What does increasing transmission line pressure do?
Line pressure is just one of the components that contribute to the torque capacity of the transmission. First, it’s not the speed of the application of a clutch but the holding strength once the clutch is applied that contributes to strength. In this respect higher line pressure will give higher torque capacity.
What can cause higher than normal line pressure in an automatic transmission?
Higher than normal pressures are usually caused by a faulty pressure regulator. A few different things can trigger the P0868 trouble code, including: Insufficient transmission fluid levels due to leaks in the system. Slipping or otherwise malfunctioning transmission. Malfunctioning transmission high pressure pump.
What is normal transmission pressure?
The pressure should read 40 to 70 psi.
How much pressure should be on a transmission cooler line?
its about 20 pounds at most , if you do use rubber line make sure its for powersteering/transmission as regular rubber hose will soften and fail from the fluid type not the pressure , but like you I found the hard way that if a little of the line develops pinholes the whole line is shot , I replaced mine with stainless …
Does a transmission build pressure?
Unless you plan on towing. there is at idle between 20-50 psi but during use pressures in transmission lines can reach 100 psi or more. Pressure that are lower than specifications are usually caused by leaking seals or a worn oil pump. Place the transmission in forward position and operate the transmission to 600 RPM.
How much pressure do transmission lines have?
there is at idle between 20-50 psi but during use pressures in transmission lines can reach 100 psi or more. if you are going to use rubber lines be sure to use barbed fittings so the hose does not blow off. Cooler and lube pressure are about the same at 5-30 psi.