QuestionI replaced the blend door actuator but still not getting warm to hot air, only luke warm, from the heater. The two hoses going into the heater core are warm, but with one slightly warmer than the other. The heater core was flushed good, the thermostat is new, and the coolant is new, and the blower works fine. Not sure what else to do, I need help please.
AnswerHello,
On the engine on the passenger side, there should be a heater control valve. We used to call it a (dole valve).
This valve controls the hot water from engine going to heater. If not functioning, engine side will be hot and heater outlet will not be hot.
What concerns me is that you describe the hoses as being warm and not hot. What is engine temperature warmed up? 195?
There are a whole host of issues that could cause this engine to be at normal operating temperature. It appears as though you went after some of them, but not all. This aluminum engine has very small cooling jackets and can be easily restricted. The radiators had issues.
Did you pressure test the radiator cap?
When the engine is warmed up, the radiator should be hot uniformly. If not, restricted and needs replacement.
If you are in a very cold place like where I am from (Wisconsin) you may want to place card board in front of the radiator in lieu of replacing it, to get the engine up to 195. 195 is not warm. It is hot. You can run this engine up to 220 degrees but no higher.
Get back to me on what you have found.
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