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Heater question

 
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jasunderland



Joined: 26 Jul 2010
Posts: 101
Location: Wolcottville, IN

PostPosted: Tue Feb 03, 2015 6:21 am    Post subject: Heater question Reply with quote

I have a 2008 Nissan Pathfinder LE with the V8. I seem to be having some trouble with my heater. It will work fine when I am moving, but as soon as I slowdown it blows out cold air. Start moving again, blows out super hot air, come to a stop sign, cool air again. I'm getting ready to take it in, but just wanted to seeif anyone had any ideas?[/list]
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skinny2
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Joined: 26 Dec 2009
Posts: 1531
Location: BFE, Ohio

PostPosted: Tue Feb 03, 2015 9:16 am    Post subject: Reply with quote

Coolant is low. Happens every now and then and I have no clue where it goes....but top it off and you'll be good. Fill through the overflow tank when engine is cold. The markings are on the side of the tank...very hard to read. I usually stick a light on top of the tank so I can see the fluid level and markings.
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jasunderland



Joined: 26 Jul 2010
Posts: 101
Location: Wolcottville, IN

PostPosted: Tue Feb 03, 2015 10:28 am    Post subject: Reply with quote

skinny2 wrote:
Coolant is low. Happens every now and then and I have no clue where it goes....but top it off and you'll be good. Fill through the overflow tank when engine is cold. The markings are on the side of the tank...very hard to read. I usually stick a light on top of the tank so I can see the fluid level and markings.


Any chance it is leaking into the transmission?
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JP1548



Joined: 30 Oct 2013
Posts: 15
Location: Maryland

PostPosted: Tue Feb 03, 2015 2:50 pm    Post subject: Reply with quote

Possible, but not likely unless you are having transmission issues also. I was having the heating issue last month. I "burped" the lines, then refilled with coolant. Haven't had any issues since.
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skinny2
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Joined: 26 Dec 2009
Posts: 1531
Location: BFE, Ohio

PostPosted: Tue Feb 03, 2015 6:00 pm    Post subject: Reply with quote

jasunderland wrote:
Any chance it is leaking into the transmission?


I suppose there's a chance but for me it's unlikely as I have an updated radiator. I also do oil samples and there's no sign of coolant there. In my case it's disappearing very slowly. I've probably topped it off once a year and it doesn't take much to top off. The heater is very susceptible to low fuild.
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Ariesg



Joined: 12 Aug 2014
Posts: 15

PostPosted: Tue Nov 03, 2015 7:20 pm    Post subject: Driver side vents no heat. Reply with quote

Sorry in advance if this is an old topic. I noticed tonight that cold air comes out of the driver's side and left center vent when I run the heater. The rest of the vents blow warm air appropriately. Just had oil change and fluids topped off. Air flow is directed to the appropriate vents when I toggle through the various modes. Any thoughts?
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'08 Pathfinder LE
K&N AirCharger Air Intake System
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skinny2
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Joined: 26 Dec 2009
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Location: BFE, Ohio

PostPosted: Wed Nov 04, 2015 5:59 am    Post subject: Reply with quote

Sounds like it might be an issue with the auto climate control or sensors. Mine is a bit skittish but only on the temp settings. I pretty much run mine in manual mode because it's goofy as hell in auto sometimes. Make sure you've got the dual temp synch'd.
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Ariesg



Joined: 12 Aug 2014
Posts: 15

PostPosted: Wed Nov 04, 2015 9:36 am    Post subject: Reply with quote

Skinny2 - thanks for the response. I share your feelings about the auto climate controls and have only operated on manual. Switching back and forth to troubleshoot the problem does not seem to resolve the issue. Might have to break down and have the dealer have a look.
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eldoce



Joined: 11 Nov 2015
Posts: 1

PostPosted: Wed Nov 11, 2015 9:57 pm    Post subject: Heater Issue Reply with quote

I have an 08 v6 pathfinder and have the same issue. What was your resolution to the issue? I changed the thermostat, plugged in a codereader with no code generated. Added dye to the radiator with no findings.

Thank you.
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Ariesg



Joined: 12 Aug 2014
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PostPosted: Wed Nov 11, 2015 11:21 pm    Post subject: Reply with quote

Jasunderland - really haven't had time to investigate this further. More of an annoyance than anything at this point (until it gets colder). Next free time I have, I was thinking of checking all the fuses. Not sure if there are separate fuses for climate control on driver or passenger side. Other than that, I have no good ideas. Will have the dealer check it out next oil change.
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