Quote: So the bypass valve is meant to open, and the pressure is supposed to stay at that maximum, but it does happen sometimes where the pressure will drop some when the spring is HOT? Reason I ask, I took the car for a quick drive today, but the temps were somewhat colder...didn't get to the same rpms, but I hit it off the 5500 stall on the converter and my pressure was a little above 60psi and there was no drop...so is it normal for the spring to be hot and drop some?
Yes... on the newer pumps it seems like the spring isnt as good as they use to be.. its a lower pressure and do tend to drop a couple pounds... I think its more of the material the springs are made out of
