Echo5Bravo
NAXJA Forum User
- Location
- Missouri
1990 Limited - Operating temp 235 degrees... WTF?
It is the fully pressurized system... with no radiator cap... just the pressurized puke tank.
So far I have replaced the puke tank, the water pump, the thermostat (then reinstalled the old one), flushed the system (myself) and put in new coolant. My operating temp is still around 235 (as the gauge reads).
Despite having a 195 degree thermostat, I can see the temp gauge needle rise to about 215, then dip when the thermostat opens (this is the same with two separate thermostats, so I ruled out a bad thermostat).
Even with a 20 degree margin of error on the gauge, I'm still running hot.
The only strange thing I can find is that while running at 235 degrees I can squeeze the hose that connects the block (just off the thermostat) to the top (intake) of the radiator and it will not be full of fluid... it won't be tight with pressure... it feels mostly empty. Also, the same hose is hotter near the thermostat than near the radiator. Somehow, I am not getting proper flow through in the coolling sysytem.
I have tried disconnecting that hose at the block, filling it with fluid, then quickly re-attaching it... still running hot.
Please, for the love of Pete, help a brother out.
Thanks.
E5B
It is the fully pressurized system... with no radiator cap... just the pressurized puke tank.
So far I have replaced the puke tank, the water pump, the thermostat (then reinstalled the old one), flushed the system (myself) and put in new coolant. My operating temp is still around 235 (as the gauge reads).
Despite having a 195 degree thermostat, I can see the temp gauge needle rise to about 215, then dip when the thermostat opens (this is the same with two separate thermostats, so I ruled out a bad thermostat).
Even with a 20 degree margin of error on the gauge, I'm still running hot.
The only strange thing I can find is that while running at 235 degrees I can squeeze the hose that connects the block (just off the thermostat) to the top (intake) of the radiator and it will not be full of fluid... it won't be tight with pressure... it feels mostly empty. Also, the same hose is hotter near the thermostat than near the radiator. Somehow, I am not getting proper flow through in the coolling sysytem.
I have tried disconnecting that hose at the block, filling it with fluid, then quickly re-attaching it... still running hot.
Please, for the love of Pete, help a brother out.
Thanks.
E5B