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Old 01-02-2013, 06:48 AM
DCARLTON DCARLTON is offline
Tech Enthusiast
1995 Maxima
2002 Altima
1997 Maxima GLE
 
Join Date: May 2008
Posts: 268
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the higher the rpm, the more pressure and flow through the cooling system. The less the rpm, the less flow. Air gets caught in the heater core as opposed to fluid and air does not transfer the heat as well as the coolant does.

Follow the steps I outlined above, get all of the air out and your problem should go away.

I just replaced a small bypass hose on my Maxima and was able to burp the air out of the system by squeezing the upper radiator hose to get the air out and never had to go through a purge process similar to the Altima one.

I do know that if you follow that Altima purge process, YOU WILL get all the air out and your heat will be so hot you will have to turn the temperature down.
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1995 Maxima SE (313,000+ miles 10/2012)
1997 Maxima (193,000 miles - bought from daughter when she traded for a Hyundai Elantra Coupe)
2002 Altima (daughter - totaled 12/2011 with 210,000 miles)
2012 Altima (daughter - replaced 2002 with 8 miles, now with almost 30,000 miles)
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