by gowen1 on Jan 14, 2014 Vehicle: 2005 Nissan Pathfinder SE 4WD 4dr SUV (4.0L 6cyl 5A)
I recently bought a 2005 Pathfinder at a mileage of 110k. After reading scary stories about radiator coolant mixing with trans oil, I decided to take a preemptive measure as suggested, i.e. disconnect coolant line from the radiator and add an external transmission cooler.
I took my vehicle to Volksdoctor. David, the owner, is very nice man.
When he was trying to find a spot for external cooler installation, he found there is a small cooler in the front of the radiator. Then he checked VIN online and found this vehicle has a separate trans cooler. I was so happy about it.
Thus, check your vehicle before you add one, you might have it separated already.
by pfluvr on Aug 28, 2013 Vehicle: 2005 Nissan Pathfinder SE 4WD 4dr SUV (4.0L 6cyl 5A)
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!
by kano1017 on Jan 30, 2013 Vehicle: 2005 Nissan Pathfinder LE Rwd 4dr SUV (4.0L 6cyl 5A)
I got my Path used 3 years ago it's a 2005, I'm very happy with it then I started reading the reviews and got concern I know that this is a Nissan design issues but I was not going to wait till I have to pay a lot of $$ to get the radiator and tranny
fix so my friend and me started looking for some options and we found the solution so we cancel the lines that go thru the radiator to cool the tranny oil and put an independent oil cooler so now I will never need to be concern on this issue, cost to do this 70 buck's for the oil cooler + what you mechanic charges you. Good luck