Why is temp gauge reading hot and the blower is blowing cold air and the rad is full?
Assuming RAD stands for radiator . . . Chances are your thermostat is stuck closed. Replace it.
How do you fix your heat in 1988 Cadillac brougham replaced blower motor with new one but still no heat what could be wrong?
You don't say the reason for the blower motor replacement. Did it not blow ? If that be the case, and you do have a new blower, check for 12 volts to blower. Could also Abe a malfunctioning blower module. Now if its blowing COLD air, well , replacing the blower moter wont make it blow warm. There could be numerous causes of that problem
Check blower motor fuse Blower motor resistor pack? Fan switch? Selector switch? ---- Is the Blower Motor Working? I'm not sure if the question is that the blower motor is working and "no air is blowing thru the vents'! If the blower is working and no air is blowing thru the vents then you could have a broken Recirculation Door. That is another common heating problem with the 99/04 Jeep GC. The recirc door brakes…
What is possible problem with AC not blowing at all Yesterday it was blowing cold and working on high only which you knew the blower motor and resistor were needing replaced Today nothing at all?
If the AC was working well yesterday and blowing cold, however, today their is no air being released, the AC could have been too high for two long. The AC tends to freeze up and has to be turned off for a while until thawed. If the blower motor and resistor needed replacement they may have officially blown and need replacement in order to work at all.
You will need to remove your oil pressure sending unit and install a mechanical gauge to get a true reading. You need to start out cold and write down the pressure reading and also once it warms up to operating temperature. If the pressure gauge is not the same as the mechanical one you have a bad pressure switch.