Troubleshooting & Repairing the Nissan Xterra Air Conditioning An awesome member of our community made this guide. It is not managed by iFixit staff. The 2000 Xterra's Air Conditioning is sometimes cool but may not work other times. The Air Conditioning System will get cold when the Compressor Clutch is engaged but the clutch quickly quits and just blows semi cool to warm air. One possible cause of this symptom is that the Thermistor may be defective. Here is how to troubleshoot and replace the thermistor. The Thermistor connector is located below the glove box. You can see the white connector hanging out from under the dash. The purpose of the Thermistor is to keep the Evaporator from freezing. It does this by measuring the temperature and turning off the Compressor when the Evaporator gets below approx. 40 degrees F allowing the Evaporator to defrost. Locate your Air Conditioning Compressor. The clutch is the center area. If the clutch is engaged the center area will be turning.

It will be turned off by the Thermistor to prevent the Evaporator from Freezing. Here are the tools that you'll need to complete this guide. Test the thermistor by turning the Engine ON and the Air Conditioner ON. Using a Voltmeter (set to DC Volts), the Green/Orange wire will have battery voltage (around 13.5vdc) from fuse #29 in the under hood fuse box. The Blue wire will have battery ground from the AC control assembly. The most important wire is the Blue/Black wire. daikin split ac dealers in bangaloreThe Voltmeter will show less than .5 volts with the thermistor on (temperature above 45 degrees F). air handling unit cara kerjaIt will show a nominal 4-5 volts with the thermistor off (temperature below 40 degrees F).multi split system air conditioners melbourne

During inital operation, the temperature at the evaporator will be above 45 degrees and the Voltmeter should read less than .5 volts. When the temperature of the evaporator is below 40 degrees F, the Voltmeter will read 4-5 volts which turns the Air Conditioner Compressor OFF. This keeps the Evaporator from freezing. If your Thermistor is reading 4-5 volts when you first turn the AC on then your Thermistor is defective and needs to be replaced. Replacing the Thermistor requires removal of the glove box. Remove the four upper screws and the two lower screws as indicated. Using a philips screwdriver, remove three screws. (as indicated by the orange circles) Using a 10mm socket, remove four bolts (as indicated by the blue squares) The two on the right are easy to see but the two on the left are difficult to see and are behind structure. Here's were it can get tricky. Of course the correct way to replace this is to completely evacuate the system and remove the evaporator but with a little ingenuity you can have it replaced in 10 minutes.

Open the evaporate shell by splitting the halves. I used a spring clamp, backwards, to help me hold the halves open. Using a long pair of needle nose pliers, gently work the Thermistor out of the evaporate fins. I purchased a new Thermistor for $52 at the dealership. Install the new thermistor by using the Long Needle Nose Pliers to insert into the evaporator fins. Removing the connector from the bracket was difficult and I broke the bracket. I was happy to see that a new a mounting bracket came with the new thermistor. You will need a small sheet metal screw to attach the mounting bracket in a hole next to the existing mounting bracket. They provided a hole for you to mount the new bracket. ( I guess they al To reassemble your Air Conditioning System, follow these instructions in reverse order. 12 other people completed this guide.Four SeasonsUniversal Air ConditionerDelphiHPS Silicone HosesEarl's Performance PlumbingDormanMaxzoneVintage AirLuber-finerSpectreFJCTracer ProductsACDelcoTectranVibrant PerformanceStandardTYCInterdynamicsSpectra PremiumDaycoGatesMetrixBTPAPDIB'lasterMaradyneContinental ContiTechMotorVacKats HeatersK-MetalGenuineUViewOSC AutomotiveTuff Stuff PerformanceMarch PerformanceAir ProductsCliplightBeck ArnleyDensoSpeed FXRobinairMarkalHolleySantechWIXMastercoolOriginal EquipmentSPAL AutomotiveCSFSta-LubePilotBoschHastingsATPNPNFramHookerAuto Metal DirectVDOPurolatorK&NTruck-LiteAmerican CondenserMahleWalkerMiltonPeterson Fluid SystemsPJ1NationalRTI TechnologiesRampageInnovate MotorsportsShermanCPSThe Nissan Xterra is an SUV marketed by the Japanese automaker since 2000.

Constructed on Nissan’s F-Alpha body platform, this vehicle features impressive dimensions and both 2WD and 4WD layouts. The Xterra rides a 110 inch wheelbase and measures 178.7 inches in length, 72.8 inches in width and 74.9 inches in height. Moreover, the Xterra boasts powerful performance, being outfitted with a 4.0L V6 rated for 265 hp and paired with a five-speed automatic or a six-speed manual transmission. The most recent models of this dynamic SUV also feature a large choice of interior amenities, including a navigation system, heated front seats, improved audio system and many more. We are proud to present a large variety of top grade Nissan Xterra air conditioning and heating parts. Our team offers you an unmatched selection of products that will meet the demands of both budget-minded and quality-oriented customers. We offer only fine quality replacement parts made to fit your exact model of the Xterra in the most precise way. Cooperating with such famed aftermarket brands, as Spectra Premium, RE, APDI, Vista-Pro, Sherman, etc. we feature products that meet the strictest criteria of the industry.

