This is an informative video on how to replace a heater core in a Nissan Pathfinder 4.0. The process might be same from 2006 - 2012 years. This process may also work for Xterra as well. Please proceed at your own discretion
Thank you. My heater core has gone put an no one wants to work on it. Now I know why. Im hoping to be able to do it myself with your video. You make it look so easy.
I have an ‘06 and just a tip on removing the heater core manifold pipes that are under the hood. It is plastic and very fragile. I had to replace mine because of a hairline crack and a mystery coolant loss. One day a puddle under the pathfinder. Not cheap part either. But easy to replace. I did a heater core on my ‘88 Nissan years ago. Took out everything but the windshield and steering wheel.🤣 Thank you for the video!
Greetings Bro! You're the Best that ever did this video stuff! Thank You Tremendously for taking time to show us All how to complete this formidable task!!😉
I just took the pass airbag out and gained access to the heatercore lines and cut them ,connected heater hose to each side with clamps and bypassed the o-rings....works great if you only have a o-ring leak
This is why i don't want anyone doing this on my truck. I will do it myself, They will break clips and won't replace them, They will have left over bolts and us metal items like a screwdriver to remove plastic pieces. I don't know if anyone knows, but the plastic on these truck scratch just by looking at them. Some of these mechanics just don't give a Fook about scratching up your interior. Great work and thanks for sharing.
I can’t move the metal frame, I’ve already unscrewed everything I can (the brackets on the bottom, on the sides, etc.) something is still holding it, can anyone in the know tell me what the problem might be?) Thank you)
Ill be honest, I went to 4 AC places and they all told me it was the AC Evaporator, Spoke to a Nissan mechanic and he laughed, he told me most AC guys claim it's the AC Evaporator When it is really the Expansion Valve leaking at O rings or stuck in a position. He told me those AC Evaporator are built like a tank and don't leak as easily as most claim. I took the Nissan Mechanics Word and changed out the Expansion Valve and O rings, took me 20 minutes and I am not a Mechanic. I got my AC Refilled at an AC place ive never been to before because i did not want to take it back to the other 4 AC guys who told me it was the AC Evaporator and try and make an excuse to say I have a bad leak. Anyways, AC was filled, new AC guys says you have no Leaks and as of today AC is Ice Cold on my 06 Nissan Frontier. It turns out my O rings were leaking from thr Expansion Valve and they were pretty dry when I pulled them out. Make sure your AC empty before changing expansion Valve or the refridgerant that comes out will give you a nasty burn on your hands, thats how cood that refriderant is I gone with my gut feelings on a few jobs, turns out i was right and right again in it not being the AC evaporator on my Nissan Fronier 06 with only 37k miles on it, Mechanic was correct and so was my gut feeeling. I recommend all to change the expansion valve first before pulling out complete dash it is between $18-$25 and 20+ minutes to do first, then get it refilled and see how it goes. I cant see Evaporators going out that easily. The mechanic i took it to who told me it was AC Evaporator was removing an ac evaporator from a 2019 vehicle, now you know that AC guys is a clown. AC evaporatore don't last 4 years 😂
Thanks for sharing your experience and glad you were able to get it diagnosed properly and used your own judgement. The heater core is easily diagnosed, first it leaks antifreeze in the vehicle, secondly your antifreeze level drops. If you run your heater it makes your windshield foggy. Other signs include wet carpet under or around glove compartment. Antifreeze smell inside the car, your heater wont work.
Dude, why didn't you pull the heater core out to show it and where the leak was? I think I'll just get a new vehicle. Way too much trouble.. seriously don't understand why manufactures make us so difficult to get the heater core out..
I couldn't agree less why they make it so difficult. To show exact leak I had to run pressure and quite frankly I wanted to get done with the job. If I have to redo, I will just bypass the core and add a plugin heater.
