2003 Nissan Sentra Logo
Posted on Sep 30, 2008
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2003 Nissan Sentra Problem overheating and heater doesn't work.

I have a 2003 nissan sentra gxe 1.8L motor. The car is over heating and the heat doesn't work. I have had the flow rate check in the radiator the therostat check the water pump checked. the fans work. I am not sure what to do next. help please. We have tried everything.

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  • Anonymous Nov 17, 2008

    same car same problem, hmm

  • luigi2388 Dec 08, 2008

    I'm basically experiencing the same exact problem. I have a 2003 Sentra 1.8 GXE and it has been overheating on me as of late and the heater works sometimes only. I did a pressure check and it came out good and there are no leaks of antifreeze and my i have plenty of anti-freeze within the tank and radiator itself. I changed the thermostat but my car overheats more now! Please help, anyone???

  • Anonymous Apr 23, 2009

    I have the same symptoms in my 2003 Sentra GXE, 1.8 L manual, 120'000 miles. This morning, the heater did not work, and the temperature gauge fluctuated up and down wildly, almost hitting top temperature. The temperature indicator seems to tend to go up when the car is standing mostly.

  • Anonymous Apr 24, 2009

    OK, same guest as yesterday. My garage told me it was due to a broken thermostat, which I had replaced. Apparently, the head gasket in the Sentra really does not like overheating, so when it malfunctions, this is usually because of some underlying problem with the temperature regulation mechanism. I suggest to everyone experiencing this problem to BRING YOUR CAR IN FOR REPAIR IMMEDIATELY. A new thermostat runs around $ 200; replacing a head gasket easily comes to $1000 to $1500. Definitely not worth the risk.

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  • Posted on Mar 23, 2009
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I had this exact problem a few weeks ago. The repair shop first changed the thermostat. Didn't fix the problem. Next step, they found the radiator was clogged. They replaced the radiator and now everything works fine.

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  • Posted on Oct 24, 2008
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Does the car overheat at idle or travelling down the road? if the thermostat was not changed, thats first step. checking it is replacing it. possibly air-bound. then i would suspect a headgasket problem.

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  • Posted on Sep 15, 2015
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ECT sensor needs replaced and rpm on warm engine needs to be set to 1200

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  • Posted on Mar 17, 2013
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If you start the car, how soon it over heats,what clour smoke it have,can you chk oil dipstick, how the oil look like, let me know further.

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