Radiator Flush now no heater is spotty

Jinxx · 03-05-2018, 01:50 PM

Quote:

Originally Posted by mults

To me, it sounds like air in the system. Even if the thermostat is stuck open, the coolant should still be warm-ish. If there is heat when driving and none when you stop, there is not enough coolant to reach the heater core.

My $.02...but either way, take it back and get them to fix it...Let us know what they find.

Most of the time air in the system will run hot ....

SouthArk370Z · 03-05-2018, 05:13 PM

Quote:

Originally Posted by mults

To me, it sounds like air in the system. ... If there is heat when driving and none when you stop, there is not enough coolant to reach the heater core.

Quote:

Originally Posted by Jinxx

Most of the time air in the system will run hot ....

The engine will usually run hot but flow to the heater core can be blocked by air pockets, especially when the water pump is at low speed. The coolant in the core cools off quickly when flow is lost.

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