2004 Nissan Sentra Temperature gauge spike and malfunctioni

2004 NISSAN SENTRA
151,000 MILES • 4 CYL • 2WD • MANUAL
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WDUNH69733
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In the past two weeks, my heater fails to heat unless I'm driving on the interstate at 75 mph. In addition, the cruise will work for a while, then cut off, the light will blink a couple of times and then I can resume the cruise speed.

Yesterday, coming home, the temperature gauge spiked to a very high reading at a stop sign. As I put it in gear to drive into a gas station to check the coolant, it came back down to normal.

I'm thinking it's either a thermostat problem for both or just for one. Any thoughts?
Dec 20, 2007 at 1:12 PM
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2CARPRO JACK
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Could be a sticky thermostat, I would have the cooling system serviced, winter is coming
Dec 20, 2007 at 4:04 PM