Trans slipping in drive but fine in overdrive.

Either the transmission is shot completely or the filter is clogged and needs replacement and new fluid added

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_677dced97ad9bddf

Its the overdrive sensor 3rd gear you will slip with 4speed band trans
This overdrive gear setting if your sensor is not kicking in then you are due for trans maintenance as 3rd gear is shredding slowly away learned this from dirt track quarter mile super stock racing pray that your gear is intact as a trans shop with micro snake cam can only determine the length of time you have on your gears and trans inspections are free threw amco certified shops

I have a 92 Crown Vic first and second works fine reverse works fine when it shifts in the third gear it goes to slipping and overdraft can you help me fix this problem thank you

This is a common issue in this trans and is terminal. An overhaul will be necessary

you need a rebuild, your overdrive clutch is worn out. do not drive in overdrive until the trans is rebuilt.

this seems like a problem of a loose belt inside your trans. if it hits overdrive and slips into nuetral till you lower the rpms then yea its a problem inside the trans.

i got a 1996 chev. blazer s-s10 4.3 engine 4x4.problem i got is i got 1st 2nd & overdrive & reverse but no 3rd gear what should i do

on automatics the overdrive is actualy not in the trans at all
it's a small cluch in the torque converter and is not repairable, the only fix is to replace the torque converter, but then you say it races free as if not in drive?
That's a failure of the forward clutch

I'm afraid you need the trans overhaued, I recomend the dealership and NEVER places like Mr Transmission type, they'll overhaul it wihout any testing and cannot diagnose, just overhaul and overhaul ultil eother you're broke, or give up

In a 250 you most likely have either a C-6 (Aluminum case) or a FMX (Iron case) both are good transmissions and again the overdrive is the torque converter, be sure they replace it too

Good luck

well the low cost way to go first would be to try and change the trans fluids. If the problems still remains the it may be an internal problem

Your transmission fluid contain water,thats why the colour of the fluid changed to pink.And of such the clutch is slipping causing the engine to reve up before shifting - Check transmission cooler.