Fluid flush or pan drop? - Ranger-Forums - The Ultimate Ford Ranger Resource

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Old 09-17-2016
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Join Date: Sep 2016
Location: Phoenix, Arizona
Posts: 13
Fluid flush or pan drop?

97 xlt with the v6 4.0 engine. I have no idea what transmission it is. Anyways I need to do a tranny fluid change and I was told to not flush and only drop the pan. I have no idea if it has ever been flushed before. It has about 61,000 miles on it. Should I flush or just drop the pan?
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Old 09-18-2016
Join Date: Jul 2006
Location: Minnesota
Posts: 1,308
I've always just dropped the pan and changed the filter.
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Old 09-18-2016
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Join Date: Jan 2014
Location: Vancouver, BC
Posts: 7,249
1997 Ranger 4.0l will probably have a 5R55E 5-speed trans, but..............
Some did still have the 4R55E 4-speed
Depends on the assembly plant they were made at.
If you look at the drivers door label find the TRANS code letter, bottom of label
T = 4R
D = 5R

Yes, just drain replace filter and refill.

If you are having any problem, flushing won't help and may hurt, if you are not having problems then flushing "might be OK" but won't help much.
Engine oil and trans oil flushing were "invented" by shops because they are profitable and fairly safe to do, since if a problem occurs they can say it was a pre-existing condition, the flush just found it for you, "thank goodness it didn't strand you somewhere", lol.

Check old filter for debris
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