Question about 2003 Nissan Sentra

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Nissan sentra 2003 : No heat at idle... Overflow is fillling up on the highway. i have heat on the highway, once we took it for a road test : the gauge said it was overheating but when i waited 5minutes with the heat on it whent down to normal heat... i retook the highway and it did it again and then the gauge was now fluctuating up and down im suspecting air in the system going on the coolant temp sensor ? i need help!!!!! im about to do a compression test to see if its a head gasket anyone ?

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Looks like you have air in your coolant.

Posted on Dec 30, 2010

  • ninja_tur67 Dec 30, 2010

    why would i have hot air at only on the high way then that is the questioN!

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