Question about 1997 Nissan Pathfinder

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1997 Pathfinder only blows cold air

I have a 1997 Pathfinder. It reads at the normal temperature but only blows cold air.

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Sounds like one of 2 problems - Either - and best - sounds like an air mix door (or Heater control valve) is stuck in the closed (or cool) position - a fairly easy thing to repair, but sometimes a bit difficult to get to - some mix doors are near the evaporator box under the dash, and other heater control valves are under the hood (fairly easy to access), they it allow hot coolant to flow through the heater core, where air is blown by athe hot core to provide heat. The worst of the possibilities is that the heater core its-self is clogged and not allowing hot coolant to flow through, in which case, the dash (alot of the time) has to be removed to replace it. A good repair shop can actually save you a bit of money here, if they are familiar with P-finders and how they come apart, not to mention that an experienced tech doesn't have "left-over" fasteners. Bad squeaks and noises can come from an incorrectly re-installed dashboard, and often alot of time can be save as well - and we know time is money - godd luck and I hope this helps a bit at least!!! DD

Posted on Jan 28, 2009

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