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Personal Consumer Issues • Transmission flush costs?

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As others have noted, do not let a "shop" flush your transmissions system. Best way to do it is to drain fluid from the pan when warm. This ensures that any particulate is suspended in the fluid and comes out. You will NOT be draining the whole system as there will still be fluid in the torque converter and internal passages. Drain into a clean container and measure amount drained. Then replace this same amount with new ATF into the transmission fill location. Start engine and after a few minutes step thru the gears (park, neutral, drive, etc.) and then when at temp check level per the OEM recommended method. This will either be via dip stick or a plug that is removed and you look for a small trickle of fluid to exit this plug hole (yes, this is messy). If you want to ensure full fluid replacement, then repeat 2x more times during the next two engine oil changes. Depending upon the full transmission fluid capacity, after 3x drain and fills you will have replaced +95% of the fluid over time. I started doing this at 40K & 60K and will repeat one last time at 80K. Should be fine until I sell the car or when I get to ~ 120K miles. Don't believe the "filled for life" lies. Regular transmission maintenance with ATF replacement should ensure a trouble-free transmission down the road. :beer

Note:
I use a synthetic ATF fluid from Valvoline, but others will insist to get overpriced fluid from dealer. This seems fine for my Chevy Traverse and Kia Soul. I look for ATF when on-sale and purchase at a good price. I can usually get the ATF <$18/gallon.

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Statistics: Posted by AllMostThere — Fri Jul 26, 2024 11:44 am — Replies 44 — Views 1946



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