One of the most common failures, across all Toyota and Lexus models, starts with a concern over a growling, grinding or rubbing noise out of the engine when the engine is running. The cause is almost always the water pump pulley bearing failing, digging into the bearing race, and allowing coolant to leak out […]
One of the most common concerns we’re asked to address here at CARspec is a growling, humming, or grinding noise that gets worse with speed. The guest often notes that the noise changes going a particular direction.
The most common cause of this concern is a failing wheel bearing, although a proper diagnosis is required in […]
CARspec has been seeing increased complaints of whining noises from GX470 and V8-powered 4Runner owners, specifically from the engine. This is often followed by the battery light illuminating and the vehicle stalling during operation. The cause has almost universally proven to be a failing alternator.
Originally we were, if the alternator was the cause of […]