This question is not complete. . Need to know if you've replaced radiator, thermostat, hoses etc. Are you asking this question *after* yo checked the thermostat, changed, added or drained the system?
The radiator may be plugged. Take it to a radiator shop.
Bad thermostat maybe?
If you have an old ISUZU Trooper, the radiator thermostat may be not working. Therefore, it will not let cool water from the radiator into the hot engine, even if the radiator is full. Have the thermostat checked and replaced, if necessary. Good Luck
im having the same problem with my 1994 I've replaced the heater core,thermostat,radiator,i checked the coolant, and it's not over heating or nothing and still no heat lol
You might have bad actuator that opens and closes airways.
Have you checked your thermostat?
Hi have you checked the radiator for blockage if it is blowing water back out the radiator this could be the problem.
Replace the coolant, thermostat, turn off the A/c, in emergencies drive with the heater on, increase the air flow through the radiator, have your radiator checked for blockage.
Intake manifold gasket leak? (Never heard of a heat sensor). Many possibilities.
Have you gone through an checked your waterpump / waterpump hose to make sure they're ok?
first of all, do you have the right thermostat? ie: winter, summer. if so i would get the radiator checked, it may be getting pluged.
If it is clean, undamaged, and in good working condition.....NO. Since the radiator needs to be removed, to remove the engine, now is a good time to have it cleaned and checked.
If you replaced some of theses already ignore and go down the line # Not enough coolant # Water pump drivebelt defective or out of adjustment # Radiator core blocked or grille restricted # Thermostat faulty # Electric cooling fans blades broken or cracked # Radiator cap not maintaining proper pressure # Ignition timing incorrect
Have you checked the thermostat... Sound like a blocked radiator .................PS
I would suggest you replace the thermostat, and flush the cooling system. Also check the radiator fins and see if they are clean and free of debris.
Have you checked for Carbon Monoxide in the radiator coolant? If it's there, you have a leaking headgasket. The problem is, if your Nissan overheated for any reason, the head can warp and result in a leaky headgasket. Once that happens you'll never be able to keep it from overheating.
sounds like your temperature sensor unit if you have already checked the thermostat and the radiator and fans are ok
you need to remove the fan the thermostat and the thermostat housing, and the water pump pully and belt. Also you will need to remove the radiator hoses, these should be checked for any holes and replaced if needed.
It could be any number of things, but I'd check for bad fan relay or fuse, sticking thermostat, blocked radiator or blown head gasket.
have you checked ur thermoswitch or the relay Simply check if the fan units are running when the engine is hot. Easiest to do when the hood is up. Are you losing coolant from the expansion tank, this could be a sign of failed Head Gasket.
The IMPELLER on the water pump.The MIXTURE of Anti-Freeze to Water mixture.Blown head gasket.Correct TIMING.the FLOW on the Radiator that U already checked...
I'd start with the thermostat. Make certain that you have plenty of coolant and that the radiator isn't blocked. After you've checked all that... we'll talk.
We don't know what relay you are referring to. Check your thermostat and radiator fan. Fluch out your cooling system.
Not sure if these have one but it could be a bad thermostat.