Toyota Uses Acoustic “Plastic Hammer” Diagnostic Tool To Solve Massive V6 Engine Recall

Summary Toyota has introduced a "V35A Crank Bearing Inspection" for its recalled 3.4-liter twin-turbo V-6 engines that involves striking the crankshaft pulley with a custom plastic hammer.Technicians attach an accelerometer to measure resonant frequencies and identify internal bearing damage from manufacturing debris without requiring a full engine teardown. Toyota engineers have devised an…