I am having a couple minor issues with my 2008 Pathfinder
SE 95000 m. First is the heating issue once the engine is warm and we have the heat on full blast and the engine is warm. ( the car has heat in dashboard separate controls in second row seating and controls upfront to control third row seating) The second and third row seating is on full blow and turned to hottest heat setting and will only blow cold air out of the vents whether the roof vents or floor. And the dashboard heat will blow warm air but if you start it in the morning at idle it will not blow real warm out of the dash either an it can be running a half hour. But if i start it up let engine warm up it blows cold while at idle but when it gets to 2000 rpm it blows warm and hot air at 3000 rpms that's with the dash heat set on 90 degrees. additionally I can be driving an hour so engine is at normal operating temperature and say i stop at a fast food drive thru in a line after a min or two at idle the heat isn't hot anymore set on 90 and set another min or two and the dash blows cold again. but as soon as i start driving over 2000 rpms it gets warm out of dash vents. second and third rows is always cold air no matter what. Can you help me out any with ideas on this issue please?? and explain a little about the heating cooling system in this suv ive only ever had sedans before an reg cab trucks this is my first with third row seating. Does this suv have three heater cores since its zone controlled with three individual controls. I can tell you when i had it serviced and gone over (ive just bought it owned about months) the tech went over it an said it had brand new air conditioning lines going to the back) that's all i know. It only has 95000 miles and has been expertly kept before me. f
JA: Have you checked the coolant
? Have you noticed any leaking?
Customer: and good morning!!
JA: Hi. What do you want help with?
Customer: Yes checked coolant yesterday took radiator cap off it was full and coolant was neon green and looked excellent. However I tried to check the reservoir but the white plastic is hard to see through to see the level so i couldn't tell if it was full. But i assume that's just an overflow tank but radiator was clear full. Im gonna cut a stick of wood a half inch by half inch to check the overflow tank to messure its level today. but even if overflow was low that wouldn't cause my issue would it?
JA: Are you fixing your Pathfinder yourself? What have you tried so far?
Customer: It depends on what the problem is if i fix it myself i usually do all my mechanical work myself brakes
ect. but if its suspension or very technical i take to mechanics. It just depends kind of. And so far im not sure what could be wrong as im not familiar with this heating system its not simply just a thermostat heater core and coolant to produce heat as in a simple sedan. it has those three zones individually controlled so does that mean there is more than one heater core? Right inside the back latch is a blower so it there a heater core inside?
JA: Anything else you want the mechanic to know before I connect you?
Customer: No that's about as thorough as i can be until i can get some ideas on things to check or test and see what results of said tests are. Thank you for helping me!