My 1998 F-150 has 46,000 miles on it and I want to change the fluid. I bought the truck used from a Honda dealership in my area almost 2 years ago and it had arounds 30,000 miles on it then.
Is it necessary or recommended to drain the TC also or can I just drain the pan, change the filter and refill it?

Thanks

 

Drain the TC as well. It holds a substantial portion and has a drain plug (many vehicles don't). So, do both and a filter.

 

What Max said! About 40% of the ATF is in the TC.

 

Thanks guys. It isn't necessary to blow out all the fluid in the lines too is it? I don't think the 2 quarts in the lines would be that big of a deal.

 

Some people use a flushing machine. Some people manually flush or blow out the lines (several methods). What was previously mentioned is perfectly adequate and has been done for many decades.

 

Thanks Max and everyone else for the input.

 

You're very welcome !!