chrisb 
2005 Nissan Xterra SUV S 4WD 4dr SUV (4.0L 6cyl 5A)
Transmission Failures
 2005 Nissan Xterras and Pathfinders have a known and fairly widespread problem with radiator failures. When the radiator fails, it dumps engine coolant (antifreeze) into the transmission. This of course ruins the transmission. Total repair cost is over $5,000. Nissan has not issued a service bulletin on this problem and according to senior person in "Consumer Relations" he had never heard of this problem before.