Four problems related to sway bar have been reported for the 1999 Toyota 4Runner. The most recently reported issues are listed below.
The frame on driver side rear axle area has completed rotted from rust, the rear suspension and sway bar broke away from the vehicle. We were almost in a very serious accident as there was loss of control of the rear end and we ended up in a ditch with loss of control. We were driving in a straight line at the time. We could have had a serious roll over accident resulting in serious injury or death. Very scary incident. I did some online research and found a number of other complaints. I would be happy to send photos of this issue if you want to call e-mail me at jburget1263@gmail. Com. The exterior body engine and interior of this vehicle are in good condition and it seems the frame should last the life of the vehicle. Thank you for registering my complaint.
As I was driving down the interstate I crossed a bridge approach and rear end of vehicle started swaying all over the road. About caused a accident. The rear sway bar on passenger side separated from the frame and about caused an accident. The frame seems thin for a utility vehicle.
Tl- the contact owns a 1999 Toyota 4runner. The contact stated that while driving approximately 35 mph on a gravel road, the rear end of vehicle began to fish tail uncontrollably. The contact was able to regain control of the vehicle and continue driving. The contact noticed that the entire frame was completely rusted, which contributed to the sway bar bracket detachment. The vehicle was not repaired. The manufacturer was made aware of the problem. The approximate failure mileage was 167,000. The VIN was unavailable. Kmj.
March 6, 2011: 99 Toyota 4runner: I noticed my 4runner pictching on highway even at low speeds for several weeks. After I brought into Toyota they informed that the vehicle was extremely unsafe - rear end differential housing had become detached from frame on rear passanger side - right rear axle close to complete failure - Toyota stated it was too dangersous to drive. Severe rust on the structural and suspension components is excessive. Also large holes in differential housing causing fluid leakage. Toyota stated they could find used parts, including suspension bracket & entire replacement of differential housing & sway bar components - would cost up to $3000 to repair at my cost. Another option is to find a mechanic to weld & repair suspension brackets. The rear transfer case is so thin that oil is leaking through rust holes. Frame rails & entire undercarriage also severely rusted & deteriorated, including entire disintegration of the rear bumper with the front bumper having massive rust holes.