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capnflapper
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| Posted: Dec 24 2009 at 1:13pm | IP Logged
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Have a 07 Frontier, 46,000 miles. I am not getting very much heat from my heater. No antifreeze leaks, temp does not seem to be up to par. Can only get about 160 degrees from radiator. Also appears to be now flow from the thermostat hose to the lower radiator. If the thermostat would not open, I believe I would have an overheat problem. Vehicle does not overheat. Runs great full power. But no heat!! Any advice? Ran vehicle w/o rad. cap to vent air, still no good.
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lakota
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| Posted: Dec 24 2009 at 3:50pm | IP Logged
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capnflapper
Welcome to the group!
Try this... Drain the cooling system. Pull off the heater hoses and reverse flush the heater core with a garden hose and re install. Remember the garden hose will have more pressure than the heater core can stand! Be careful…
Have a good one while you can still laugh about it.. Don S..
Happy Holidays…
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PLEASE >>> A SIG similar to mine can be VERY HELPFUL to all the members!
'99 4x4 3.3 Frontier Se KC Auto, 48,000 miles
'76 4x4 401 Wagoneer QT
'04 FWD 1.8 Sentra '08 FWD 2.4 Camry LE
Fort Worth
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oldson20s
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| Posted: Dec 28 2009 at 12:40am | IP Logged
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i was just reading it in the other forum, because im having the same issue. they said to keep filling up your radiator over fill tank. there might be air stuck in the heater core. i put some water/antifreeze in earlier tonight before i left. my heater got a little warmer while i was driving that it did before. ill put more in tomorrow and see what happens.im driving a 2001 frontier 2.4l extended cab with 204500miles on it. damn its bout time to change the oil again
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frontierguy
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| Posted: Dec 29 2009 at 7:22pm | IP Logged
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capnflapper wrote:
| Have a 07 Frontier, 46,000 miles. I am not getting very much heat from my heater. No antifreeze leaks, temp does not seem to be up to par. Can only get about 160 degrees from radiator. Also appears to be now flow from the thermostat hose to the lower radiator. If the thermostat would not open, I believe I would have an overheat problem. Vehicle does not overheat. Runs great full power. But no heat!! Any advice? Ran vehicle w/o rad. cap to vent air, still no good.
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Thermostat may be stuck open. Is the coolant level OK in the rad and overflow tank???
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Traded 08 Frontier for 16 Frontier SV CC Long box, quite an upgrade. I do miss the 6 speed and Dynomax ex.
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2011 John Deere X720SE
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tedidit
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| Posted: Dec 31 2009 at 5:26am | IP Logged
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Had a similar problem with my 05 4.0L frontier. Added half a gallon of coolant to the overflow tank and got heat back. Was hoping not to turn it into a can of worms, easy fix worked this time...
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oldson20s
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| Posted: Jan 04 2010 at 12:52am | IP Logged
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seems like im still having the same problem as the original poster.the extra water in the overfill tank helped a little. i had my water pump replaced a few months ago, did the thermostat at the same time. the guy that did this for me showed me that there was a difference between the two thermostats. and im thinking that the new one is opening way too soon. because the truck isnt getting cold at all. i might have to get a new thermostat and see if that does anything,
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Nissan Frontier Forums : Problems / Technical
Topic: No heat
