Sea Foam Trans Tune to improve shifting on 2004 Chevy Tahoe [SOLVED]

Transmission shifting a little late on 2004 Chevy Tahoe with 145k miles. Can I use Sea Foam Trans Tune to improve shifting?

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Jim D.
Jim D.
3 months ago

Good question. If the hard shifting is caused by varnish in your transmission system, Sea Foam Trans Tune will help clean it up and smooth out the shifting. Just add a can of Trans Tune to the transmission fluid (as long as the system isn’t overfilled, you can just add a full 16 oz can without draining any transmission fluid beforehand).