Toyota Sienna Engine and Engine Cooling Problems
Owners have filed 293 complaints with NHTSA about engine and engine cooling problems on the Toyota Sienna across 16 model years. The 2000 model year has the most (66). The words owners use most often: “oil changes” (9% of reports).
- 293engine and engine cooling complaints
- —median miles at failure
- 4mention a crash
- 4mention an injury
- 1related recalls
- $9,300typical repair cost reported by owners
- 39%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Oil changes: mentioned in 26 of 293 complaints (9%)
- Sludge build: mentioned in 19 of 293 complaints (6%)
How much does it cost to fix?
Owners who wrote down what they paid or were quoted put the typical engine and engine cooling repair on the Toyota Sienna at $9,300, and half of them between $4,150 and $11,800.
Based on 32 NHTSA complaints about this problem alone that state a repair bill or quote (2000–2010), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.
At what mileage do engine and engine cooling problems happen?
Based on 166 complaints that reported the odometer reading.
How serious are the reports?
Of 293 complaints, 4 mention a crash, 9 a fire, 4 an injury.
Toyota Sienna engine and engine cooling complaints by model year
| Model year | Engine and Engine Cooling complaints | Share of that year | Median miles |
|---|---|---|---|
| 2013 Sienna | 1 | 1% | 50 |
| 2012 Sienna | 1 | 0% | 1,500 |
| 2011 Sienna | 6 | 1% | 6,800 |
| 2010 Sienna | 4 | 2% | 3,750 |
| 2009 Sienna | 4 | 2% | 37,000 |
| 2008 Sienna | 12 | 3% | 35,550 |
| 2007 Sienna | 14 | 4% | 26,159 |
| 2006 Sienna | 4 | 0% | 62,425 |
| 2005 Sienna | 17 | 2% | 60,500 |
| 2004 Sienna | 46 | 2% | 53,000 |
| 2003 Sienna | 6 | 6% | 66,500 |
| 2002 Sienna | 16 | 9% | 40,000 |
| 2001 Sienna | 24 | 13% | 54,763 |
| 2000 Sienna | 66 | 18% | 78,000 |
| 1999 Sienna | 39 | 18% | 79,000 |
| 1998 Sienna | 33 | 11% | 75,000 |
When owners reported it
Related recalls (1)
Engine and engine cooling
Model years: 2004, 2005
Problem: Toyota is recalling certain model year 2004 avalon vehicles; 2004 and 2005 camry, camry solara, highlander, and sienna vehicles, 2006 highlander hybrid; 2004 and 2005 lexus es330 and rx330; and 2006 lexus rx400h vehicles manufactured from june 1, 2004 through march 31, 2005, equipped with the 1mz-fe or 3mz-fe engine. The amount of adhesive agent applied between the outer ring and the torsional rubber damper (inner ring) in the crankshaft pulley may be inadequate. If the adhesive is insufficient, there is a possibility that the outer ring may become misaligned and it may not properly rotate with the inner ring, causing noise and/or illumination of the battery discharge indicator light.
Risk: In some cases, the belt for the power steering pump may become detached from the pulley which could result in a loss of power steering and a sudden increase in steering effort, increasing the risk of a crash.
Fix: Toyota will notify owners, and dealers will check the crankshaft pulley to identify whether it was produced by the u.s. Supplier. If so, the dealer will replace the pulley with a new one at no charge. The safety recall is expected to begin during early january 2012. Owners may contact toyota at 1-800-331-4331.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
The contact owns a 2007 Toyota Sienna. While the contactâs wife was pulling into the parking space, the transmission shifter was shifted into park(P), and the vehicle suddenly rolled forward approximately four feet. The parking brake was activated, preventing the vehicle from crashing into a…
The contact's mother owns a 2004 Toyota Sienna. While the contact's mother was driving at an undisclosed speed, several unknown warning lights illuminated. The contact stated that the warning lights illuminated on and off for days and months. The vehicle was taken to an independent mechanic where…
The contact owns a 2005 Toyota Sienna. The contact stated while driving 65 MPH, the oil warning light illuminated. The contact pulled over, opened the hood, and added additional oil. The vehicle was towed to an independent mechanic, who informed him that the engine needed to be replaced. The…
Tl* the contact owns a 2004 toyota sienna. While driving approximately 55 mph, the contact heard a loud noise and lost steering control. The vehicle was pulled over to the side of the road and towed to the contact's residence. The vehicle was later taken to an independent mechanic where it was…
2008 toyota sienna. Consumer writes in regards to vehicle engine problems. *smd the consumer stated the air condition was not cooling the vehicle, and she thought it just needed to be serviced. After two hours of driving, the check engine light illuminated. By the time she was able to pull over…
Frequently asked questions
Do all Toyota Siennas have engine and engine cooling problems?
No. NHTSA has 293 owner complaints about engine and engine cooling for the Toyota Sienna. Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the Toyota Sienna engine and engine cooling?
Yes: 1 safety recall list engine and engine cooling. Check your VIN on NHTSA.gov to see whether the fix was done on your car.
How much does it cost to fix engine and engine cooling problems on the Toyota Sienna?
Owners report a typical cost of $9,300 (half paid between $4,150 and $11,800), from 32 complaints that state a repair bill or quote, in 2026 dollars.
What do owners say about engine and engine cooling problems on the Toyota Sienna?
The most frequent phrase is “oil changes”, in 26 of 293 complaints, followed by “sludge build” (19).
Other Toyota Sienna problems
- Structure problems (2,745)
- Air Bags problems (876)
- Latches/locks/linkages problems (786)
- Electrical System problems (707)
- Power Train problems (554)
- Steering problems (524)
- Tires problems (521)
- Vehicle Speed Control problems (465)
See all Toyota Sienna problems.