the fluid again because we rolled it into his shop and its an orange color When I first checked it I was outside in the dark and I just used the light from my phone to look at it. Not the news I was hoping for.

 

[Mike L.]

Give me a call with some info in the morning.

 

[Cornell]

Will do