Coolant overflow reservoir

GMC
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JUAN F. MARTINEZ
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What's it that since I change the cap on this coolant container overflow reservior? it doesn't tight good enough. Do you think that through this cap is evaporating or something? and now I have to fill twice a week with antifreezer. I checked if any leak and everything is like normal. : :o :o
Mar 18, 2006 at 8:54 PM
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CHEVYMAN27
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The resevior is for when the antifreeze over flows from being to hot. Needs somewhere to go. You won't loose pressure with or without a cap. Check the radiator for problems such as a leaky hose or rusted bottom of radiator.
Mar 18, 2006 at 9:01 PM