Question about 2003 Nissan Maxima

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Nissan Maxima has a new radiator, and new thermostat and is still overheating bad. It will go all the way up the H within 10 minutes of driving it.

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One of the issues with changing radiators and/or thermostats id that you get air into the coolant system. Question: Has this just started after those parts were changed, or did you have the problem before. Some cars like BMW's are notorious for this issue. If air gets into the system then it certainly can cause this. On my work van was pulling my hair out and it was a very small leak at the radiator allowing air to enter. Have 35 years experience with cars and never thought that would happen.

Posted on Oct 15, 2013

Testimonial: "It started about a week ago, one day on the way home it started overheating. We got it looked at and they thought it was the radiator, so we had that replaced. It drove great for a week. No problems what so ever. Yesterday, it started overheating again and we took it back and they thought it was the thermostat so we got that fixed. Still overheating..."

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Posted on Jan 02, 2017

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  • 255 Answers

SOURCE: overheating 1989 nissan maxima also radator fan won't come on

Hi,must of the time when fans stop working is because a fuse or a fan relay is burned ,it is also posible that the fan motor also burn out,there is a temperature switch at the cilinder head that can go bad and the fan will not go on. this should do it .....

Posted on Sep 01, 2008

  • 149 Answers

SOURCE: 1995 nissan maxima overheating

you possibly need a thermostat or even a water pump you can fill up the coolant at the radiator cap..its a silver cap near the front ov the car you need to push down on it and turn counter clockwise

Posted on Oct 28, 2008

  • 1201 Answers

SOURCE: 96 nissan maxima overheating

Check or have the electric cooling fan or fans checked, to see if they are coming on, and the radiator cap checked. You've done everything else.

Posted on Jan 30, 2009

polarcycle
  • 1392 Answers

SOURCE: Nissan 1999 Maxima is over heating

Most likely not. Pulling the thermostat will get you home, but not a great fix. Is it overheating driving down the road or sitting still? If it is overheating driving down the road, look for a clogged radiator or stuck thermostat. If it overheats sitting still, look for your cooling fans not coming on.

Posted on Mar 06, 2009

glamarre82
  • 140 Answers

SOURCE: 2006 nissan maxima radiator fans not kicking on/overheating

CHECK THE FUSE BOX ON THE DRIVER SIDE UNDER THE HOOD. CAN BE EITHER YOUR COOLANT TEMPERATURE SENSOR NOT WORKING TO LET THE FANS KNOW TO TURN ON OR YOUR THERMOSTAT IS STUCK CLOSE OR THE FUSE FOR THE FAN MAY NEED TO BE REPLACED.

Posted on Jun 19, 2009

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1 Answer

My 2001 Nissan Maxima is overheating and I am also getting bad gas mileage. I have replaced the radiator cap, the engine coolant and thermostat. It is still overheating.


One possible cause of this is your radiator might be clogged with corrosion, in order to verify this is withe the engice cold, open the radiator cap and then, fill it up to full but not to the point that it will spill, start the engine and step on the accelerator pedal and observe the water from the radiator if the water will squirt upward. If the radiator is clogged, you need to have it overhauled to declog corrosion that is on the fins of your radiator.

You may also check the fans if they are spinning.

Hope this helps, it happened to me before and I'm just sharing it to you.

Jul 05, 2011 | 2001 Nissan Maxima

1 Answer

No heat also overheats within 5 minwhen i drive it. new radiator new radiator cap new themistat.


seems like you might have a bad head gasket remove radiator cap and let it run. make sure the antifreeze is flowing if not it could be the water pump prop many car makers are using plastic props and they fail with time.also very possible that thermostat is bad was it overheating before it received a radiator ,cap and thermostat if so it is between head gasket.,and water pump but if you have no flow it is possible that the water pump prop is broken .there is head gasket test that can be done most shops have them and cost a little to do.to be sure.

Nov 14, 2010 | 2002 Nissan Sentra

1 Answer

I have a 1989 v6 nissan maxima ive replaced the thermostat it has a new oil and feul filter and 6 new spark plug leads but the heater doesnt work and it keeps overheating


i had that same problem with mine. i replaced my thermostat and that still didn't help. but then i replaced my radiator cap and after that it stopped overheating. im pretty sure thats what did it for me. i hope that helps.

Dec 28, 2009 | Nissan Maxima Cars & Trucks

1 Answer

91 nissan maxima


See if you have a leak in any of your coolant tubes. If no leaks, you may have a bad thermostat that is stuck closed and needs to be replaced asap.

Jun 20, 2009 | 1991 Nissan Maxima

2 Answers

1994 nissan maxima overheating


All the time, Idling or driving? Radiator fans working? Thermostat changed lately? Rad flushed lately? Coolant level up in rad & return bottle?

Jun 04, 2009 | 1994 Nissan Maxima

1 Answer

Engine Temperature rises, all fluids are full, w/no leakes.


replace thermostat.feel top radiator hose and bottom radiator hose if they both should be hot 10-15 minutes.if not replace thermostat.

May 11, 2009 | 1996 Nissan Maxima

1 Answer

Hello, I own a 2000 Nissan Maxima that has been overheating for some time, the car has been off the road until I had time to work on it. Before changing the thermostat, the car would overheat at idle w/o...


Sounds like a blown head gasket from multiple overheatings. Parts retailers have a chemical that can determine this. To use it the coolant level in the radiator needs to be a little low so no coolant will be pulled into chemical container. Engine needs to be at operating temperature. The containter is pushed onto radiator cap opening and bulb squeezed numerours times for about 2 minutes. If the chemical changes from blue to yellow (or green depending on manufacturer) then the head gasket is blown or head has warped (or both).

May 03, 2009 | Nissan Maxima Cars & Trucks

2 Answers

2001 nissan maxima overheating problem persists


It sounds like the the thermostat that was replaced is probably faulty. This being the cheapest and easiest to do I would start there. I can't reply about the air pockets. I have never heard of that before.

Apr 15, 2009 | 2001 Nissan Maxima

1 Answer

Nissan 1999 Maxima is over heating


Most likely not. Pulling the thermostat will get you home, but not a great fix. Is it overheating driving down the road or sitting still? If it is overheating driving down the road, look for a clogged radiator or stuck thermostat. If it overheats sitting still, look for your cooling fans not coming on.

Mar 05, 2009 | 1999 Nissan Maxima

1 Answer

1995 nissan maxima overheating


you possibly need a thermostat or even a water pump you can fill up the coolant at the radiator cap..its a silver cap near the front ov the car you need to push down on it and turn counter clockwise

Oct 28, 2008 | 2000 Nissan Maxima

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