The automatic transmission would not change gear properly. It is slow in changing gear and the "check engine light" blinks.

- Pohnpei, FM, USA

I own a 2007 Nissan Frontier le crew cab 4X4 and I have owned since it has had 72,000 miles on it. Last Monday while driving to work my truck shut off in the middle of hwy 53 and locked up the steering and almost took my life. Due to the fact Nissan has ignored their radiators are faulty leaking into the transmission, I am left with my truck sitting in the yard. I am a 22 year old male with 2 jobs and a full time student without a way to continue to purse my dream of becoming a physical therapist.

- Cumming, GA, USA

Noise from front of engine when starting or while running. Have replaced all serpentine belt system parts problem persists. I have now parked the vehicle as problem is worse, and do not want to ruin the engine. Mileage 46450.

- San Pedro, CA, USA

My truck stopped in the middle of the freeway and when it was taken tothe mechanic it was collant in the transmission. Not onky do ineed to replace the transmission but also the radiator. There wereno signs of this issue or any warnings.

- Chino Hills, CA, USA

When entering hwy 17 (70 mph speed limit) I pressed the gas pedal to the floor to enter oncoming traffic. Instead of increasing speed the truck stalled. I pulled onto the right side emergency lane in order to prevent traffic from running over my vehicle. I placed the transmission in park and it seemed to smooth out. Motor was running with excess RPM's and transmission was slipping. This was a near accident. I could hear cars behind placing on brakes and blowing horn. When returning home was told by Nissan dealership radiator cooler and transmission had to be replaced due to faulty lines. Nissan should have recalled this problem.

- Salisbury, NC, USA

There is a high frequency buzzing / whining noise coming from the secondary timing chain system. This has started to happen on a 2007 Nissan Frontier VQ40 4.0L V6 engine. The noise increases in frequency with engine speed (RPM). Attached is the service bulletin. Service bulletin reference: Ntb09-128 classification: EM09-007 date: November 16, 2009

- Newburg, PA, USA

While in the freeway, speed slowed down to 25 mph. Got out of the freeway and opened hood. Found out radiator coolant low and some white stuff I could see. Right then it came to my mind that I have the Nissan famous radiator coolant leaking into transmission and would not think it would happen to my truck at 38000 miles. Transmission had milky like fluid. Why is there no safety recall when so many cars are affected that put a lot of people on danger. Instead I got the extended warranty of radiator. The dealer could have replaced the radiator 5 years ago. Nissan is aware of the problem for years.

- Mesa, AZ, USA

Took my Nissan Frontier to pacific Nissan in san diego for a consistent jerk/knock with sound of liquid gurgling. Notified that I was lucky that the truck made it to the shop. Notified that there is a fluid intermix between my coolant and transmission fluids. How can that be when they are two totally different systems" Nissan is offering that I pay the deductible of 3000$ to get it fixed. I just found out that this is a known issue for all Frontiers, xterras and pathfinders and Nissan is not being pro-active in issuing repairs prior to this problem happening and sticking the consumers with the cost to repair the vehicle. How can this be allowed to happen"

- San Diego, CA, USA

Transmission failed due to coolant intermixing with transmission fluid. This is the second time this vehicle has had catastrophic transmission failure due to a crack in the cooling system. First time was just over the warranty so I was forced to pay a $2500 copay. The vihicle started showing signs of a secondary failure just prior to 100000 miles and when I brought it to the dealer they lied to me and said there was just residual oil in the radiator from the first failure... now I am past any warranty copay and the transmission is failing at just 100500 miles. That is just two years (less than 18000 miles) after they replaced the radiator and transmission. This is unacceptable that consumers are being forced to pay for a known issue of poor engineering especially when it was supposedly fixed by the dealer with Nissan parts. They have obviously not fixed the problem but just replaced with another defective part. On top of that they denied there was a problem to so I would continue to drive the vehicle until it was past the extended warranty (from 2012 class action lawsuit). While there was no accident in either indecent there was a near collision the first time as I was in the middle of a busy intersection and the second there was traffic behind me that had to avoid rear-ending me as the vehicle stopped, this is a dangerous defect that could result in injury or death.

- Ballston Lake, NY, USA

Entering 4 lane highway with 70 mph traffic. Kicked Frontier into passing gear to enter ongoing traffic. Frontier stalled and slowed instead of increasing speed. Transmission slippage and jerking caused motor to increase rpms. I had to move my truck over to right of paved lane and onto pulloff area in order to prevent accident. I was told at the Nissan dealership that I had transmission damage due to radiator fluid leaking into transmission. It cost me $2500 to repair a problem that could have cost lives. I understand this was a problem that was not recalled by Nissan.

- Salisbury, NC, USA

About 3 weeks ago my truck was not shifting correctly I take to the dealer and they found a code P0717 for a turbine revolution sensor. They found there to be water being pumped into the transmission. Apparently the radiator leaks water into the transmission.

- Lawrenceville, GA, USA

Was told the timing chain and tensioners need to be replaced found out this is a very common problem with Nissan and they will do nothing to remedy the situation

- Omaha, NE, USA

Timing chain guides, tensioners, guides, shoes and seals, witch made noise the whole time I had the truck and the dealer never said anything until after my warranty expired.

- Hesperia, CA, USA

Timing chain, guide and tensioner must be replaced

- Londonderry, NH, USA

The contact owns a 2007 Nissan Frontier. While driving at various speeds the vehicle would hesitate to shift gears. After examining the vehicle, the contact discovered that transmission fluid was present in the radiator coolant. The cause of the failure was not diagnosed or repaired. The manufacturer was not notified. The VIN was not available. The failure mileage was 80,000.

- Alexandria, AR, USA

Radiator repaired as leakage from crack causes transmission to go bad, known by Nissan according to service dept

- Upland, CA, USA

Transmission failure. Driving on freeway vehicle wouldn't shift into gear. I was stuck and on my way home in heavy traffic. Truck started shaking. Took it to aamco on 5/2/15. Cost me over $3770. On 9/6/15 took first trip to the mountains, again my transmission goes out. This time we're in the mountains going up hill when my truck won't shift into gear. Once again I have to have my truck fixed. I don't own a bank and I need my truck to work. What the hell am I going to do to make a living" what is Nissan waiting for someone or a family getting killed??"

- Altadena, CA, USA

The radiator fluid leaked into the transmission and ruined the transmission. I understand that this is a known problem by Nissan and they never notified us. If we had been told about the problem before the radiator leak we would have fixed it and would never have had to replace the transmission. We contacted Nissan Consumer Affairs and they refused to help pay for this so we were stuck with paying over $5000 for a new transmission.

- Jacksonville, FL, USA

A couple of months ago, I began to notice a loud vibrating or shuddering sound at speeds around 35-40 mph. It seemed to happen as I stopped accelerating as if it were trying to up-shift for cruising. The sound began to get louder over the next few weeks before I could get it checked out. It now has a very difficult time shifting at those speeds and when it does shift, it's hard and makes a loud knock sound. It then began to run hot one day so after it cooled I check the coolant level and found that it had a light brown, milky looking substance which felt oily. I've recently discovered a lot of information from people with the same problem explaining that it is cause by the coolant and transmission fluid mixing and damaging each component.

- Conway, SC, USA

The radiator fluid leaked into the transmission and ruined the transmission. I understand that this is a known problem by Nissan and they never notified us. If we had been told about the problem before the radiator leak we would have fixed it and would never have had to replace the transmission. We contacted Nissan Consumer Affairs and they refused to help pay for this so we were stuck with paying over $5000 for a new transmission.

- Oceanside, CA, USA