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If the coolant isn't circulating through the heater causing for little heat temperature what is the problem?
There is no relay. There is an electrically controlled temp door motor that runs the door directing the air flow, either across the heater core, or across the evaporator core, or any degree in between. That motor sometmes fails, and that blend dorr likes to break. I have a feeling you will need a heater case, because the door is part of the assembly.
What else can I help you with?
The heat stopped working on your 1993 Toyota Camry The radiator is not leaking the thermostat is good what else could cause this and how do I diagnose problem?
Cooling system airbound? Temperature control not working? Low coolant? Water pump not circulating coolant?
89 Cadillac Seville seems to get really hot towhere the coolant bubbles in the reservoir what could be the problem?
Head gasket? Low coolant level? Water pump not circulating coolant? Thermostat not opening? Radiator plugged or restricted?
Why is check coolant message coming up when coolant levels are good on 2003 Cadillac deville?
It could be symptomatic of a larger problem. The coolant may not be circulating properly, or the indicator panel or car's computer could be developing trouble.
Your 1996 Nissan maxima is overheating occasionally what should you do?
Overheating is due to, well, the coolant in the cooling system getting too hot. In a normally operating engine, this should never be a problem. First, check that the coolant level is correct. If it is correct, I would suspect a problem with the thermostat. When the engine is cold, the thermostat closes off coolant flow through the engine until the coolant reaches a pre-determined temperature. When that temperature is reached, the thermostat opens to allow the coolant to circulate at that exact temperature. Thermostats are known for failing and either not opening or not opening enough at that pre-determined temperature. This causes coolant to get trapped too long in the engine coolant chambers, heating it beyond limits, causing the engine temperature to increase and possibly overheat. If my Maxima was overheating, I would check the coolant levels and then possibly replace the thermostat. It usually is no more complicated than that.
Engine hot cooling not hot?
Engine is Hot, Coolant is not HOThere engine is hot means above the engine operating temperature, Coolant is not hot means coolant in the radiator is not hot and the coolant is below or withing the operating temperature.i think there is no water blow out from the radiator cap if you have this problem then the following will not apply to your case.* water is not circulating through the radiator, either half of the pumped water is circulating through the radiator or another half circulates through the engine block because of thermostat. so please check the engine thermostat for proper function.
Your 1997 Honda passport is overheating How do you diagnose what the problem is to make the proper repairs?
Low coolant? Radiator plugged or restricted? Cooling fan not working? Water pump not circulating coolant? Thermostat not opening? Cooling system airbound?
If you change your water pump and car still overheats?
The thermostat might be stuck, therefore not opening at the proper temperature to allow coolant flow through the engine block. This is a very common problem. Also there might be a coolant leak due to faulty hoses, heater core, or blown head gasket, causing the coolant level to be low.
You have changed the thermostat but your 1997 ford contour is still overheating What could the problem be?
Radiator plugged or restricted? Cooling system airbound? Water pump not circulating coolant? Radiator cap defective? Radiator hoses collapsing under pressure? Defective gauge/cooling temperature sensor?
Why your defroster suddenly stopped?
The water is not circulating through the heater core or you have a control problem. If the heater is putting out heat then it is probably a control problem. If no heat then - water pump out, low on coolant, or maybe the therostat is stuck open.
Your 2004 Malibu temperature is cold all the time What could be the problem?
coolant tempure sensor,thermastat
What is the problem when a conversion van has front heat and no rear heat.?
Check the valve that lets the heated coolant circulate to the rear heater core. You will not have any rear heat without the fluid circulating.
Why does your oldsmoble silhouette heater go hot then cold?
My Silhouette had that same problem. I found that the coolant level was too low and not circulating through the interior heating system. Once I topped off the coolant it worked properly. I just completed repair of the original problem that caused the coolant level to go down in the first place which was a bad lower intake manifold gasket. It now works great and doesn't consume any more coolant. -Tim
