700r4 pressure go low when warm

[Warrant]

I just rebuilt my 700r4 and the pressures go low when its warmed up at idle (been driving it for a little bit) Ill stop at a light and put it in low and pressure reads 75-90. If I hold brake and slowly bring rpm up the pressure instantly comes up to 170ish but its takes about 1300rpm to get it back to 200. Driving pressures still look good.

When it warms up just idleing in the driveway the pressures read 200. so it seems to only do it while driving.

I think its because its warm and the engine is idleing at about 600rpm? Is that just to low to get the pressure.

normal or do I gotta problem?

 

[jakeshoe]

75-90 psi in Drive idling is normal pressure.

If you have 200 psi idling you have a stuck TV valve or boost valve/pressure regulator.

 

[Warrant]

No I mean when I first start it and let it warm up until it will idle at 600rpm I get 200 in manual low.

but I get 75-90 in manual low idling at 600 after driving it awhile.

 

[Warrant]

bump