6.7 with Ford 6R140 transmission
Can you change the fluid in this tranny DIY like you could the old 5R by draining the pan then disconnecting the cooler lines, starting the truck and drain and fill at the same time to remove the rest...
Forum Discussion
brooks379 wrote:
Can you change the fluid in this tranny DIY like you could the old 5R by draining the pan then disconnecting the cooler lines, starting the truck and drain and fill at the same time to remove the rest of the fluid as it fills with new ? I hear there is a thermostat in the 6R and you need to hot flush it ? Any info ?
To "properly" flush and replace the 17 qts of fluid, a hot flush is required.
