The coolant [https://www.youtube.com/watch?v=BAbWj3rlHY0|thermostat] may not be opening and preventing the flow of “cooler” coolant through the engine block to cool the engine (and also through the heater radiator in the passenger compartment).
+
The coolant [https://www.youtube.com/watch?v=BAbWj3rlHY0|thermostat] may not be opening which prevents the flow of coolant through the engine block to cool the engine (and also to flow through the heater radiator in the passenger compartment if the heater is turned on).
This causes the engine to overheat, especially when the vehicle is stopped in traffic with the engine idling, and it also means there is no hot air when you turn on the heater.
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The way to check this:
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The way to check if it is opening:
When the '''engine is cold''', remove the radiator cap and start the engine.
'''Be safety aware as the engine is running:''' vehicle in park or neutral, handbrake on
As the engine warms, after a while (check the engine temp gauge) you should notice the coolant in the neck of the radiator start to “flow” or “swirl” indicating that the thermostat has opened and that the coolant is being pumped through the engine.
'''Be careful''' as the coolant temperature increases the liquid expands and it might overflow from the neck of the radiator''
Hopefully you’ll notice whether or not the thermostat has opened ''before'' this occurs
The coolant [https://www.youtube.com/watch?v=BAbWj3rlHY0|thermostat] may not be opening and preventing the flow of “cooler” coolant through the engine block to cool the engine (and also through the heater radiator in the passenger compartment) .
-
This causes the engine to overheat and also means there is no hot air when you turn on the heater.
+
This causes the engine to overheat, especially when the vehicle is stopped in traffic with the engine idling, and it also means there is no hot air when you turn on the heater.
The way to check this:
When the '''engine is cold''', remove the radiator cap and start the engine.
'''Be safety aware as the engine is running:''' vehicle in park or neutral, handbrake on
As the engine warms, after a while (check the engine temp gauge) you should notice the coolant in the neck of the radiator start to “flow” or “swirl” indicating that the thermostat has opened and that the coolant is being pumped through the engine.
'''Be careful''' as the coolant temperature increases the liquid expands and it might overflow from the neck of the radiator''
Hopefully you’ll notice whether or not the thermostat has opened ''before'' this occurs
The coolant [https://www.youtube.com/watch?v=BAbWj3rlHY0|thermostat] may not be opening and preventing the flow of “cooler” coolant through the engine block to cool the engine (and also through the heater radiator in the passenger compartment) .
This causes the engine to overheat and also means there is no hot air when you turn on the heater.
The way to check this:
-
When the engine is cold, remove the radiator cap and start the engine.
+
When the '''engine is cold''', remove the radiator cap and start the engine.
'''Be safety aware as the engine is running:''' vehicle in park or neutral, handbrake on
As the engine warms, after a while (check the engine temp gauge) you should notice the coolant in the neck of the radiator start to “flow” or “swirl” indicating that the thermostat has opened and that the coolant is being pumped through the engine.
'''Be careful''' as the coolant temperature increases the liquid expands and it might overflow from the neck of the radiator''
Hopefully you’ll notice whether or not the thermostat has opened ''before'' this occurs
The coolant [https://www.youtube.com/watch?v=BAbWj3rlHY0|thermostat] may not be opening and preventing the flow of “cooler” coolant through the engine block to cool the engine (and also through the heater radiator in the passenger compartment) .
This causes the engine to overheat and also means there is no hot air when you turn on the heater.
The way to check this:
When the engine is cold, remove the radiator cap and start the engine.
'''Be safety aware as the engine is running:''' vehicle in park or neutral, handbrake on
-
As the engine warms, at a certain point you should notice the coolant in the neck of the radiator start to “flow” or “swirl” indicating that the thermostat has opened.
+
As the engine warms, after a while (check the engine temp gauge) you should notice the coolant in the neck of the radiator start to “flow” or “swirl” indicating that the thermostat has opened and that the coolant is being pumped through the engine.
