I know there are updated trans bypass valves for 6 and 8 speed trans but is there such a thing for the 10 speed? Nothing mentioned in the service bulletin and even the dealer had no idea. I have a 2019 Denali 6.2L gas, 10 speed with the aux trans cooler that comes with the towing package. Would like to get the temps down from 200 degrees.
Is there an updated trans bypass valve for 10L90?
- Thread starter topaq
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StephenPT
Full Access Member
PPE is making one for the 10L80 with the 3.0 Duramax. Not sure why it’s engine specific… if it’s close enough to what you have maybe you could find a way to make it fit your 10L90?
ppepower.com
2019-2023 GM 3.0L w/ 10L80 Transmission - Transmission Fluid Thermal Bypass Valve
Transmission Fluid Thermal Bypass Block - GM 3.0L Duramax 10L80
ppepower.com
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