Changing transmission fluid?

2004 FORD RANGER
150,000 MILES • AUTOMATIC
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OPIEDOG
  • MEMBER
  • 3 POSTS
This was my husband’s truck and he passed away. The transmission fluid has never been changed. Was wondering what to do about it
May 21, 2026 at 1:52 AM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
I’m very sorry for your loss. If the truck is shifting normally and there are no transmission warning signs, I would recommend doing a basic transmission service, not a power flush.

Use MERCON V ATF in the automatic transmission. Do not use regular old MERCON unless the bottle specifically says it meets MERCON V specification.

Here is a video that can help you.

https://www.youtube.com/watch?v=HJdcWI6m3J4

Please go over this guide and get back to me.
May 22, 2026 at 1:19 AM
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OPIEDOG
  • MEMBER
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Thank you so so much!!
May 22, 2026 at 8:09 PM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
You are welcome :)
May 22, 2026 at 8:10 PM
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