Problems with 2007 Nissan Pathfinder POWER TRAIN

At approx 50k miles there was a clunking sound when putting into gear, short time period later a coolant smell. then the transmission was slipping. finally there is a heavy vibration when shifting or accelerating and the car does not warm up when sitting idle. *tr

I have a 2007 nissan pathfinder, nissan sent me an extended warranty on the radiator to 82000 miles, stating that it will crack and leak into the transmission causing damage. my pathfinder's radiator failed at 109000 miles and nissan told me that i will be responsible for repairs because it was past the extended warranty. so the radiator cost me about $600 and the transmission failed and cost me $2500. i complained to nissan and they don't care, i have seen online that this is a major problem with nissan but they will not recall the radiator, they have horrible service. *tr

If you are not already aware, there have been many problems concerning this vehicle, which are almost all similar to each other. personally i have been experiencing transmission problems which range from: rough engine vibration at 40mph, and 60mph, thermometer spikes when accelerator is engaged at 2500+ rpm, violent jerking of car, loud engine fan, and most importantly loss of forward acceleration when actively pressing on gas pedal. i brought this to a nissan dealer to have this diagnosed and they have confirmed that my initial worries were correct. a defect during manufacturing of this vehicle has caused radiator coolant to leak into the transmission or vice-versa causing the deterioration of both systems. this in turn correlates to engine overheating and many other problems while driving this vehicle also the housing of the timing chain is non-existent. the vehicle diagnosis and price quote for repairs nears the $10,000 mark.a price which is almost half of what i purchased the vehicle for. as of yesterday 3/17/12 my vehicle has lost acceleration power. *tr

Vehicle jerks violently at 50 mph and 70mph. multiple incidents where vehicle has lost all acceleration power in freeway. near missed accidents. valve body is flooded and vehicle does not start anymore. *tr

This vehicle has approx 80k miles when heat stopped working and transmission started shifting hard. i was informed by my mechanic that coolant had mixed with the transmission fluid and that it was a known problem at nissan. we replaced the radiator and fluids. a few months later the transmission is inoperable and nissan has refused to acknowledge the issue. my mechanic at midas of richmond va informed me that he sees this problem all the time and that nissan is doing nothing. clearly, nissan knew this was a problem and has refused to take any action due to the high cost of the repair. this is clearly a safety issue as well as a known defect issue. i cannot believe the manufacturer would be allowed to install a major vehicle component with a known defect and for the customer to have no recourse.

Nissan has extended the warranty on this issue (transmission and radiator} and when i contacted them they said it had to be checked by a nissan dealer. i had to have it towed 250 miles away to the nearest dealership at my own expense, wait 2 and a half weeks for them to tell me because i bought it used (not new} they decided that they can not cover it under the warranty. so a used vehicle has no warranty? now i have to pay the dealership and have it towed back at my expense another $375, this is wrong on all levels and should be covered they should not be allowed to take advantage of people like this. there has been so many complaints about these vehicle's losing power in traffic, on the highways and how they barely avoided getting into major accident's. i know that the new york times has done up an article about this and i think if we can bail out the auto industry even though nissan did not take a bail out we should make them accountable for their defects or do we have to wait till someone dies because of these defects before someone makes them accountable. i paid a lot of money for this pathfinder, first gm burned me very badly and now nissan. please please.... someone needs to do something about this. "pleading for your help" thank you *tr

It was november 2011, i was driving my nissan 2007 at that time i was 9 months pregnant. my daughter who was 5 years old was with me. i was entering the freeway when my car started to shake,make noises and it started to slowdown on its own. i presses the speeding pedal but it kept loosing power. my daughter was crying because she was scare. i was crying too i did not know what to do i was in a dangerous situation because it happen when traffic was at its pick. i could not stop because cars where behind me and i could not speed because my car was loosing power and it smell like something was burning. i manage to get off the freeway with the emergency lights and stop the car at the moment the car die(no power). a tow truck had to take as home. nissan would not fix the problem because of the miles/warranty whichever comes first rule that they have. they would fixed for a lot of money anyway i took it to a shop an i was told it was the radiator which damage the transmission. i had it repair and a few days latter all the emergency lights on the car turn on and went crazy and the car stop at ones this time it was the gas tank. it scare me so much that i call my husband and told him, "this car is going to kill me and my children" nissan pathfinder is dangerous and something must be done or someone is going to get kill. it is a safety issue please help us. do something we need help pathfinders are dangerous nissan won't fix this factory problem with out getting pay. please a recall needs to get done. i beg you do something this is the usa or not? i know at list 3 more people that had the same problems with this cars and all the mechanics agree that it is a factory problem. i will never buy a nissan it is a lemon! first radiator linkage then liquid in transmission then replace transmission than it will be the gas tank what is next? *tr

Pathfinder started hesitating at 40 mph regardless of city or highway driving, had transmission fluid changed and was advised by my mechanic there is a leak from radiator into transmission line, have since then seen transmission fluid a milky color and i cannot drive vehicle with overdrive on, when it drove with od on at about 40 mph there is no shifting of gears. *tr

