Two problems related to engine grinding noise have been reported for the 1999 Toyota 4Runner. The most recently reported issues are listed below.
Went to get and oil change, when my car was returned the car started to vibrate very time I was at a stop sign, then the check engine light came over 12-13 times all with different codes. . . My car keeps stalling and restarting. . . The brakes is making a grinding sound just got the brakes done. . . Fuel injection cleaning . . . And the right rear light keeps malfunctioning even after I've change the bulbs on several times. . .
I was driving my 1999 Toyota 4-runner, down the road when all of a sudden I heard a grinding noise, instantly the engine started to shake and then loud grinding noise, the car quit and oil everywhere. I had thrown a rod. No warning at all. Service maintenance maintained. No reason for the engine to blow!.