SOURCE: no heat in vehicle . both heater hoses are hot
the temp blend door is broken, they break all the time.
SOURCE: bmw 320i touring 1995 n reg
check and see if you get water/coolant circulates when you have the cap off (only check from cold start) the original water pump came with a plastic impeller and tends to strip on the shaft also check your thermostat before replacing water pump.
SOURCE: 2002 dodge 1500 Changed radiator, thermostat, and hoses. No heat
Why was radiator replaced?Did it have heat before ? If it was plugged, the heater core may also be plugged. Try flushing it with a water hose in both directions. I dont know why the botton radiator hose would be cold, the radiator should be a uniform temp and the air coming through the radiator should be HOT, when the engine is at operating temp. What condition was the old coolant? if it was rusty, the water pump may have lower flow than normal.
SOURCE: heater not heating hot enough. heater core not
Good place to start is a cooling system flush and thermostat replaced.
SOURCE: No heat. Both thermostats replaced.
Pressure test the cooling system. Remove the spark plugs and inspect the top of the piston. Look for coolant. If you can see your own eye you found coolant. If the cooling system was properly bled and still no heat at idle you may find coolant in the cylinder. The head gasket would need to be replaced and the surfaces prepped. Machining the head is not recommended.
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