Diesel Engine Problems of Toyota Sienna

Toyota Sienna owners have reported 3 problems related to diesel engine (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Toyota Sienna based on all problems reported for the Sienna.

1 Diesel Engine problem of the 2007 Toyota Sienna

Failure Date: 06/25/2012

Driving on the freeway @ 85mph when the check engine light came on. Promptly, I pulled the Toyota manual which said could be faulty gas cap and may go off with consecutive drives once fixed or if it stays on after to go to dealer. The car was running fine so I headed to my exit to pull over. Shortly, thereafter a horrible diesel engine grinding noise. I had just had my tires rotated (replaced just one month prior) that weekend and the oil changed the weekend before. As I was about to pull over the engine oil light flashed. When I pulled over I immediately checked the oil stick dry we had been given the run around about the part by mossy Nissan that the part was on backorder and was part of the recall. The vehicle was later towed to Toyota of poway and for $500+ to inspect and replace this hose(not part of recall) wanted another $3000 to tear down the engine and the addl charges to fix I have religiously had my oil changed and have always had my Toyota certified mechanic work on my car. I contacted Toyota consumer service for assistance in fixing the problems they indicated they would not help since the hoses were not part of the recall. The hoses are 2 rubber hoses that have clamps leading to a triangular metal piece. The hole was not in a location that something could have pierced according to my independent mechanic who tried to get the part from the first dealer. . . . Which leads to the fact that these are faulty hoses that deteriorated. Toyota has offered a goodwill payment of $750 towards a new or used certified Toyota car. But that is at a 20% interest rate. It is my hope that others will see this and get this fixed before they end up like me single mom of 4 without a car working 5 days a week 150 miles from my babies and can't even go home to see them till the weekend. A big thank you Toyota. I have paid $800 out of pocket.

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2 Diesel Engine problem of the 2007 Toyota Sienna

Failure Date: 06/20/2009

I bought a second hand 2007 Toyota Sienna le in June 2009. The vehicle had about 49,000 km. I noticed that vehicle had produced unusual noise when started at cold. It sounded like diesel engine. I took a vehicle in to a Toyota dealer and they attempted to correct the problem. Apparently, there is a TSB issued on this problem. Although I appreciate the dealer's honest effort in correcting the problem, the noise is still there when engine is started at cold.

3 Diesel Engine problem of the 2007 Toyota Sienna

Failure Date: 03/01/2009

Purchase a 2007 Toyota Sienna minivan in December 2007 with almost 20,000 mile in it. After purchase notice that when engine is cold it sounds like a diesel engine until it warms up. Also notice what feels like a slip in the transmission in lower gear. This happens if following behind someone and they turn u need to slow down. When u accelerate to get back up to speed there is a delay or a slip before transmission engages, complained with the local dealer (andy mohr Toyota) where purchase from. We have complained since day one of ownership. Toyota dealership states that the vehicle has a memory transmission and learns your driving habits. Well me and my wife don't drive the same and neither does anyone else. No people drive the same and why would someone make a vehicle like this. They also stated that there is no fix at this time. Just trying to blow me off. As for the engine slap when cold they told me it was the exhaust heating up. Now I am no mechanic but let me tell you that is not an exhaust clapping up while heating. Called Toyota USA and file a complaint after a year being pissed at what we spent and how unhappy we were. They set up a third party arbitration and a person from Toyota. We met at the dealership and I voiced my concerns. We even went on a test drive so I could show them what it did. What a joke that was. The person from Toyota explained to me the vehicle was doing exactly what it should be doing. ( the delay in the transmission to me seems to be another Toyota problem that they don't want to acknowledge and im just crazy. ) I have never owned a vehicle that did this. I guess we will need for some people to get rearended and killed before something is done about it. Nothing came out of it and now we are stuck with this expensive van that's a heap. Purchased Toyota for there reputation and what a joke. Never again will I do this. I will sure research before I purchase my next vehicle. Toyota's a joke don't buy!!.




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