reverse is slipping

 

AOD or E4OD? Is the fluid full and clean, not burnt?

I know typing on a phone is a pain, but you really need to type more than 3 words when asking for help. This is an Internet forum, not a Twitter channel.

 

I have a 92 Ford F150 when I put it in reverse in cold weather it does just fine when it's fluid warms up it will not go into reverse but first second drive and overdrive does just fine

 

I have a 92 Ford F150 when I put it in reverse in cold weather it does just fine when it's fluid warms up it will not go into reverse but first second drive and overdrive does just fine. It does have the 14 bolt pattern pan

 

That's an AOD, which is not electronic.

Is the fluid FULL, CLEAN, NOT BURNT? Have you ever drained the fluid from the pan and torque converter and changed the filter?

Most likely bad internal seals, reverse servo, reverse clutch.

Regardless, it sounds like you need to take it to a transmission shop.

 

x2

Just take it to a tranny shop and have them work on it.