New trans now running right

[350dieselsmk]

Hey guys just put a new trans in my truck last week runs great but bogs Down Alot when I put it in reverse and the passed two days it has been get verry hot. It has plenty of fluid my only gues would be too much fluid? There is also condensation on the dip stick when I pull it out any info would be great I can't affOrd to loose this trans with only 300 miles Put on it. Bought it used from A friend it has a shift kit and valve bodies.
Any info would be awsome!
Thanks
Will

[jesilvas]

Well how much fluid is in it?
Any codes for the trans problem?

[350dieselsmk]

P1247 p1248 are pulled off my reader

[jesilvas]

I've got a list of codes bookmarked at home. I'll look later. Or you can google it.

[350dieselsmk]

Alright just had to pullover and let my trans cool down I opened the hood and reached down to feel the cooler ad lines and they were the sane temp as outside. Is there a valve or somthing that could be clogged not allowing fluid to reach the cooler?

[jesilvas]

The lines and cooler can be clogged. I'd start there. There is a pressure bypass on the side of the trans passenger side that can fail. Someone sells replacement ones but idr who.

Sorry I didn't get you codes sooner.
P1247 b MAP Turbo boost pressure low
MAP hose, sensor, EBP sys, intake leaks, turbo

P1248 b MAP Turbo boost pressure not detected
MAP hose, sensor, EBP sys, intake leaks, turbo

[350dieselsmk]

whats the best way to check if they are clogged?

[jesilvas]

Pull em off and blow air through them or pull the return line off the trans and start it up and see if it's flowing at all or barely any.