Coolant is back flushing out of the radiator cap

2003 FORD MUSTANG
160,000 MILES • 4.6L • V8 • RWD • AUTOMATIC
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SJACKSONRWALLY
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Water pushing back out of radiator cap its new temp sensor is new water pump is 4 months old, fan housing replace with relay, ccr brain box replaced Temp on car rises up to half way fast and when I shut car off water pushes back out of radiator cap. I've put blue devil head sealer in as direction stated. Water still wants to push back out cap
Jun 6, 2015 at 9:37 AM
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HMAC300
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have coolant system pressure checked for a bad head gasket
Jun 6, 2015 at 11:15 AM