Transmission had begun to slip while transitioning to and from gears(no matter the speed).when putting vehicle into gear there would be this horrible "jerk", as if the transmission or engine were about to fall out!!! vehicle would not warm up while in park. once the vehicle was turned off it would only start back up if the "ecu fuse" were replaced. took vehicle to transmission specialist and he stated that the radiator had been leaking into the transmission!! this issue is now subject to electrical issues!!! his recommendations, a new or rebuilt transmission. i have read reviews were someone has even had their transmissin replaced only to have the same issues or similar in nature. nissan is aware of the problem and is not utilizing an appropriate recall. *tr

I haven't finished paying off my car and already the transmission of my nissan pathfinder 2007 xl is failing. the radiator spilled the cooling liquid into the transmission, which then proceeded to cause serious problems to the transmission. the guaranty expired after 100 000 miles, even though prior to that the mileage the guaranty still applied. now, in order to fix the transmission, or replace it for a new one, will cost me over $5000usd. i'd like to unite to the existing complaints/lawsuit against nissan on the matter of the faults found in the 2007 nissan pathfinder, as i feel that is unfair that the company with the knowledge of fault in its product has not warned the public and has proceeded to sell the product to the public, leaving us with a faulty machine that in the end is more expensive, and not a satisfactory product. i am hopeful that the company will response to all of our complaints, stepping forward and taking responsibility for the inconvenience they have caused, and hopefully taking ownership of the expenses that due to their lack of responsibility, have been incurred on to us, the consumers. *tr

As i was driving my 2007 nissan pathfinder (120,000 ,miles) through a busy intersection, i lost the ability to accelerate at all. after a very frightening couple of minutes i was able to steer the vehicle through and coast down a small incline to a nearby parking lot. after threedays our local mechanic determined that he was unable to fix the car, as he concluded that the ecm had failed. the vehicle was towed to the local nissan dealership, who agreed that the problem was the ecm ($1014 repair). after three more days, they've now told us that the problem is not the ecm, but the fact that the radiator fluid has leaked into the transmission, destroying it. they are quoting a repair cost of $7500. i have been without a vehicle for over a week (renting a car became cost prohibitive), and now will spend the morning trying to find a more cost effective way to have the vehicle repaired. i've learned that this is a common issue of which nissan is completely aware. the coolant leak/transmission failure is in fact a design defect in the vehicle. it is completely unacceptable that nissan has not recalled these vehicles, or at the very least made the repair free for consumers regardless of vehicle mileage. i will never purchase another nissan after this experience. *tr

While driving on the highway, i felt my transmission seem to shift very roughly into overdrive, and usually occurred between 40 and 50 mph. over the course of about a year, it continued the behavior off and on, until it began to do it daily and i took it to the shop. it was diagnosed as having had antifreeze leak into the transmission due to the oil cooler lines cracking, a common problem with nissan pathfinders, and other nissan vehicles of my model year. there was metal in the transmission pan which signifies that a rebuild is inevitable, all due to the mixing of antifreeze in the transmission. the radiator must also be replaced due to the mixing of transmission fluid, as the mechanics found the "milky" substance, typically associated with the mixing of water and transmission fluid in the radiator. so far, i have been quoted approximately 6,300 dollars for a repair job on this vehicle. *tr

Tl* the contact owns a 2007 nissan pathfinder. the contact was driving 40 mph and attempting to accelerate but the vehicle would not respond. the vehicle was towed to a dealer for inspection where the contact was advise that a cross contamination of fluids had occurred in the vehicle and the transmission would need replacing. the dealer also advised that the failure was a known issue with the make and model vehicle. the vehicle was not repaired. the failure and current mileage was 80,200!!!!!

2007 nissan pathfinder. cooler for transmission fluid resides in radiator. radiator cracks, allowing engine coolant into transmission, destroying transmission. *kb

Wife first noticed a vibration on her way home from school with our daughters. became progressively worse over time. i had tires, bearings, etc checked. no problems found with any of those. looked online and discovered that a lot of pathfinder owners were having transmission problems. checked coolant and found that it had in fact mixed with transmission fluid. i switched the lines from the transmission to trans cooler and radiator to prevent further contamination, and flushed radiator/replaced coolant. also had transmission flushed/fluid changed. the vibration is still present, as i don't have $5000 + for a new transmission/radiator. *tr

My son was on his way to school when i received a call from him informing me that the pathfinder was running hot. i advised him to pull over and wait until i arrive. when i let the hood up, i saw foam-like substances coming from the radiator. i had the vehicle towed to a mechanic shop to have it checked out. he informed me that the radiator had burst and leaked into the transmission. he changed the radiator and informed me that the transmission would stop working soon. since than, i have changed the fluid 3 times @ $60.00 each time and the fluid is still pinkish. now my transmission vibrates between 40 and 50 mph *kb

Tl* the contact owns a 2007 nissan pathfinder. the contact was driving 40 mph and attempting to accelerate but the vehicle would not respond. the vehicle was towed to a dealer for inspection where the contact was advise that a cross contamination of fluids had occurred in the vehicle and the transmission would need replacing. the dealer also advised that the failure was a known issue with the make and model vehicle. the vehicle was not repaired. the failure and current mileage was 85,131.

