RE5R05A Transmission Repair for Frontier, Xterra, Pathfinder, Armada, Titan, and Infiniti Models
Nissan five-speed automatic diagnosis for valve-body codes, radiator contamination, towing heat, and slipping

RE5R05A Transmission Repair for Frontier, Xterra, Pathfinder, Armada, Titan, And Infiniti Models

The RE5R05A is a Nissan five-speed automatic, so the repair decision depends on use, mileage, fluid history, and whether the issue is still isolated or already internal.

Frontier, Xterra, Pathfinder, Titan, and Armada owners also need radiator-contamination history checked because it can change the entire estimate.

We check codes, fluid contamination signs, valve-body behavior, converter feel, cooler routing, leaks, mounts, wiring, and towing heat.

How We Narrow Down the Repair

1. Confirm Nissan or Infiniti application, mileage, towing use, radiator history, codes, and fluid service.
2. Check fluid for contamination, scan data for valve-body and ratio clues, and inspect cooler/radiator routing.
3. Road-test when safe to reproduce harsh shifts, shudder, hot slip, delayed engagement, or towing-related behavior.
4. Compare valve-body work, cooler/radiator correction, converter diagnosis, rebuild, replacement, and warranty options.

If radiator contamination is involved, the RE5R05A estimate must account for the whole system, not just the transmission. If it is valve-body related, we show that separately.