-
'''''Be careful''' because as the coolant temperature increases the liquid expands and it might overflow from the neck of the radiator''
+
'''Be careful''' as the coolant temperature increases the liquid expands and it might overflow from the neck of the radiator''
Hopefully you’ll notice whether or not the thermostat has opened ''before'' this occurs
The coolant [https://www.youtube.com/watch?v=BAbWj3rlHY0|thermostat] may not be opening and preventing the flow of “cooler” coolant through the engine block to cool the engine (and also through the heater radiator in the passenger compartment) .
This causes the engine to overheat and also means there is no hot air when you turn on the heater.
The way to check this:
When the engine is cold, remove the radiator cap and start the engine.
'''Be safety aware as the engine is running:''' vehicle in park or neutral, handbrake on
-
As the engine warms, at a certain point you should notice the coolant in the neck of the radiator starts to “flow” or “swirl” indicating that the thermostat has opened.
+
As the engine warms, at a certain point you should notice the coolant in the neck of the radiator start to “flow” or “swirl” indicating that the thermostat has opened.
'''''Be careful''' because as the coolant temperature increases the liquid expands and it might overflow from the neck of the radiator''
Hopefully you’ll notice whether or not the thermostat has opened ''before'' this occurs
The coolant [https://www.youtube.com/watch?v=BAbWj3rlHY0|thermostat] may not be opening and preventing the flow of water through the engine to cool the engine (and also through the heater radiator in the passenger compartment) .
+
The coolant [https://www.youtube.com/watch?v=BAbWj3rlHY0|thermostat] may not be opening and preventing the flow of “cooler” coolant through the engine block to cool the engine (and also through the heater radiator in the passenger compartment) .
This causes the engine to overheat and also means there is no hot air when you turn on the heater.
-
The way to check this is when the engine is cold, remove the radiator cap and start the engine.
+
The way to check this:
+
+
When the engine is cold, remove the radiator cap and start the engine.
+
+
'''Be safety aware as the engine is running:''' vehicle in park or neutral, handbrake on
As the engine warms, at a certain point you should notice the coolant in the neck of the radiator starts to “flow” or “swirl” indicating that the thermostat has opened.
'''''Be careful''' because as the coolant temperature increases the liquid expands and it might overflow from the neck of the radiator''
Hopefully you’ll notice whether or not the thermostat has opened ''before'' this occurs
The coolant [https://www.youtube.com/watch?v=BAbWj3rlHY0|thermostat] may not be opening and preventing the flow of water through the engine to cool the engine (and also through the heater radiator in the passenger compartment) .
This causes the engine to overheat and also means there is no hot air when you turn on the heater.
+
+
The way to check this is when the engine is cold, remove the radiator cap and start the engine.
+
+
As the engine warms, at a certain point you should notice the coolant in the neck of the radiator starts to “flow” or “swirl” indicating that the thermostat has opened.
+
+
'''''Be careful''' because as the coolant temperature increases the liquid expands and it might overflow from the neck of the radiator''
+
+
Hopefully you’ll notice whether or not the thermostat has opened ''before'' this occurs
If there is no hot air when you turn on the heater then the coolant [https://www.youtube.com/watch?v=BAbWj3rlHY0|thermostat] may not be opening and preventing the flow of water through the engine (and also through the heater radiator in the passenger compartment)
+
The coolant [https://www.youtube.com/watch?v=BAbWj3rlHY0|thermostat] may not be opening and preventing the flow of water through the engine to cool the engine (and also through the heater radiator in the passenger compartment) .
+
+
This causes the engine to overheat and also means there is no hot air when you turn on the heater.
Hi,
If there is no hot air when you turn on the heater then the coolant [https://www.youtube.com/watch?v=BAbWj3rlHY0|thermostat] may not be opening and preventing the flow of water through the engine (and also through the heater radiator in the passenger compartment)