F-150buyer's guide

The 6R80 transmission shudder on this generation is the fault that catches most buyers out — fluid neglect kills the torque converter and you're looking at $900–$5,500 to fix. This guide walks you through the cold-and-warm road test sequence that surfaces it in ten minutes, plus nine other faults specific to the Gen 12 F-150.

This guide covers ten documented issues: 6R80 transmission shudder and delayed engagement, 5.0 Coyote and 3.5 EcoBoost oil consumption / lifter / timing chain wear, 4WD transfer case and front differential noise, frame rust and accident-repair patterns, cooling system leaks (water pump, thermostat, plastic crossover), suspension and steering wear (ball joints, hub bearings, tie rods), brake pulsation and seized caliper sliders, electrical module and camera faults, tow-package wear (hitch, wiring, brake controller), and the recall and campaign status checklist. Each one has a check you can do at the viewing and a real repair-cost range.

A clean Gen 12 F-150 is one of the best-value trucks on the used market. A neglected one is a five-figure mistake. This guide tells you which one is in front of you.