when the car is first turned on
in the morning,the pump runs for about 6-9 seconds ,and switches off about 20 to 30 seconds later the pressure switch closes again running the pump for maybe 1 second till the switch opens again ,4wd light comes on the dash and disables the 4wd system,
i have used the gtr workshop manual 4 the error code that flashes on the ets 18 flashes,
computer and it says pressure switch problem, the switch that is closed when
the pressure for the 4wd system is low, runs the pressure motor till the
pressure opens the switch saying there is enough pressure in the system, now
the problem is after the switch is opened initally it has to remain open for
a certain amount of time to not cause and error if it closes which it does
early on startup it causes this error,so either the switch is faulty closing
too soon,or the system is loosing pressure too early causing the switch to
close again,does anyone there know if the pressure switch is soley
deactivated on pressure alone ,or if it has a sensor of some sort that tells
it to open and close
have rebleed system incase air in fluid was causing pressure drop making switch close again ,if i manually run the pump for a sec longer after the switch has opened, i dont get the error ,hence why i thing its a pressure problem ,maybe even the pump is loosing oomph and bareely opening the switch, have searched every skyline club thread,but noone seems to have had these symptoms,or any idea of cure,if someone has and fixed it please let me know ,cheers!