Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.

3.0

definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
45,908 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 engine problems

engine problem

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2001 Toyota Sienna Owner Comments

problem #10

Nov 272009

Sienna 4-cyl

  • 105,000 miles

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

The engine failed and had to be replaced at a cost of $5,000 due to oil sludge buildup. Traveling on I-4 from tampa to orlando the check engine light appeared then we heard a tapping from the engine, . I pulled off the road and aaa towed the vehicle and a rental car company picked us up. I had two elderly passengers (in their 80's) with walkers who had to traverse the grass along the interstate to get to the rental car and were nearly blown over by passing trucks. Toyota refused to honor a claim for repairs although they had agreed in a recent Louisiana lawsuit to cover said repairs for 8 years from date of purchase. My failure was 8 years and 10 months from purchase. The sludge took much longer than 8 months to build up but Toyota refused to honor their stated commitment to assist all affected by oil sludge damage (over 3,000 complaints). Their product was defective and dangerous and their denial to assist was dishonorable.

- Winetr Springs, FL, USA

problem #9

Nov 272009

Sienna

  • 105,000 miles
The contact owns a 2001 Toyota Sienna. While the contact was driving 65 mph he noticed that the check engine light appeared on the dashboard, moments later the contact heard a knocking sound. The vehicle was taken to the dealership where the contact was informed that the engine needed to be replaced due to excessive engine sludge. There were no prior warnings. The current and failure mileages were 105,000.

- Winter Springs, FL, USA

problem #8

Oct 112008

Sienna

  • 100,081 miles
Engine oil light came on, then check engine light came on, engine shut off, no oil present in engine.

- Stone Mountain, GA, USA

problem #7

Nov 052005

Sienna 6-cyl

  • Automatic transmission
  • 82,000 miles

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

The engine of my Toyota Sienna 2001 with an identified oil sludge problem seized while driving at highway speeds. Vehicle could not be controlled and my toddler threw up in fear as we tried to avoid being smashed into while the car coasted to a stop. Mechanic repeatedly said cam seized, metal filings found, and "could not think of any other reason but the sludge problem." Toyota refused to repair the vehicle under unlimited mileage, 8-year warranty. Car is presently with dealer and may be examined by engineers from NHTSA (dealer agreed on 12/22/05). This failure was predicted by another dealer. Car always smoked--blamed on "new engine break in", "lack of maintenance", etc. Later Toyota sent letter about the issue. This time dealer agrees maintenance was excellent.

- Bethesda, MD, USA

problem #6

Dec 192003

Sienna

  • miles
Engine check light came on while driving. Took to dealer, had to replace vacuum switch. 2 days later, same problem occurred.

- San Jose, CA, USA

problem #5

Jun 022003

Sienna

  • miles
The vehicle experienced an oil leaked.

- Gainesville, FL, USA

problem #4

Jun 052003

(reported on)

Sienna

  • Automatic transmission
  • 17,000 miles

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

The engine had to be replaced due to an oil sludge build-up.

- Gainesville, FL, USA

problem #3

Mar 192003

(reported on)

Sienna

  • miles
Defective engine due to manufacturing defect.

- Henderson, KY, USA

problem #2

Nov 152001

Sienna 6-cyl

  • Automatic transmission
  • 50,000 miles
Initially oil leak after oil change. Was told that transmission pan was leaking and paid for replacement. Transmission fluid then started leaking. Returned vehicle to dealer; transmission pan was tightened. Noticed fluid still leaking; returned vehicle to dealership. Dealership could not detect source of fluid leak; placed die in oil and transmission fluids; asked to return vehicle in a few weeks. Returned vehicle to dealership; was told there was a leak surrounding engine seal and seal would need to be repaired.

- Fayetteville, GA, USA

problem #1

Oct 012001

Sienna

  • Automatic transmission
  • miles
Consumer took vehicle for a oil change to dealership. Mechanic dicovered a oil leak underneath vehicle oil pan gasket and a leaking bolt and seal. Engine needs a seal replacements. Also, there is a transmission leak. Front brakes are grinding metal to metal. Dealership is aware of the problems.

- Carlsbad, CA, USA

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