GM 6.2L V8 Investigation Escalates, Tundra Hammer Test and Super Duty Engine Changes

Send us Fan Mail NHTSA has escalated its investigation into GM’s 6.2-liter L87 V8, moving the case into an engineering analysis that could affect nearly one million Chevrolet, GMC and Cadillac trucks and SUVs. Tim Esterdahl explains what the expanded federal investigation means for GM owners and whether the current recall remedy is resolving the engine problems. This week’s truck news also covers Toyota technicians using a hammer test on recalled Tundra engines, Ford Super Duty engine changes...