Moderator: volvite
MANIMAL wrote:So I'm familiar with the threat of cross-contamination from the Frontier forums. I have an '11 Frontier; so, I just dodged that bullet by one model year. I recently got an '08 V8 Pathfinder and perhaps erroneously assumed because I had not heard of the Titans or Armadas struggling with this issue, that my Pathfinder might be similarly exempt due to the different powerplant and radiator setup from its V6 brethren. I have come here to try to correct that assumption on my part. Is there a risk to the V8 pathfinders as well due to the factory radiators? I'll look into this more. Thanks for any advice that anyone can offer.
Thank you sir for the info. Will get this sorted ASAP.smj999smj wrote:Your mechanic is wrong. All Nissan trucks with automatic transmissions have a radiator with an integral transmission fluid cooler. You can see on the part diagram linked below the trans cooler hoses on the V8 R51 Pathfinder:
http://www.nissanpartsdeal.com/parts-li ... m=214_B001
So I just had my Pathfinder checked out by two other transmission guys and got told something very similar to my original mechanic.smj999smj wrote:Your mechanic is wrong. All Nissan trucks with automatic transmissions have a radiator with an integral transmission fluid cooler. You can see on the part diagram linked below the trans cooler hoses on the V8 R51 Pathfinder:
http://www.nissanpartsdeal.com/parts-li ... m=214_B001
And on the Titan:
http://www.nissanpartsdeal.com/parts-li ... m=214_A003
As far as the Titans/Armadas, they have a different radiator and do not have the cooler failure issues. What they have had is problems with the lower radiator tank cracking and leaking coolant externally.
Well, the exact thing the second transmission guy told me was that the radiator core was different, at least on 08+ V8 models. The pipping just didn't "break" like the V6 models prior to 08.smj999smj wrote:Is it that the V8 Pathfinders don't leak...or that there is such a small percentage of them compared to V6 models that we just don't hear about a lot of them failing? Also, the majority of failures are on 05-06 models, but there are still plenty that have failed on 07-10 models. I wouldn't be so confident that a V8 radiator "won't" fail since it is the same part as the V6 model. I'm not a big fan of the bypass, but did do it on my 08 Pathy for awhile until I got a great deal on a new radiator that was too hard to pass up. My recommendation would be to replace the radiator. They aren't that expensive and always better to be safe than sorry.
Just did some more "cold calling" and three places I called all said that even the V8s need the bypass.smj999smj wrote:Is it that the V8 Pathfinders don't leak...or that there is such a small percentage of them compared to V6 models that we just don't hear about a lot of them failing? Also, the majority of failures are on 05-06 models, but there are still plenty that have failed on 07-10 models. I wouldn't be so confident that a V8 radiator "won't" fail since it is the same part as the V6 model. I'm not a big fan of the bypass, but did do it on my 08 Pathy for awhile until I got a great deal on a new radiator that was too hard to pass up. My recommendation would be to replace the radiator. They aren't that expensive and always better to be safe than sorry.