Hi Justin, I'm taking a wild guess and asking are we talking abut an overheating engine? Well we need to know what type of engine, petrol or diesel? The specific make and type would be of great help and knowing exactly what problem is being experianced? Regards John
SOURCE: overheats
It may sound odd but removing the thermostate all together may be your issue. The thermostate regulates by controlling the coolant flow. If the coolant moves too quickly thru a radiator it can actually pass thru with little heat loss to the air. (kind of like moving you finger thru the flame of a candle, quickly you never feel the heat) if the fluid travels too quickly thru the radiator it may pass thru before the heat escapes in to the air.
I'd replace the thermosate with a new (properly working) one and proceed from there.
I hope this may have helped,
Tom
If it where your water pump isthe vehicle would overheat.
After you replaced the thermostat do you run the engine at idle with the radiator cap removed until the radiator fan came one?
This will help push the air out of the system.
There are two other possibilities.
1. The heater core is plugged. Back flushing the heater core may help remove the built up debris and get you heat again.
2. The blend door may not be fully transitioning from cold to hot. You should be ale to hear a district change in how the air sounds when switching from full hot to full cold.
Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!
I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa
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