P0700? And no lock up on my converter

[derek06]

I don't know if they are related or where to start, we just built the transmission this week and today was the first day driving it. Just about every time I start it the check engine light comes on and it's p0700 could that be electrical or valve body, I have no idea where to start but I checked all the plugs on the trans and they all seemed to be in. Also we logged it and noticed its calling for lock up but not. Any help would be greatly appreciated, thank you

 

[Harbin_22]

P0700 is just a generic code telling the ECM there is a fault in the TCM. Could have left the solenoid for the converted in the valve body unhooked. Need a better scan tool to reqd the trans codes

 

[juddski88]

Scott should be able to fix it

 

[derek06]

Yeah might be making a trip there just didn't want to bug him if we could fix it

 

[derek06]

Efi live said p2761 if that helps

 

[juddski88]

Who built it?

 

[derek06]

My brother put it together, think we are going to drain it can check the plug and selinod tomorrow after work and see if its that...

 

[Harbin_22]

Sounds like that could be the problem. Hope that's all it is

 

[derek06]

Well checked the harness and plug into the trans and all were good. Manually locked it with efi live on the lift and hit the brakes and stalled out the truck... Could it be tcm?

 

[derek06]

I went from a stock converter to a triple disk does anything in the trans tune need to be changed for it like the torque converter ramp on rate or anything else?

 

[Bustedknuckles]

I went from a stock converter to a triple disk does anything in the trans tune need to be changed for it like the torque converter ramp on rate or anything else?

No it doesn't. Id say you put something together wrong.....

 

[slipclutchms]

Tuning doesn't need to change at all for the triple disk.

 

[derek06]

No it doesn't. Id say you put something together wrong.....

But if it went together wrong wouldn't it not work at all? It locks when done manually

 

[Mike L.]

Check wire 71 at TCM for voltage.

 

[derek06]

Thank you Mike it ended up being the selonoid being bad once it warmed up it wouldn't work put a new one inand works beautiful now

 

[juddski88]

Are you using a homemade TCC lockup switch?

 

[derek06]

No

 

[juddski88]

very odd that it just stopped working