Wow, I am so surprised to find out a lot of owners of the 2007 Nissan Xterra had this problem. So About two weeks ago I had noticed this funny noise while I was driving and noticed my engine fan was coming on more and more and my temperature gauge never changed and I never overheated, but the noise was getting worse and my transmission began to slip so I decided to have it towed to Alan Webb Nissan where I always took my vehicle, after 3 hours of having my vehicle the service manager called me back and stated my Radiator had a crack in it which caused coolant to leak into my transmission destroying my transmission and it would cost $7900 to replace both, he said good news though even though you are over your warranty by 16,000 miles my warranty manager is going to push it through to Nissan and get it covered for you, I was so relieved and thankful they did that for me at the time, not knowing that really they had no other choice as this was a defect from Nissan!!!! So to top it off they proceed to mention both my timing chains and tensioner need to be replaced and wanted to do it at the time they were working on the transmission but I would have to pay $1350. which I could not afford at the time and said I would get it in there ASAP. So panicking as to where I was going to come up with almost $1400 as I don't want my engine to blow up my husband was going to sell his motorcycle, so I decided to call around to certified Nissan mechanics and found one and mentioned to them about what the dealership stated about my timing chains and they said that does not sound right, go ahead and bring it in and we will check it out. So I dropped by and the mechanic took a look and listened to my vehicle and said he does not know what they are talking about, my chains are not going out, he heard no typical clanking of the chains nor did he believe they tore down that part of the engine as it takes 5-6 hours to tear that down to determine if the chains are bad and how funny they called me less than 3 hours after having my vehicle towed to them, he said there is no way, so he said if my chains go out I will definitely hear them and it will send a signal to my computer and make my check engine light go on and the code will be for the timing it off, he feels they were just trying to take advantage of me because I am a women and they weren't able to make money off me for the radiator and transmission so they thought they could screw me!!!! How sad you just can't trust anyone!!!!

I bought my Nissan because I had always thought they produced a good quality long lasting vehicle, and would stand behind such,BUT, I was wrong! Nissan is responsible for my problem, and they are not wanting to stand behind it! They are the ones that put the faulty radiator in them causing it to leak into my transmission causing it to go out!so I have had to replace my radiator and now my transmission! I am so disgusted!!!!! I will make sure I pass this on to as many people I can!!!!!! Shame on Nissan!!!!

This is so horrible. My car only has 79k miles and it's done. I only found out today that my transmission is on it's last breathe but it has been going on for a long while. It all began when my car sounded extraordinarily loud, the gears felt like they weren't shifting correctly when cruising on a downward slope (on freeway) and would rev, my heater didn't blow hot air while idling, only when I was on the gas. Finally my "service engine" light came on and I took it in. Stupid guy there said all I needed was an oil change, he did that and I left. The light turned off, my car wasn't as loud. 2 hours later the light was back on and now there seems to be more grinding and jerking when I stop and is louder when I accelerate. Today, My friend plugged in one of those things to test what the problem is and the worst signal popped up. My transmission is out! We checked the transmission fluid and there were CHUNKS of what looked like rust. I'm wondering to myself all day what the hell caused this because I am on top of my services and oil changes so how could this be? I just now found this website and I am in utter shock. I can't believe this same problem has happened to everyone else. I am calling Nissan first thing tomorrow. I will update once I find the solution and total cost. At this point we shouldn't have to pay anything. And I will refuse to pay and demand to have this fixed. I work so damn hard to pay off my car every month. This car is 5 years old, this is BS. This used to be my favorite car, I thought I was going to own an Xterra as my car for many many more years, but with this problem, never again. Especially if they don't compensate for their mistakes.

Took my 2007 Nissan Xterra to the dealer as the transmission was dragging. Never did I think I would need a new radiator and transmission. I find out that this has been happening to many other customers as well. I was told at first it would be $6,600 to fix. There was no way I could or would pay this much. Then they come back and tell me it will cost $2,500 for the repair. At first I thought this was a better price until I found that if this issue happened before my Xterra reach 80,000 miles, it would have been covered in full. Heck, I only had 2,700 miles over this. I had to pay the price as this is my only vehicle.

Nissan knew the transmissions were bad in these vehicles and they should be covering the repairs. They produced these vehicles with a bad design for the transmission. Own up and help your customers. If you did this, more customers would come back again and again. As for me, I will not buy a Nissan again. I have learned my lesson!!!!

Like the man said, "Timing is everything." I have a 2007 Nissan Xterra that, two weeks ago had 132,000 miles on it, mostly highway miles. Today it still has 132,000 miles on it--that's because it's been sitting in a local transmission shop since then waiting to have a used tranny (37K miles) from Albuquerque and a new two-row radiator, both purchased out of pocket ($3,000), delivered to be installed. Which will run a little more than an additional $1,200.

