Some engines have had the problem of the crankshaft pulley bolt coming loose. This will make a rattling noise as the engine idles. Our technicians tell us that the pulley bolt should have a thread locker applied and then retorqued.
Car Problem Reports
Toyota Tacoma Crankshaft Pulley Bolt May Come Loose
Toyota Tacoma Problem
Engine Affected: 2.4L 4 Cylinder
Average Mileage: 93,500 mi (70,000 mi - 117,000 mi)
Visitor, 1997 Toyota Tacoma, 2.4L 4 Cylinder, 70,000 mi
Loss of charging and oil pressure, Both lights came on.