How do you control a 6L80E or newer? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

davepl · 03-25-2017, 01:07 PM

My understanding is that the newer trans like the 6L80E have their control module internal, so that normally the engine computer communicates with, but does not "control", the transmission.

If you were going to put a 6L80E in one of our trucks behind a carb'd big block, for example, what could you use as a standalone box to get it running?

I have a 4L80E with a TCI box that controls it, but I think it's different with these later transmissions... I just don't really know.

03-25-2017, 01:07 PM	#1
davepl Registered User Join Date: Aug 2006 Location: Redmond, WA Posts: 6,332	How do you control a 6L80E or newer? My understanding is that the newer trans like the 6L80E have their control module internal, so that normally the engine computer communicates with, but does not "control", the transmission. If you were going to put a 6L80E in one of our trucks behind a carb'd big block, for example, what could you use as a standalone box to get it running? I have a 4L80E with a TCI box that controls it, but I think it's different with these later transmissions... I just don't really know. __________________ 1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible

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