Transmission Gear Slipping problems of the 2005 Nissan Frontier

Transmission failure caused by mixing of radiator coolant with transmission fluid through cracks in coolant tubes. Transmission slippage, loss of power experienced on local trip, had vehicle towed to mechanic.

When truck gets warm first gear start slipping and hard to get the truck to move fluid levels are where they should be the vehicle was in motion at a drive-thru tobacco shop.

The contact owns a 2005 Nissan Frontier. The contact stated that the transmission slipped and the vehicle experienced abnormal vibration. Upon inspection, the contact noticed that the transmission fluid mixed with the radiator fluid. The vehicle was taken to the dealer where it was confirmed that the transmission fluid mixed with the radiator fluid and stated that the transmission needed to be replaced. The manufacturer was notified of the failure. The failure occurred without warning. The failure mileage was 81,000.

Transmission starts slipping at highway speed. Rpm increases without increase in speed. Intermittent but getting worse. This is my son's truck and I am worried about his safety when merging into the interstate. He almost got hit by a semi last week when merging into I-20 as the slipping was happening.

I own a 2005 Nissan Frontier. At about 84365 miles, the transmission started slipping badly. The mechanic said that my transmission cooler had ruptured inside the radiator and coolant had gotten inside the transmission. My transmission was basically destroyed and it cost over $5000. 00 to fix it. After reading other articles about Nissan owners with similar experiences, I think this is outrageous and Nissan should be held accountable for these failures.

While getting on the freeway, I accelerated to merge with traffic but was unable to gain speed so I got off on the first exit ramp. Had plenty of engine power but lost torque. First thought, must be the transmission slipping. Got home and checked the transmission oil level and it was fine, the oil did not look like transmission oil, it was discolored and had a different feel to it. Was able to get the truck to dealer and was told it needed a radiator and transmission. Coolant had leaked into the transmission. Did my research and found there have been many complaints about this problem. As for the warranty,by which I still have to pay over $2500, I believe Nissan should have had a recall on the 05 Frontier, pathfinder, and payed for the whole repair for their use of what I call defective parts. ( radiator & transmission cooler ).

I was driving along on a major interstate at 65 mph when my engine was revving up to about 3500 or 4000 rpm but my speed was dropping. I pulled over to the right hand side of the road, stopped and turned the vehicle off. Had I not been in the right lane of the major interstate when traffic was very light, I could have had a major accident. Everything seemed normal except the low coolant level in the reservoir bottle. There did not appear to be any problems with the engine so then I placed the truck into drive and moved the vehicle forward. As the vehicle picked up speed and at about the 35 to 40 mph the truck engine would rev up but the transmission was slipping and not allowing the truck to move any faster. When I took the screw off the transmission dipstick to see that that fluid level was too high for the proper level in the automatic transmission. Also, I noticed that the fluid had a greyish milky appearance which is a clear indication of contamination with a water based material such as engine coolant. I find the fact Nissan clearly knew that was a problem and failed to notify me as the original owner of the vehicle annoying. They would rather pay to have vehicle repaired after the fact than take care of a potential safety problem before it occurs. This is extremely troublesome when a manufacturer places profits and the bottom line ahead of customer safety. Upon further research, I have learned that I could have replaced the faulty radiator with another product from koyorad for about $120 retail and prevented this problem. So for a couple hundred dollars, Nissan is willing to jeopardize my safety and all other Nissan owners safety. As the national safety agency, I implore you act immediately and order a recall on these Nissan vehicles before people get hurt. It is your duty to protect the people of the nation from safety issues when manufacturers fail to do so.

Transmission slipped and loss power while driving down the highway. Dealership service department claims issue is a common complaint with this vehicle. Actually has an extended warranty because of it.

Apparently a known issue with the radiator leaking into the transmission - causing an $3000 repair to a vehicle that was well-maintained. The transmission started slipping and after diagnostics was told by the mechanic this was an issue that Nissan knew about and never did anything about. Spent $3000 of my money to fix something that should have been prevented and fixed by the manufacturer. I liked Nissan, but after this; I may not buy anymore. Have documentation to prove the issue.

My truck began displaying symptoms of catastrophic transmission failure. For example, gear slippage and shuddering as if rolling over rumble strips. I took it to a mechanic and they found the coolant had transformed into a thick pink substance. It was determined that a seal had failed in the radiator causing coolant to mix with the transmission fluid. This then baked inside the transmission. We replaced the radiator and so far have delayed the inevitable replacement of the transmission. I called local Nissan dealerships and they know about the problem but declined to offer significant information. I contacted Nissan and because of language barriers, etc. , they would not address my issue. I contacted the bbb and a Nissan representative eventually called me, but in the end disregarded my issues with mock concern. I contacted the mn attorney general and they said I might take them to small claims court. It seems that Nissan has concocted a warranty that only benefits people who experience the problem at a very premature stage.

My transmission is slipping. I have been told by a dealer I have radiator fluid in my transmission fluid. Apparently, this is a known problem with certain model year Nissan vehicles, due to a break in a transmission line that runs through the radiator. Please force Nissan to recall and repair this issue!!!.

Tl-the contact owns a 2005 Nissan Frontier. The contact was driving approximately 30 mph when the transmission began to slip gears with hesitation. The failure recurred whenever the vehicle was in operation. The vehicle was taken to an authorized dealer and an independent mechanic for diagnosis, in which both advised the contact that the transmission would need to be replaced. The vehicle was not repaired. The manufacturer was notified of the defect. The failure mileage and VIN was unavailable. Kmj.

The contact owns a 2005 Nissan Frontier se. The contact stated that while driving 40 mph, the radiator ruptured. The transmission also began slipping. The vehicle was taken to an authorized dealer who stated that the radiator and transmission needed to e replaced as the antifreeze mixed with the transmission fluid. The contact called the manufacturer who offered no assistance. The failure mileage was 82,000.

3/10/08-transmission is slipping and clunking, took to dealer-turn away, 59994 miles. 4/21/08-62,597 miles returned to dealer and again was told no problem. That day took to local mechanic and he drained transmission fluid. Resembled a milk shake and he diagnosed the problem as a broken transmission line in the radiator. Returned to dealership and they once again turned me away refusing to acknowledge the problem. Local mechanic flushed transmission and repaired radiator. Transmission still slips and clunks and is presently parked. (not drivable) received a letter from Nissan admitting to this very problem and they still rejected my request for repairs. Believe engine may have been damaged as a result of this problem. Burns oil and stalls as well. Made many requests to national consumer affairs and totally rejected my concerns.