will a faulty radiator cap cause overheating in this car?
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1995 Lexus ES300
Question: radiator cap
Answer #1hemicuda April 05, 2010, 13:41Master
Yes, Each vehicle has a certain PSI radiator cap and once it looses its pressure holding capability it could overheat as coolant and water has a higher boiling point when its under pressure. Have a shop pressure test your cooling system http://repairpal.com/directory?address=33025&car_bran...