Four problems related to other fuel system have been reported for the 2003 Toyota Tundra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Toyota Tundra based on all problems reported for the 2003 Tundra.
Frame rusted out causing gas tank to fall off truck while driving. Was sparking while trying to pull of to a safe spot on highway, tank was hanging on by the fuel line. Leaf spring also broke on truck do to rust. Cars were avoiding my truck on highway as sparks were coming from the gas tank shield scrapping the highway. Frame should have been replaced along with gas lines, and leaf springs during the recall in 2012 range. Toyota of york decided to just undercoat spray frame, prior to me purchasing truck from them. They never notified me (the consumer) of the recall that was current on truck.
I was driving down the road when the 'check engine' light came on. I took it to the dealer to see what the issue was and they stated it was a leak in the gas cap and that I didn't have cap tight enough. On the way home from the dealer the 'check engine' light came back on, so I took it back to the dealer. They stated that the fuel filler neck needed to be replaced and it's not covered under warranty.
Check engine light on. Code related to evaporation/fuel system. Checked the fuel cap, appears ok, reset light and returned on. Will replace fuel cap. Potentially fuel filler pipe as mentioned frequently on here.
Check engine light always on giving gas codes. After extensive research this is a common problem with 2003 Toyota Tundras. Mine has been on my truck for 3 years since I bought it, and I constantly need to get it reset, until I decide to pay to get it fixed.
| Other Fuel System problems | |
| Other Fuel System Tank Assembly problems | |
| Other Fuel System Tank Mounting problems | |
| Gas Tank Strap problems |