Front Suspension Wheel Bearing Problems of Toyota 4Runner

Our 2004 Toyota forerunner with v6 engine was purchased as a used vehicle in 2019 with 106,000 miles on it. Since then, it has developed more and more areas of rust on the frame despite our efforts to mitigate this issue. We have had to repair the frame, suspension, brakes, and wheel bearings. We continuously inspect the undercarriage and continue to discover more and more areas of significant rust/deterioration despite efforts to clean, treat (with paint, rust inhibitors, welding repairs). We are concerned that this deterioration will soon result in a catastrophic failure and possible accident resulting in property damage, injury, or death.

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Frame and undercarriage rust. Rotted bolts affecting ability to have complete alignment performed. Failed wheel bearings causing loud rotational friction sounds while in motion. Rusted exhaust system causing failure and required replacement.

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When getting the left/rear wheel bearing repaired (due to heavy rusting of the differential housing, causing fluid loss), the technician reported extensive frame loss also due to corrosion. Affected vehicle (otherwise in good condition) was/had to be junked for safety reasons, thus forcing me to purchase a new vehicle sooner than anticipated. In n. E. (north east) USA, Toyota tacomas (frames manufactured in the USA) were recalled for this condition but not Toyota 4runners (frames manufactured in japan). Both my 4runner corrosion conditions are not unusual in n. E. Usa! (photos available upon request). Should Toyota be allowed to continue doing nothing about this dangerous condition?.

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The contact owns a 1998 Toyota 4runner. Whenever the contact parked the vehicle, he noticed oil dripping from the rear of the vehicle. The vehicle was taken to a local auto shop and the contact was informed that the rear wheel hub needed to be replaced. The current and failure mileages were 117,000.

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Front wheel bearing locked up. Vehicle was taken to the dealer, and dealer was not able to duplicate the problem.

See all problems of the 2001 Toyota 4Runner 🔎.