So if you are in search of the perfect blend of unparalleled quality and affordable prices, then our web store is the right place for you to be.Find parts for your automobile Go to My Vehicles I have taken my Xterra back to the dealers at least on five occasions because my air con just stops working. On the last two occasions they said it was the high pressure hose and both times it cost me over $450! The last time I got this repaired was in May 2006, and now as before the Air Con has just stopped working again!Does anyone have any idea's what the problem could be? The dealer in Tampa isn't very helpful at all and their lack of help to solve the problem is causing me great concern, I would just like the problem solved once and for all, if anyone has any alternative ideas I would be most greatful.  Post this up over there and see what they can do for you. Hey Henry, We wrote this on the main Nissan site. I suggest you do the same and I would encourage you to make it public if you have the opportunity like we do w/our local TV station.

The airconditioning in our 2000 Nissan Xterra has gone out FOUR times, all due to the SAME high pressure hose being faulty. We have replaced this hose three times, each time the parts manager at our local Nissan dealership refrencing how many of these hoses he sells and that it is definately A PROBLEM. Now that we are on our FOURTH time, and having a 8 month old baby w/summer right around the corner, I'M FED UP. Nissan needs to correct this problem and either make a hose that won't break or replace my entire system. After searching the internet, I have found that there are many people just like me, that have all paid and paid and paid to have their AC fixed by Nissan, same hose everytime. Why has there not been a recall?? Not to mention the driver window problem that Xterra owners are all experiencing. What is wrong with Nissan?? We have owned 7 Nissans - Xterra, 240 SX, Pathfinder, Sentra, 2 extended cabs and a truck. This will be the last one we buy if Nissan does not make this right.

I also have a call in to our local news station who has a special segment on this very thing. I am a stay at home wife and mother. I have nothing better to do than to persue this thing until your company either issues a recall so everyone can finally have their AC permanently fixed or you replace my entire system, free of charge. My local dealership, Hudiberg Nissan, has been of no help. Seems to be "my problem" and I need to see if "my part" is still covered by a part warranty so they can give me yet another FAULTY HOSE so I can repeat this process EVERY YEAR until I sell this car. Not to mention labor and freon costs that we are out each time. I am extremely frustrated and like I said, I'm prepared to go as far as I need to - this is an obvious problem that Nissan needs to take responsibility for and FIX. I have not been to dealer yet, but I am in same boat.  My regular mechanic has tried everything to find the leak and cannot find it.  Last summer he put coolant in a few times to get me through summer.

After reading your posts though, I think I will try a local shop that specializes in air conditioning before I start handing $450 over to my local dealer every so often.    I will come back and let you know if I have better or worse results. i have a 2000 xterra all the same problems ! had both hoses replaced !no fix ! then i posted my problem .... here is the magic fix !!! thermo probe in the evap. its behind the glove box some where. the  nissan mec told me he has seen it a million times. guess what that was it !!! i have had every thing else changed. both hoses.charged recharged . thats how we found the small hose leaks ! but if you have tried all that and not the thero probe  thats going to do it . i had all the same problems.  if you have had it checked for leaks and its fully charged and the low preasure switch is good. i had both my hose replaced and the low preasure switch replaced. than charged.and heres the only thing no one checked !!! temp sensor in evaporator !!!

that did the trick !!!!!! I have a 2000 xterra...All of a sudden I had no cold air. Along with that, there is a terrible roaring (or rumbling)noise when the ac is running. The noise is in the dash somewhere, can't hear it under the hood. I recharged the system and that lasted about a day or two. Maybe a seal or something? I am in Georgia and it is about to get HOT, and I don't have the $$ for a shop to rob me of. I am having the same symptoms.  Replaced the high pressure and low pressure hoses.  A/C works great sometimes, othertimes not at all.  I am going to follow up on your suggtestion.  Do you have a part number for the thermo probe.  When I called Nissan Parts, they seemed at a loss with just thermo prob in the evaporator.  If I could direct them a little more specifically. Thanks, this is a troublesome problem. sorry it took so long o reply. it was called a temp sensor not a thermo probe. sorry it is located behind the dash around the glove box.it is beside or in the evaporator.

if you can not get any info on a part number let me know. ill get it from my mech.i replaced both my hoses and the low presure switch. worked ok but not right untill i heard obout this temp sensor in evp. Hey Everybody, This part that you guys are referring to is called a Thermo Control Amplifier. It is 58 bucks at my Georgia dealership. lol  yeap thats it ..... thanks man !!! I do have a 2000 xterra and we do have an issue with the A/C:It worked fine till we had the car in the shop to do the timing belt maintenance (replaced all belts).I went back to the dealer and the guy who did the job looked at it and fixed it right away, (I didn't watch what he was doing but I am guessing that he forgot to put a plug in). Worked fine for the whole last summer now after the cold Chicago winter we switch it on and nothing but a noticable click from the compressor but no cold air.Any guess what it could be? yeah, we have a 2000 Nissan Altima and the ac goes in and out. have had the condenser replaced by nissan dealership and it's still not working right.

i've taken it in 4 times. this last time they said it "could be" the thermomaster. what the heck it that? Nissan said it would be another $300 to repair this after paying $600 for them to replace the condenser. part price was about $40 bucks and $270 was labor. sick of nissan's runaround. not buying nissan again unless they can make good on their crappy vehicle parts and service. tired of their runaround.   we have another friend who has the same make/model and his ac is doing the same thing. also, cd player went out in his as did ours. Thanks for the heads up.  I to have been having the same problem with my 2000 Xterra.  My husband and I have replaced everything except the compressor and the part you had mentioned.  I did note that you gave the correct naming for the part in another area.  We will definatley check that out.  Otherwise the dealer, pep boys, and a shop that specializes in car air conditioning has not been able to figure out why this is happening.   I will hopefully try that within the next few days and let everyone know if that helped my same problem!