Sea Foam for hard shifting and rough idle [SOLVED]
Hello, I own a 2007 Ford Focus. I have 145,000 miles on her now and she is shifting hard and idling seems off. Will Sea Foam Trans Tune for transmissions help solve my car issues?
Good question, Nasheba.
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. It’s a common cause of hard shifting. Trying a can of Trans Tune is usually well worth a shot!
For the rough idle, I’d use Sea Foam High Mileage in your gas tank. Add a full can to a low tank of fuel (1/8 tank or so) and drive until almost empty before refueling. The high concentration does a great job cleaning.
Here’s a more detailed page on rough idle.
https://seafoamworks.com/shop-talk/smoothing-out-the-shakes-how-to-fix-a-rough-engine-idle/
Hope that helps!
Hi Betty,
In manual transmission applications, no. Trans Tune cleans varnish out of transmission fluid systems. Typical vehicles with manual transmission use a “dry” clutch. There are no fluids involved, so Trans Tune won’t help in that case.
In automatic transmission applications, yes. Sea Foam Trans Tune can clean varnish out of valve bodies, solenoids, and fluid passages, helping the automatic transmission shift better and last longer.
Hope that helps!
Jim D.TECH
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