I'm registering this complaint for two reasons: First, to confirm that the radiator/transmission problem in Xterras isn't limited to 2005 models. One poster on this site says that even after Nissan was aware of their quality/design problem and installed a different radiator from 2007 on, that they decided to stick some of the old radiators into 2007 models to see if it would happen again. WHAT!? I don't know whether that claim is true or not, but if it is, I can tell you authoritatively that the same damned thing happens! Let me see....I hit my thumb with this hammer and it hurt like a bitch! But wait, let me hit my thumb again with this hammer to see if it hurts this time. And what part of 'Moron" did you not understand?

The other reason I'm putting my fun on line is to stress another aspect of Xterra-owning. Got a 2005-2007 Xterra that hasn't eaten its own transmission? My advice--don't wait....have a new radiator installed now. The money you spend now will be roughly 15-20% of what you'll spend sooner or later. The embarrassing part is that I actually knew that Xterras indulged in self-murder and that at 125,000 miles I was almost certainly living on borrowed time. But I had other expenses....the holidays were coming....my son's college tuition was coming up....my cat needed a bath....I'm sure there were other swell reasons. NOT! I knew what to do and I just didn't do it. Timing is everything. I think I knew that....

PS. I'm fixing the Xterra and I'm going to keep running it. Screw Edmund's effete twits and their review that focuses first and foremost on the Xterra's lack of a space-age sound system. You want tunes, Edmund's? Get a boom box. The Xterra doesn't pretend to be anything but what it is--a hard-nosed truck that gets the job done. I loved mine for 132,000 miles and I plan on loving it for another 132,000 miles. This crap isn't the Xterra's fault. It belongs in the lap of whatever pencil-necked dipwad designed the radiator or the Nissan purchasing agent who took the lowest supplier bid. When I can tow a loaded 6 x 12 cargo trailer uphill against a West Virginia headwind doing 80, I've got the right truck.

After contacting Nissan Customer affairs several time to explain how I just purchased this vehicle a year and a half ago because I hear about how NISSAN is quality and stands behind their customers this happens. They refuse to even consider assisting me even though i explained the hard position I was in. I did not have the cash nor the room on a credit card for this repair. I explained how their service rep mentioned that the transmission can lock at any time and cause an accident but he still let me leave in an unsafe vehicle. The customer representative told me there is nothing they can do. They can not even assist in paying part of the deductible. She told me she doesn't recommend driving it otherwise I may be stranded at any time. This was after waiting days for someone to call me back. My wife had also mentioned it on her facebook and NISSAN contacted her making it look as if they truly care requesting our info. They took over a week to contact us and pretty much told her sorry we are screwed. After this I would never buy another NISSAN again especially now I was told when they returned my car to me my timing chains are bad. Hmmmm the vehicle wasn't making that noise when I took it. Everything about NISSAN is shady from the Main Corporate all the way to their service departments. NEVER AGAIN!

Check-engine light went on at 101K and dealer replaced vent control valve, plugs, timing chain assembly, flushed cooling system and transmission. Did not mention coolant in transmission, but car never ran right after that - bad mileage, lukewarm heat. Took it back to dealer and they flushed cooling system again. Dealer didn't mention transmission but mileage was still bad after that and started to get small rumble in overdrive which went away when overdrive was switched off. Heater finally stopped working after coolant almost completely gone. This must have been a very slow leak since this was 30K after the transmission flush. Transmission fluid was compromised by then. Took it back to dealer who finally mentioned this ongoing problem with this model Xterra and said warranty had been extended to 100K. Unfortunately I now had 135K. This is two bad Xterras in a row. Combine that with the failure of the dealer to even mention this problem after I spent $3K on maintenance post 100K and I am done with Nissans!

My 2007 Xterra ( with 60K miles) began to emit the smell of coolant when the weather was hot, I checked under the hood but did not see anything leaking. Checked the radiator and it was a little low. Coolant was purple(?) Shortly after that I started to experience a vibration and grinding occasionally at around 1100 RPM and low speed when the engine was hot. Seemed like it was the transmission.

Read online regarding the issue with radiators failing and ruining transmissions. Made an appointment with West Hills Nissan in Pittsburgh to have it checked out. I printed off some posts from the web that other owners experienced this problem as well a copy of the class action lawsuit regarding this radiator / transmission failure issue and included it in the envelope when I dropped it off in the evening.

The next day the dealer called and said they were going to install a brand new radiator and brand new transmission in my vehicle. Wow!, Said it was an “Intermix” problem. Parts were $6,000. The only thing they recommended was that I pay for a second flush since this was not covered by the extended radiator warranty (to 80K miles). Total job ended up costing me $120. Thanks Nissan!!

My Nissan has been nothing but problems and I have maintained it and serviced it faithfully. I had taken my truck for service twice prior to this incident for regular maintenance and nothing was detected as far as the radiator cracking. This is what causes the transmission to go.