A vibration occurs at about 1500 rpm. at the time my car had about 24000 miles on it. i took the car to a transmission shop and they told me my torque converter was going out. i took the car to a nissan dealer and they told me that there was something wrong but that they could not figure out what it was and therefore it was not covered under the power train warranty. it is now 54000 miles and the car would not go into reverse very easily. i again took it to a transmission shop and they told me the transmission oil was as black as motor oil. they said the transmission needed to be replaced. i then took it to the dealer and, same story, they said it needed to be replaced but it is out of warranty by three months. they again said there was something wrong with the transmission but they could not determine what it was. even though i made the complaint almost two years ago, they told me it was not covered by the powertrain warranty as the vehicle is now out of warranty. there is quite a litany of complaints on the internet about transmission failures from nissan products. i am obviously quite upset and dissatisfied. i will never buy another nissan product. *tr

2007 nissan pathfinder radiator defect causing leak of coolant into transmission fluid and resulting in transmission/radiator complete damage, undetected by dealer service for 30,000 miles. problem detected with opening of investigation. nissan requires co-pay of $2,500 even though complaints occurred previous to 80k miles and when problem detected, was 414 miles over requiring a significant amount of money for a known defect. *tr

Tl* the contact owns a 2007 nissan pathfinder. the contact stated that while driving approximately 45 mph, the transmission began to jerk with hesitation. the contact was able to continue driving. the vehicle was taken to a transmission shop for diagnosis, where the technician stated that radiator fluid leaked into the transmission which contributed to the failure. also, the vehicle was taken to an authorized dealer, where they informed the contact that the transmission would need to be replaced. the vehicle had not been repaired. the manufacturer was made aware of the failure and was unable to provide assistance. the approximate failure mileage was 80,000.

Start having problems in mid july of 2010. transmission was jerking in gear. radiator broke down, allowing fluid to leak into the transmission. vehicle is inoperable. also been having problem with fuel gauge. unable to get vehicle repaired, due to limited income. vehicle became inoperable passed extended warranty. *tr

Radiator recall for trans lines leaking into radiator contaminating coolant. and now the timing chain tensioner is causing a loud knock in the engine from the timing chain.

Tl* the contact owns 2007 nissan pathfinder. the contact stated while driving, the vehicle was vibrating. he also mentioned that when he applied the accelerator pedal it would not engage immediately. the vehicle was taken to a local mechanic who diagnosed that the controller at the bottom of the radiator malfunctioned causing the transmission and coolant fluids to mix, as a result the radiator and transmission needed to be replaced. the manufacturer was made aware of the failure but did not offer any assistance since the warranty had expired. the vehicle was not repaired. the failure mileage was 86,000 and the current mileage was 86,992.

Tl* the contact owns a 2007 nissan pathfinder. the contact stated the vehicle would violently jerk and exhibited transmission failure. the dealer advised that the radiator fluid was leaking into the transmission fluid, causing the failure. the manufacturer advised there were no similar complaints for her year, make and model vehicle and would not assist. the contact was awaiting repairs to the radiator, at his expense. the vin was not available. the failure and current mileages were approximately 118,000.

When driving home on the freeway doing about 60 mph our vehicle suddenly slowed down when i was about 3 or 4 miles from home around 8:40 pm. i stopped on the side of the freeway. the engine sounded ok but the car did not want to go very fast. since i had no phone and i am handicapped and unable to walk very far and had a lot of perishable food to carry and my wife and 9 year old daughter. i tried to drive home since we don't have another vehicle. i barely made it to the driveway where the car sits until i can get a loan to fix or buy another car. i only have 145,000 miles on the car, i usually get 300 to 400 thousand miles before i get rid of them.. i was never notified of a recall and i bought the vehicle new from a dealership. i am pretty sure it's the transmission but until i get funds i cannot put it in the shop or replace it.this is friday the day after the breakdown.

Radiator leaking into the transmission causing transmission damage, requiring a new radiator and transmission. nissan knows this is an issue and has not notified customers to fix this prior to the part failing to prevent major damage. they extended the warranty to 85k miles for that part, but it needs to fail for them to cover the repair. i could have replaced the part for around $400 preventing the damage to the transmission, if nissan would have told its customers. now i have had to replace the transmission for $4000 and rent a car for one month at $800. the damage occurred when i was driving. fortunately i was not on a busy highway when the transmission failed. it took so long to fix the transmission because parts are on back order to repair the transmission. *tr

Vehicle would not start. after examining what may be the problem it was found that the engine coolant and transmission fluid had mixed due to a defective oil cooler inside the radiator that caused the valve body in the transmission to fail that controls starting and transmission shifts. vehicle was towed by transmission shop for a compete overhaul including a new valve body. cost of repairs total was 3074.00 dollars. transmission shop installed an external transmission cooler and stated they were having to make these repairs on a number of these nissans for this defect. *tr