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Discussion Starter #1
I am trying to troubleshoot some overheating problems I have been having. I was just wondering if the coolant should be filled up to the neck of the radiator cap or to the top of the fins of the radiator? Everytime I open the cap after the car has been driven the coolant is right at the level of the fins, even after I fill it to the neck before the drive. Any input would be appreciated, thanks.
 

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Discussion Starter #3
It only goes down after the first drive to the top of the fins. After that, i can drive it all day and it won't go any lower so I don't think it's leaking. Where is everyone elses normal level in the radiator? fins or filler neck?
 

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Is you overflow bottle filled to the appropriate level?

Mine is always at the filler neck, also you may want to try putting the car on an upward slant, put a funnel into the filler neck, fill with coolant, start the car, and keep full while the water bubbles/burps (car needs to be warmed up to fully circulate the coolant throughout the entire motor. Before this check, and I mean REALLY check each hose to make sure you arn't leaking somewhere.
 

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Discussion Starter #5
Is you overflow bottle filled to the appropriate level?

Mine is always at the filler neck, also you may want to try putting the car on an upward slant, put a funnel into the filler neck, fill with coolant, start the car, and keep full while the water bubbles/burps (car needs to be warmed up to fully circulate the coolant throughout the entire motor. Before this check, and I mean REALLY check each hose to make sure you arn't leaking somewhere.
The overflow bottle is filled right to the F line meaning that it is in the right spot. I don't believe the car gas any air bubbles in the cooling system because it is not overheating and I have burped it in the past. I have also pressure tested it and the cooling system is holding pressure. What could cause the level in the radiator to drop and stay there?
 
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