2005 CHEVROLET OPTRA
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ROCHJOHN19
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  • 14 POSTS
sir my coolant boiling, but my car is not overheating..

but sometimes overheat because my reservoir empty.. it leaks ang overflow the reservoir cap because of high pressure and boiling..
Oct 27, 2012 at 3:24 PM
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CARADIODOC
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  • 34,306 POSTS
If it's just bubbling, that's a sign of a leaking head gasket. The clue is the bubbling coolant in the reservoir is not hot or steaming.
Oct 27, 2012 at 7:22 PM
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SREEJITH SN
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Change Overflow reservoir cap will rectify your overheating problem.
Dec 23, 2019 at 6:07 AM
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