Temperature Problems

[wizdawg]

What is a list of all possible problems that will cause a vehicle's temp gauge to read normal (in the middle), but as soon as you come to a stop the needle starts climbing to the point where it is pegged. Then when you begin driving again, the temperate fall back down to normal range within 30 seconds.

Thanks

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[tinosc281]

temperature

air in the system would cause that.or a bad termostat

 

[BlaqSnake]

Low coolant level?

 

[wizdawg]

Do you think a thermostat that is opening, but not completely opening could cause this?

 

[tinosc281]

temperature

do you hear your radiator fan kick in.maybe it's not working right.

 

[wizdawg]

I had recently thought of that, but have not checked yet.

 

[VenomousDSG]

Burp the system

 

[99 Stangbanger]

When vehicles over heat while parked or standing still and then cools down while driving its usually a faulty fan 99.9% of the time.The cooling fan is only a factor when the car is sitting still, as normal
airflow through the radiator cools the engine when the car is moving.

The thermostat is always a suspect. I'd change it as a precautionary
measure:biggthump

Maybe a bad coolant temp sensor

FYI.. the fan has 2 speeds. You need to test and make sure both are working right!

 

[wizdawg]

FYI:
I was just asking this question/problem in general, but to be more specific, this is a bike.... if that makes any difference, which I dont see how it can.

 

[99 Stangbanger]

Start at the fan 1st though.

Turn the bike off, and check the blades of the fan spin
freely. Next run the bike until the fan comes on. If the fan does
not come on before the idiot light comes on, your fan is broken.

The cooling is performed through heat transfer
to both the coolant and heat transfer to the oil on most import bikes. Thus, if you are low on oil, the average temperature of the oil will be higher and will increse the temps of the coolant.

Also....if bleeding the air from the system did not work, you may have a
blockage somewhere. Check all hoses and you can also give them a sqweez to help burp the system of air.

NOTE.. Pin-hole leaks or damage to coolant tubes will either
leak coolant, or allow air into the cooling system.


Check the radiator Cap (s) and make sure that they are in good working condtion and dont have weak seals or bad springs.