2007 Toyota Sienna engine problems

Filed Jun 25, 2026 · Engine, Transmission · 170,000 miles · NC

The contact owns a 2007 Toyota Sienna. While the contact’s 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 parked vehicle. The vehicle was towed to the residence. While examining the vehicle, the contact determined that the shifter cable bushing had failed and needed to be replaced. The vehicle was not yet repaired. The manufacturer and local dealer were notified of the failure. Additionally, previously while driving there was smoke coming from the engine compartment and the vehicle stalled. The vehicle was towed to the local mechanic who diagnosed the vehicle and determined that the oil cooler line had failed causing engine oil to spill from the engine. The rubber oil cooler line was replaced with an updated improved oil cooler line, and the vehicle was repaired. The failure mileage was 170,000.

Filed Mar 31, 2023 · Engine, Transmission · OH

As a result of the transmission cooler being a part of the radiator system, the transmission cooler ruptured while driving causing immediate loss of power and the engine to overheat. This malfunction also caused coolant and transmission oil to contaminate the engine compartment as well as the transmission. This is a major iengineering flaw and safety issue as I was on the interstate when it happened and was stranded on the side of the highway until help could be obtained.

Filed Dec 3, 2021 · Brakes, Engine · 160,000 miles · VA

The contact owns a 2007 Toyota Sienna. The contact stated while driving 40 MPH going up a curvy road, the ABS service warning light illuminated, and the vehicle lost motive power for several seconds before independently regaining motive power. The contact stated that the failure was intermittent. The contact took the vehicle to a local dealer to be diagnosed however, the mechanic was unable to retrieve a fault code. The manufacturer was not made aware of the failure. The failure mileage was approximately 160,000.

Filed Aug 10, 2021 · Engine · CO

The rubber part of the VVT-I oil line appears to worn and leaking. There is a Toyota Campaign to replace this faulty designed oil line with a full metal line, but for some reason my 2007 Toyota Sienna VIN is not showing up with this campaign. The oil will leak from the engine and cause failure. Please re-check which vehicles are impacted by this Toyota design problem in this VVT-I oil line.

Filed Sep 22, 2020 · Engine, Transmission · 126,300 miles · MI

Tl* the contact owns a 2007 toyota sienna. The contact stated while stopped at traffic light, the vehicle stalled with the brake pedal depressed. Several warning lights illuminated on the instrument panel. The contact shifted the vehicle into neutral and coasted into a driveway. Upon inspection, the contact discovered that there was no oil in the engine. The contact refilled the oil however, the oil immediately leaked out the vehicle. A mechanic arrived on scene and replaced an oil hose. After the hose was replaced, the contact heard an abnormal knocking noise in the engine. The contact took the vehicle to several independent mechanics and was informed that the engine failed and needed to be replaced. The contact had the vehicle towed to suburban toyota of farmington hills (25000 haggerty rd, farmington hills, mi 48335) who confirmed there was an engine failure. The contact then had the vehicle towed to an independent mechanic where the engine was replaced. After the engine replacement, the contact experienced several transmission issues. The contact stated that while at a stop, the vehicle independently shifted in and out of gear without warning. Also, while in reverse, the vehicle coasted and jerked upon slight depression of the accelerator pedal. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 126,300.*dt

Filed Aug 3, 2020 · Engine, Transmission · 120,850 miles · TX

Driving 55mph on frwy, van started smoking in the rear and oil on back of van. Slowly drove short distance home and lights on dash came on upon arriving home. Oil leaked on street where we parked. Had mobile mechanic look at it. Oil cooler hose had burst. He replaced it, we drove the van 50 miles on short trips.when on frwy, it happened again about 3 wks later. Had towed home. Same hose busted again. Looked on internet sites & found same problem has occurred to many people with same van year. Longterm ongoing problem. Called tejas toyota in humble, tx and svc mgr said toyota offered an extended warranty (knew there was a problem), but it ended at 100,000 miles/10yrs (we have 120, 900) and is 2007 van. We've already had it towed and fixed twice. We're recovering from near death/covid afraid to drive it since we can't trust it. Based on internet stories by others with same problem, & svc mgr at toyota opinion, fear is warranted. Our van was repaired 2x w/ same type of inferior hose put on van when built by a mechanic not at toyota. None of us realized inferior part was the problem.now we need to repair it again with a "kit" that toyota specifically made because this is known problem after we spent many 100s of $s repairing it using same type part when built. Wouldn't fix it when I called in 2015. It had to break 1st per toyota when I checked on it in 2015 when got notice.toyota should repair it at no cost & reimburse me for the expenses I've already had. My husband had covid and almost died and it happened the day after he was released from a month long covid hospital stay and again when I was taking him to therapy for covid 3 wks later. We could have had a accident, been injured, when the van stops with no notice or warning lights.toyota corp. Takes no responsibility.it's our problem,not theirs. Can't drive van. Will happen again w/out warning. Help please!!!

Filed Feb 22, 2020 · Engine · 60,000 miles · MD

When accelerating the engine makes a tracking noise like bad vavle springs or camps. Only hear the noise when accelerating. Started happening after 60k miles. Common problem with the engine toyota uses with the sienna.

Filed Jan 6, 2020 · Engine · 144,000 miles · CA

As I was driving the van, I noticed a smell like burning rubber, although all gauges were normal and no check engine light was on. Since I was close to home, I pulled into the garage and noticed smoke coming from under the hood and a trail of oil on the drive way. Within a few minutes, there was a large puddle of oil under the vehicle as well. I had it towed to the mechanic and was told the oil cooler hose had broken. The mechanic said if I had driven it to the shop, I likely would have ruined the engine because the oil loss was so significant (out of 5 quarts, only .25 was remaining). The mechanic also said that toyota was aware of this issue but did not issue a recall, even though the replacement hoses are now steel and not rubber. This is a safety issue as the engine could have seized up while running (due to the quick loss of oil) causing potentially serious accident and injury.

Filed Nov 10, 2018 · Engine · 107,000 miles · FL

Oil cooling hose broke and all engine oil leaked from engine. Vehicle was in motion but made to parking spot. No warning of event and no dash/engine light signaling problem. Only oil on ground under van signaled problem. Van was subjected to recall in 2011 which replaced hose. Dealer replaced parts as repair with a complete redesigned part removing rubber hosed all together. This was not a recall but owners expense. Manufacturer never notified owner of this defective part or event possibility.

Filed Nov 9, 2018 · Engine · 165,000 miles · VA

Oil line ruptured due to rubber failure. This oil line was replaced in 2012 with same line as originally installed. Failure can be catastrophic for engine as oil is discharged quickly and with no warning or indication. Vehicle was in motion on a highway when odor and noise made me stop and check. Had to be towed and repaired. Cost over 500.00.