After reading all this reviews I decided not to wait and / or pay a lot of $$ to get this fix, so what we came up with is totally different cost effective and it works great, I know that this is a problem with the Nissan design but I bought it so now is my problem here goes, we cancel the lines that go thru the radiator and put an independent oil cooler to the side of the radiator with this little gadget you can be sure that you will never ever have this problem again and the transmission oil will be more cooler with this modification so the tranny will work better, cost to do this = 60 buck for the oil cooler, 15 buck to add transmission oil to the oil cooler and that's it well + what you
Biggest preventative action and we'll worth the few dollars, add a separate transmission cooler and cut the transmission oil flow from the radiator. The truck comes with a small transmission oil cooler on the front of the radiator but I added another when I separated the transmission oil from going through the radiator, a aluminum Trans cooler that mounts on the front of the radiator costs around $40.00 plus around $70.00 to install, super preventative transmission saver, the radiators failed from Nissans supplier so do not trust the current replacement as it can be a $4,500 expense. For around $100.00 you can gaurentee that the famous antifreeze mixing with the transmission never will happen to you.
Got my pathfinder back in 05, never had any problems with the the truck. Its been to texas and back many times. Like couple years back when we got that horrible winter storm here in chicago it handle the road like nothing. The best suv out there for the heavy snow. RWD with the 4x4 option. all i got to say its that its the best and knkw that its 10 years old still runs like new.
This is a known issue with Nissan 2005 and 2006 vehicles. (Currently the subject of a class action lawsuit.) Coolant leaking into Transmission destroys transmission, computer controlling transmission and radiator. Average cost for fix is ~$7,500 warranty extension offered by Nissan doesn't cover many drivers as the issue seems to often extend beyond the extended warranty of 8yrs / 130,000km. Some vehicles are not covered despite being within these two parameters. Nissan refuses to say why some vehicles of that year/type are excluded.
Step 1 - Have your transmission cooling lines disconnected from the radiator! There is an external auxiliary transmission cooler that does the job already. The only problem you may encounter is hard shifting in extreme cold. You can, if you want put another auxiliary cooler on the truck, but unless you're maxing the towing capacity every day you will not need it. The stock cooler is very large. Step 2 - You've basically now cured the only problem you will ever encounter, except for some little maintenancy things. Enjoy!