hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
72,356 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2001 Toyota Sienna fuel system problems

fuel system problem

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2001 Toyota Sienna Owner Comments

problem #3

Jan 092012


  • 102,542 miles


The contact owns a 2001 Toyota Sienna. The contact stated that the vehicle emitted a strong gasoline fuel odor while driving. The vehicle was taken to the dealer for inspection where the contact was advised that the odor was due to a faulty fuel canister and cap. The dealer replaced the fuel canister and cap but the failure was not corrected. The vehicle was taken back to the dealer where the failure was located at the fuel pipe assembly lines. The fuel pipe assembly lines were replaced twice to correct the failure. The manufacturer denied assistance with the repair, due the vehicle mileage. The failure mileage was 102,542 and the current mileage was 103,515.

- Jacksonville , FL, USA

problem #2

Oct 272005

Sienna 6-cyl

  • Automatic transmission
  • 54,525 miles
At 54,525 miles, the check engine light came on. It was diagnosed as "replace air/fuel sensor B1 S1." Failure caused excessive damage because the sensor fused into the rear exhaust manifold. Diagnostic testing $ $49 sensor replacement part $227.52 " " labor $150 rear exhaust manifold $154.21 rear exhaust manifold gasket $29.27 repair was not done at a Toyota dealership. I am reporting this so that Toyota will change the design. Failed part should not damage surrounding structures. Suggest recall on this part if Toyota continues to use this design.

- Fairfax, VA, USA

problem #1

Jun 282005

Sienna 6-cyl

  • Automatic transmission
  • 60,000 miles
The contact owns a 2001 Toyota Sienna. The fuel air sensor failed. Also, fuel sensor failed in contact's son's 2001 Toyota highlander which had the same mileage. Called Toyota, and they said there were no recalls. Had both parts replaced, $282 each. Now the ignition has failed.

- Jessup, MD, USA

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