1999 Toyota Sienna engine problems
40 complaints about engine have been filed for the 1999 Toyota Sienna, which is 16% of all its NHTSA complaints. It is the most reported problem area for this model year.
At a glance
- Complaints
- 40 16% of this year's complaints
- Typical mileage
- 79,000 miles 11 complaints with mileage
- Crashes and fires
- 0 and 1
- Injuries and deaths
- 0 and 0
Source: NHTSA owner complaints
When engine problems show up
View the numbers
| Mileage | Complaints |
|---|---|
| 0k to 20k miles | 0 |
| 20k to 40k miles | 0 |
| 40k to 60k miles | 2 |
| 60k to 80k miles | 4 |
| 80k to 100k miles | 1 |
| 100k to 120k miles | 2 |
| 120k to 140k miles | 2 |
| 140k to 160k miles | 0 |
| 160k to 180k miles | 0 |
| 180k to 200k miles | 0 |
| 200k+ miles | 0 |
What the data shows
Of the 11 engine complaints that report mileage, the median is about 79,000 miles, and 18% were reported before 60,000 miles.
These complaints mention 1 fire.
What owners wrote
Excessive sledge build up in engine which caused engine failure. Manufacturer notified, and refused to honor warranty. Feel free to provide any further details on this matter.
Waiting to hear from toyota on our oil sludge engine failure problem. We are gathering the oil change receipts and were 1st told we did not maintain the vehicle. Now seeing that we are not alone with this issue.
Other problems reported for the 1999 Toyota Sienna
- Body & structure 36 complaints
- Tires 29 complaints
- Steering 21 complaints
- Latches & locks 19 complaints
- Brakes 15 complaints