One problem related to tank mounting has been reported for the 2000 Toyota Tundra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 Toyota Tundra based on all problems reported for the 2000 Tundra.
I have a 2000 Toyota Tundra, access cab, 4wd truck with 160,000 +/- miles. I purchased the vehicle used from the original owner who lived in the akron, ohio area. I have noticed significant section loss to frame members, cross members and cab supports. Presently, the frame is completely perforated on the underneath side near the passenger front door. Additionally, the passenger middle cab support has corroded completely off, the front drivers cab support has rusted completely away and the front bumper/impact guard has completely rusted off. I have contacted the dealership and corporate headquarters two separate times. They have responded promptly all three times; however, the issue is still be investigated at the "executive level". Additionally, I have had to replace one of the rear brake lines and the fuel tank strap due to failure from corrosion. The vehicle is in excellent mechanical shape and body is nearly flawless. I have photos available. The frame seems to be most severely deteriorated at the boxed section near the transmission support cross member. Under normal driving conditions (I. E. Not towing/no payload) this would likely be the point in the structure associated with maximum bending. Due to the box design- it is impossible to inspect the total amount of section loss; although, as previously stated the passenger side rail is completely perforated along the underneath side. I can attest that my father has a 2002 Toyota Tundra with no deterioration. It is unclear if Toyota used a different treatment for the later model vehicles. Most alarming to me, is how quickly y the corrosion has progressed. Since last September, the corrosion has progressed from a surface rust appearance into bubbling and complete deterioration.