The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 6L80 transmission rebuild, relearn, & TCC wiring

vannatta20 · 03-13-2018, 05:07 PM

Also something is going wrong. The tcc does not lock in first and second gear. It should only lock in 3,4,,5,6.it should only lock in those gears to help with fuel economy. It should not lock in wot either because the stock clutches cannot handle the power.

03-13-2018, 05:07 PM	#15
vannatta20 Registered User Join Date: Oct 2011 Location: Las Vegas, NV Posts: 290	Re: 6L80 transmission rebuild, relearn, & TCC wiring Also something is going wrong. The tcc does not lock in first and second gear. It should only lock in 3,4,,5,6.it should only lock in those gears to help with fuel economy. It should not lock in wot either because the stock clutches cannot handle the power.