Transmission slipping when brake hard

[springbranch]

I've got a 03 Explorer, 4.6, 78k miles.
When I hit the brakes hard at red light, upon stopping the truck acts as if it's in neutral. There is a delay before transmission gets engaged as engines revs up and down for a couple second. Eventually, tranny catches suddenly and shifts into gear.
3- 4 months ago had AAMCO to replace the fluid.
Any thoughts.

 

[swetrid]

Sounds like it is low on fluid, there is a special procedure for checking fluid level.

 

[BrooklynBay]

I agree that it sounds like it's low on fluid. Did they replace the filter when they replaced the fluid?

 

[springbranch]

I agree that it sounds like it's low on fluid. Did they replace the filter when they replaced the fluid?

Yes, filter has been replaced as well.
I guess, I have to take it back to AAMCO to see what is going on.

 

[sethmorgan]

Mine does this sometimes on turns. Had it flushed recently at the dealer. Did it before, does it after.