1994 ford explorer eddie

Question edited for clarity, full year make model
Question moved to sub category.

It appears to have history. A bit worrying you say 'kinda changed the filter and fluid'. Most are sealed for life, and the amount of fluid is critical. If you drain, you measure what comes out and replace with the same amount of the right type of ATF.

You are not alone with issues

https://www.google.com/search?q=1994+Explorer+Eddie+Bauer+4x4+wont+go+into+Drive

Schematics

https://www.google.com/search?q=1994+ford+explorer+eddie+bauer+4x4+transmission+schematics

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I would check the u-joints in the drive shaft. both ends. that will cause hard shifting and a clunk when shifting gears as well.

Is the check engine light on ? Have you checked fuel pressure ?

Solenoids in Trans

check all the mount bolt to your transmission.

Which fuse on my 1994 Ford explorer Eddie Bauer controls power to 4x4 switch and lights for 4x4

change the tran filter and fluid please rate me

change fluid and filter

this is always caused by a failed/worn out reverse clutch pack, you must remove the trans and have it overhauled to correct this failure.

If not serviced lately, that would be a good place to start. Filter & oil change on transmission.