Question about 2006 Nissan Maxima
My sons Maxima runs hot at higher speeds (above 50 MPH) I changed the thermostat and it has a new radiator. After changing the thermostat he drove it home and it ran hot on the way. I went to his house and filled the radiator with fluid and started the car and let it idle for about twenty min. and the car did not leak and did not run hot. Could the water pump impellers be worn and not providing enough flow at higher RPMs.
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: 2000 maxima overheating
You have a new radiator and thermostat, so your coolant was flushed. Was the radiator "burped" afterward to get rid of air bubbles? If not, that needs to be done first - it would explain virtually every symptom you're seeing.
Jack up the car so that the radiator cap is elevated. With the coolant topped off, start the car and let it run until it's about 3/4 of the way to overheating. Then shut it down and go have a beer. When it cools off enough to safely open the radiator cap, do so, and any air trapped in the system will bleed out.
What you're doing is circulating the coolant and the air bubbles inside. The bubbles get lodged behind the thermostat and stay there, keeping it from opening (this causes the car to heat up). When you later pop the cap off the radiator, the pressure is vented from the system, the thermostat opens, and the bubbles pass through. They'll work their way to the radiator (since you've got it elevated) and pop out the open cap opening.
Your coolant level will likely drop somewhat after doing this, as the air bubbles will be gone and the space they took up in the system is now available. You may need to add a little more coolant, so top if off (with the car back on the ground) and recap the radiator, fill the overflow to the marked point on the tank, and you're good to go.
Try this if you haven't already, and post back up with your results. If it doesn't solve the problems, we'll take it further.
Posted on Aug 11, 2008
SOURCE: 2000 Maxima Running Hot
Try replaceing the engine fan controller, make sure there are no bugs in the radiator, there is another coolant sensor cost about $22.00 for it the fan control costs $40.00 bucks since you say it's ok when you have AC on my guess is the fan comes on for the ac and keeps it cool. You also may need a new fan motor, non AC side. sometimes the shats slip and the fan slips on the shaft of the motor an causes it not to turn fast enought.
Posted on Jul 04, 2009
SOURCE: 2004 nissaan xterra v6 3.3L
Well , I know $800 is a big bill , but think of it this way , you got a bunch of new stuff on the car. The timing belt replacement alone would cost someone almost $800 to have done by a mechanic , and if it broke and destroyed your engine how much would that have cost. It's always nice to solve the problem on the first try , but at least it is fixed now , and you won't have to worry about any of that other stuff for a long time.
Posted on Dec 15, 2010
SOURCE: car ran fine drove it
This sounds more like a crankshaft position sensor. When they start going bad they will work when vehicle relatively cold but fail when hot.
Hope this helps, it it does please leave feedback and vote Thank You and Good Luck
Posted on Jan 02, 2011
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