1998 Nissan Altima Cooling system

255,000 MILES • 4 CYL • AUTOMATIC
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ANN_4018
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After replacing the radiator and thermostat the engine is still not cooling with in a mile it is running hot. Please help!!
Aug 21, 2014 at 4:55 AM
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HMAC300
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if thermostat was replaced was it put in upside down? if not the have the coolant system pressure checked it may be a head gasket or something cracked like a head.
Aug 21, 2014 at 4:57 AM
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ANN_4018
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Thank you for your prompt response, how would I know if the thermostat was replaced upside down? How would I know if there is a cracked head gasket?
Aug 21, 2014 at 5:06 AM
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HMAC300
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  • 48,601 POSTS
if the thermostat was done by a pro then I doubt it but you would have to take it out and look is the only way. a pressure test on system will tell if there is an internal leak like a head gasket maybe coolant in cylinder etc. Cracked head would be after you take the head off which I'm assuming it's not.
Aug 21, 2014 at 8:19 AM
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