Table 1 shows ten common power train related problems of the 1999 Toyota 4Runner. The number one most common problem is related to the differential unit (five problems). The second most common problem is related to the power train (five problems).
My truck was being driven on a long trip. The differential starting making a whining noise that got louder and louder. I stopped at an oil change place at my destination to have them check the fluid. It was almost empty. Topped it up and chanced driving it 400 miles back to chicago. Read details...
Passenger frame showing signs of rust thru of frame in front of passenger rear wheel about a 3 inch long hole Read details...
Rear brake failure due to leaking rear axle grease seals which throw grease onto rear brake shoes. Causing inconsistent and unsafe braking. According to Toyota of auburn California, repairs similar to this are being performed on similar vintage Toyota four runner models on a weekly basis. Read details...