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4.7

definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
22,375 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.

2004 Toyota Sienna fuel system problems

fuel system problem

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2004 Toyota Sienna Owner Comments

problem #4

Dec 312024

Sienna

  • miles

A D V E R T I S E M E N T S

Was driving on highway at 60-65 mph. The car continued to accelerate. Pressed on brake and wasn't slowing the vehicle. The driver was weaving in and out of cars as the van started to creek up to 92 mph. The driver and passengers thought they were going to crash and possible die. The driver tried the brake multiple times and nothing. The driver said the accelerator pedal wasn't pressed all the way down to the floor. It was half way and driver had to go down and pull up on the pedal while driving. The van then started to slow and driver was able to pull over to have the van evaluated. The throttle body was reached and cleaned of carbon because it said that this may have been part of the issue. Never has this van taken off like this. The throttle body cable wasnt loose or disconnected either. So far we havent been able to recreate but 3 people could have been killed.

- San Jose, CA, USA

problem #3

Jun 222021

Sienna

  • miles
Unknown

- Bakersfield, CA, USA

problem #2

May 252021

Sienna

  • miles
Drivers side seat belt broke and was replaced. Fuel sensor not replaced causes vehicle to hesitate at times at freeway speed

- Winnetka, CA, USA

problem #1

Jun 282014

Sienna

  • 89,500 miles
While exiting a parking lot, car stalled. Immediately, there was a smell of gas and gas was leaking on the ground. Car would not restart. When we got it repaired, the mechanic said he discovered the "fuel line quick connect" disconnected. He asked if we had any recent work done on the car and I replied no.

- Portland, OR, USA

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