2011 Toyota Sienna engine problems

Filed Apr 17, 2026 · Electrical, Engine · TX

The catalyst, the Evap and the EGR/VVT

Filed Apr 9, 2025 · Engine · KY

I just but this car but I think the seller changed the mileage on it.

Filed Nov 11, 2023 · Engine · IN

Driving down highway noticed white smoke coming from car. Exited highway and warning light then came on saying engine oil low. Stopped van immediately on side of the road and had it towed. Appears the oil coolant line burst which is a known issue on these vehicles after google searching, but was never made aware. Always completed all recalls. Extremely dangerous especially with children in car.

Filed Dec 26, 2020 · Engine, Fuel system · 110,000 miles · VA

I was driving from toronto to virginia on 23 dec 2020 and refilled gas in springfield ny walmart gas station to refill the gas. When I entered bedford pa turnpike, the car sounded with different sounds from engine on the ramp when entering the 70/76 freeway. When entered to virginia from maryland border after potomac river crossing on highway 15 , the car suddenly stopped while driving at 30 MPH and pulled the car to the side of the road slowly and when I restarted the car, it started normal and drove till chantilly virginia without any stopping. But the engine gave me different noises.

Filed Nov 5, 2020 · Engine · 108,250 miles · NY

While driving I heard a noise coming from the engine. I stopped and park the vehicle, opened the hood an noticed oil all over the bottom part of the engine. (oil leak or seep from the engine oil cooler pipe).I purchased this vehicle from a toyota dealership in stanford ct. And I was never advised of this issue, nor from toyota or the dealership itself, even though a communication was sent to all toyota dealer principals, service managers, parts managers. I spent $60.00 dollars for tow truck / $148.14 on toyota original parts / $270.00 for labor. I spoke to two company toyota representative and was informed that they no longer are responsible for covering this problem as warranty coverage expired on march of 2020.I was expecting for toyota to cover my expenses as this is a factory engineering design done wrong. Roberto martinez 374 wadsworth ave apt 6c new york, ny 10040

Filed Sep 12, 2020 · Engine · 127,000 miles · MN

Https://www.youtube.com/watch?v=wlhcldcxtn4&feature=share&fbclid=iwar3tipwlfm7uxqpyitisicpv6sgc-6vesvn-z04zs4e2pwycyn2ty9u4l34 my motor now has a severe valve and rod knock watch the video. Millions of people could be stranded in the middle of nowhere if they do not know about this negligent design flaw. Toyota designed an rubber oil hose that gets stiff and breaks. This is design negligence to use rubber hoses on an oil system. Toyota redesigned this part with steel instead of rubber .this shows me they knew the design was bad in the first place. Van's ABS and vsc lights come on but no oil light warning. My motor started making noise but I didn't know it ran out of oil. There was no oil warning light. I didn't know it was the motor making noise. My car engine was completely out of oil. Again, no oil light warning. Since I found out about this, I found out about four more sienna's that had the same defective parts. Frankly all of these hoses will go bad as the mechanic remarked about this problem car engineers know exactly what they are doing when they design a car. I worked in manufacturing and engineering those parts are well documented when they are predicted to fail. One would consider two scenarios. 1.they had bad engineers designing this system, however car manufacturers know exactly what they are doing when they design a vehicle. 2.or they designed it to break to sell more replacement engines for four thousand dollars each. They kept this a secret or made no mention of this probably to sell engine replacements. The toyota manager called me and basically told me tough. Therefore I will be suing them in small claims court. Hopefully toyota will be replacing my motor. By the way I take very good care of my vehicles I maintain them with regular vehicle inspections along with oil changes at the prescribed mileage.

Filed Feb 14, 2020 · Engine · 160,000 miles · WI

All the oil leaked out due to a faulty oil cooler pipe. The part is faulty plastic and toyota knows this is a defective part. They did an "enhanced warranty" instead of a recall. This happened in my garage when the vehicle was stationary. Messy and dangerous.

Filed Sep 4, 2019 · Body, Electrical · 110,000 miles · VA · fire

My van cut on fire last saturdar, september 1st 2019. For no apparently reason. I drove about 5 miles from my house to the grocery store, when I notice the smoke, I first though was the car in front of me. But was smoke coming from my hood. I was just about to stop at a stop sigh and I look the temperature gate and it was fine, turn of the car and people from the parking lot was already yelling for me to get out of the car. More than 2/3 of the van was totally destroyed in the fire.

Filed Aug 19, 2019 · Engine · 156,000 miles · OH

Tl* the contact owns a 2011 toyota sienna. While driving, the engine oil cooler pipe burst and spewed oil all over the rear of the vehicle. The vehicle's rear window was completely covered with oil. The manufacturer extended the warranty; however, the contact was not covered since the vehicle exceeded the warranty. Buckeye toyota (1903 riverway dr, lancaster, oh 43130, (740) 654-3943) stated that they could not authorize a repair out of warranty unless approved by the manufacturer. The manufacturer provided a case number and stated that they would not cover the cost of the repairs. The contact called the state attorney general's office. The vehicle was not diagnosed or repaired. The failure mileage was 156,000.

Filed Aug 16, 2019 · Engine · 125,000 miles · IL

Oil cooler hose: from my experience, and from what I've read from others, this is a considerable safety issue. A recall would be very appropriate for both road safety and for consumer protection. A suspected blown cooler line just happened to me last night, and I was very distracted when I realized my 2011 toyota sienna (about 125k miles) went from providing normal responsiveness to giving incomprehensible feedback within seconds. A "low oil" message flashed once on the center console as I was pulling out of a gas station into traffic. This light did not return. No other lights lit up at any time. Immediately, however, I noticed hesitation when trying to accelerate. I thought that it was an electrical problem at that point, perhaps it was affecting the fuel injectors. Then I noticed a clicking noise coming from the engine. At that point, I pulled over at the next safest opportunity and turned off the vehicle. I popped the hood and noticed oil everywhere toward the bottom of the engine compartment/underside of the vehicle. The dip stick was dry. This all happened within 0.75 miles on a two lane state highway (one lane in each direction) with a 55 MPH speed limit. I certainly wasn't driving defensively during this time, and I had very minimal awareness of any vehicles around me. The acceleration issue could have been catastrophic if I had tried to beat traffic that was far enough away to proceed, yet close enough to think twice. Fortunately, I'm not an aggressive driver, and I waited. The whole experience has baffled me as I've never experienced such a complete and sudden failure while driving a vehicle. Please consider this report and review the numerous online reports from drivers who also experienced a sudden, massive oil leak while driving their 2007-2011 toyota siennas. Toyota is well aware of this recurring issue. A safety recall would seem appropriate.