Think i toasted my trans today

[pavetim]

I figured my 4-5 or 5-6 clutches were slipping cause towing my boat if you let it downshift and just go it would shudder the whole truck really bad. I just take it easy but today I had to pull over on the highway and when I went to take off I thought the wheels were spinning bit I heard a weird noise and my cell came on, got a p0700 and p0732 codes so guess I toasted my c2 pack? I think u might go with a goerend kit but have to see price of install. If it's a lot of money I might be easier to drive to suncoast and but a whole Trans already built.

 

[NC-smokinlmm]

Might be your converter, you need to have it scanned.

 

[pavetim]

I have efilive, what pids would I use and what to look for?

 

[Bdsankey]

What's generation truck? The forum section you're posting in is generic and you have no info as to what generation you have.

I can upload a PID list/quick setup that will have everything you need PID and controller wise.

 

[pavetim]

2015 silversdo 3500hd

 

[Mike L.]

C2 clutch is 4th gear. C4 clutch is second. It is rare to see P0732. Maybe transfer case.

 

[pavetim]

Transfer case can make Trans feel like it's slipping? Cause yesterday the rpm went up that's why I thought tires were spinning but I guess it was something slipping, then it cranked, set that code and stayed in a gear idk what gear 50mph 3000 rpm so third gear? I pulled over in a few miles shut off and cel was still there but truck shifted fine, of course I took it really easy. I can check with my efilive once I know what pids to run

 

[pavetim]

Testing the Trans should be easy I can log rpm, selected gear, input and output speeds and see if it slips. How do I check the converter, it's job is to slip until it locks up so what can I do to check that?

 

[NC-smokinlmm]

Check TCC slip after lockup.

 

[pavetim]

Will have to tow boat and log to see if it acts up, i drove truck today spiritfully and seemed to run good. But i do think trans is bad, allison with 75000 miles and transynd change 25000 miles ago shouldnt look like this

 

[NC-smokinlmm]

When a converter goes bad it shudders like crazy trying to lock up under load. If it only does it under load when trying to lock up you have your answer.