The first time I went for service it was still under warranty nothing was said.

The Second time at 80588 another service was done basic oil change and tire rotation supposedly everything checked out fine each time a multi point inspections was done. I imagine this includes placing the vehicle on the diagnostic computerized machine. Well, shortly after this is when my major problems began. My vehicle began to vibrate as if I was on the highway riding on the shoulder were the warning strips with the grids vibrates your car when you go over onto them. I related the vibration to the recent tire rotation I checked the tires made sure nuts were tight and nothing was off; everything checked out fine. The awkward vibration continued so I scheduled an appointment with my local Nissan dealer and that’s when I got the devastating news a whopping $7371.00 in repairs for a cracked radiator and damaged transmission. Nissan is fully aware of the problem and so are the dealers.

Nothing was said to me with prior visits and they quickly knew what the problem was and were certain of the problem. These dealers are definitely aware and making money off innocent consumers for these unjust out of pocket repairs. Where is the justice in all of this?

I WILL NEVER OWN A NISSAN AGAIN ! I purchased my car on my own right after my high school graduation thinking i will have this car forever. I needed a dependable car for college. I financed it for 12,000 dollars. My second semester of college in march my check engine light comes on and it starts to make a loud noise when i slow down to stop. i stop driving it to make sure it doesn't cause any more damage. It said it was a sensor that needed to be replaced i replaced the sensor. When draining my transmission they discover there is a lot of radiator fluid in my transmission. They replace the transmission fluid and it drives okay till all of the sudden it gets like it is not shifting down properly. i pull over and turn it off when i go to turn it back on it wont turn on. i bring it to a shop and find out the radiator was defective and my transmissions computer is fried. I had to drop out of college because i had no way to commute to college. i still owe 10,000 dollars for this car and i can not use the car i just got my credit to a good level and don't wanna mess it up i have no idea what to do since Nissan wont do anything about it.

Filed a lawsuit against you people , and signed up on a class action lawsuit online, apparently this has happened with thousands of your trucks , which probably explains why the dealership told me to contact consumer affairs , which is a joke , do you realize that I almost hurt someone with my vehicle because it died in the middle of an intersection , and all you can tell me is that you can 't help because my truck is out of warranty , pretty convenient considering the problems start after 85,000 miles , a truck that I took care of from day one , And was stupid enough to purchase that lemon, what is it with you people , have you no integrity , have you know conscious , just admit that there is a problem and fix it and move on or does somebody have to be killed before you admit this is a defect . Recall the car before someone really gets hurt.

Disgusted , piece of garbage , Nissan Xterra owner

The defective radiator allowed antifreeze into the transmission about 2 months ago. About 2 days after the warranty expired. Nissan refused to cover it under warranty so I took it to a dependable service technician who replaced the radiator and flushed out the system. The vehicle ran fine up until May 17th,2012. The vehicle would not start so we had it towed to our service technician who discovered that the transmission computer had failed and he believes the transmission will fail next. My wife described the vehicle as being difficult to move under acceleration and a strange humming noise before it failed.

I don't even know where to start. One day my car just starts wildly overheating and so I stop and let it sit for a few hours to cool down, later come to find out that it wont be going anywhere with out a new transmission, radiator and whatever else all that needs. Then I find out that Nissan knows about this common problem but wont do anything about it. Why wasn't I warned that this could happen? I would have done whatever to prevent it. I will never deal with Nissan again. Now I have no way of fixing it because I can't afford it. I already barely make it by on my paycheck. I can't afford another vehicle and now have no way to work. What the Hell am I supposed to do?!

Well took my 07 Nissan Xterra to be looked at because it was starting to rumble at like 30 to 40 mph...Got a call from the shop today saying it is an issue with this vehicle where the coolant is getting into the transmission...estimated cost of repair 7,000...you got to be kidding me...and Nissan is not recalling them...I have always spoke highly of Nissan...At this point I will never own another one and I plan on making sure none of my friends do either...Unless Nissan steps up and takes responsibility for their manufacturing mistake...I will be contacting the Attorney General and also seek out a class action lawsuit...I payed a lot of money for this vehicle and I want Nissan to accept responsibility for their mistake.

I am so upset but at the same time I know I am not alone on this. As I keep reading and reading I realized this transmission problem I have with my 2007 xterra is very common. If they would only freaking advertise it with red letters that the truck will die reaching 90k!!! I am searching to see what options I have out there. I have since paid off the truck and I am not about to buy a new one. I am deciding if I should buy it used (transmission) or have it rebuild. As per the mechanic, I also need to replace the radiator if not its not going to be fixed. If anyone have any sugguestions or if anyone have been thru what I am experiencing I would truly appreciate feed backs and advices before doing the big purchase. BTW the truck is driveable and only speeds up at 30