Do I need to change a pump valve to run this PTC NLU?

[89mulletbird]

I switched from a 9/11 lockup to a PTC nonlockup converter and my trans temp runs pretty high now even with a trans cooler. I saw there is something called a nonlockup valve, what does this do - and do I need one?

 

[TexasT]

If you go from lock up to nlu you need that valve for your pump. I'm no guru so I don't know what it does but I bet a search will provide that info.

Posted from the TurboBuick.Com mobile app

 

[pacecarta]

7-ccv summit has them ,
the NL valve can go in by dropping the pan and pulling the lockup solenoid and then remove the original lockup valve and spring and replace with the NL parts , but you also need to pull the check valve and oring from the input end of the transmission , so the trans and converter needs to come back off

 

[GBGN1]

What you are doing with the valve is giving the converter circuit better fluid flow

 

[TT/Ameasap]

I switched from a 9/11 lockup to a PTC nonlockup converter and my trans temp runs pretty high now even with a trans cooler. I saw there is something called a nonlockup valve, what does this do - and do I need one?

This has everything needed to do and pics
http://www.turbobuick.com/forums/th...8-blade-now-converting-to-a-nl-tranny.413600/

 

[89mulletbird]

Thanks, that write-up is awesome. What is less awesome is I have to remove my transmission again.

What would happen if you run a NLU converter without doing this?

 

[TT/Ameasap]

Things would burn up rather quickly. Probably why your seeing high temps.

 

[89mulletbird]

Thankfully I have a working trans temp gauge or I probably would have smoked it..

 

[TT/Ameasap]

Good catch. Glad I could help.