general problems of the 2008 Toyota Sienna

The head gasket that was repaired failed and the radiator system also failed. Im not sure if these issues are dealer related or manufacture related as I spoke to the previous owner and they stated they had the vehicle serviced at a manufacturer prior to doing a trade in with the dealer.

The contact owns a 2008 Toyota Sienna. The contact stated while pulling into a grocery store, he heard an abnormal ticking sound. The contact stated upon parking and inspecting the surrounding of the vehicle, he noticed that engine oil was leaking onto the ground. Additionally, the oil dipstick was dry upon inspecting the oil level. There was no warning light illuminated. The vehicle was taken to a local pep boys where oil was added in the vehicle and the contact drove to his residence. However, the failure persisted while driving. The vehicle was towed to the dealer where it was diagnosed that the exhaust cam gear had fractured, causing damage to the engine and to other components. The dealer diagnosed that the engine , the exhaust cam gear and the timing chain needed to be replaced, and unknown repairs needed to be completed. The vehicle was not repaired. The contact related the failure to an unknown Toyota extended warranty. The manufacturer was notified of the failure and informed the contact that they could not assist due to the vehicle manufacture date. The failure mileage was approximately 204,000.

Car speed varies when doing a moderate speed example 40 mph sometimes feels like its engine slips and speed slows car jumps forward feels like engine slips or gear shifts. Engine bogs down or sometimes revs up a little. . Scares me sometimes but no choice but to drive.

Vvti oil line has large hole all of a sudden, caused very quick loss of all oil in car. I was in motion on the highway, and oil light came on. I was able to get the car pulled over and stopped. If I had been in a worse position, it would have caused engine seizure. There is a limited service campaign on this, my vehicle had it replaced in 2014, and it failed again because they put the same faulty part with rubber hose connector. In 2010 they actually released same engine with an all metal oil hose, but thats not what they replaced it with on the technical service campaign.

This vehicle has 3 open recalls on it I have contacted my local Toyota dealership in wooster ohio and the service advisor informed me it would take a few hours to do all the repairs and id have to wait or drop it off I as a customer feel its unfair for Toyota to make a customer wait for hours to fix repairs that are faults of the car manufactuer I asked for a loaner car while the work is completed they refused saying the only way a loaner is given is is the recall is door related.

While putting on the brakes to stop for a traffic light the engine suddenly revved up to 6000 rpm and tried to take off by itself. I pushed the gear shift into neutral and put my left foot on the brake to keep the car from moving. I kicked the accelerator pedal several times until it disengaged. This is the 4th time this has happened. There was not a floor mat involved as there was not one in the car at this time. The last time I talked to a Toyota dealer about this they said this could not happen and I was wrong about what happened. The dealer did not document any of this and wanted nothing further to do with me. This is dangerous and happens with no warning when you push the brake pedal to stop for a traffic signal or to pull into a parking space. My wife was also in the car two of the times and saw what happened. She was not in the car for the latest episode.

The vehicle came to a stop at a stop light and the odour of something burning entered the cabin. No lights on the dash appeared and drove to the next parking lot to find a trail of oil behind the vehicle and a pool of oil under the engine. I had the vehicle towed directly to the dealer to find out a 'pin hole' was found in the oil cooler hose. This is not the same hose as the vvti that has been recalled already. The dealer informed me it's like the two other rubber hoses carrying oil on the engine but has not been recalled. The cost to have it replaced with a steel line is $429 cdn. This van was purchased new in 2009 and brought into manitoba, canada from the us.

During a recent trip to alabama from virginia, our 2008 Toyota Sienna suddenly accelerated while pressing the brake pedal instead of braking. Both times, we were approaching moderately heavy traffic. My wife went to apply the brakes to slow the van. Instead of braking and slowing the vehicle, the van went into full acceleration mode. The transmission downshifted and started applying full throttle. The first time we thought we were going crazy. The second time, both my wife and I watched as her foot applied the brakes and to our amazement, the van started accelerating again! luckily both times, my wife took her foot off the brake pedal and reapplied once the van stopped accelerating and the brakes worked then. I haven't had time to take this into the Toyota dealer yet. We are still under a 30 day warranty with carmax, so I have communication out to them to see how we should handle this situation. I thought this Toyota sudden acceleration story was exaggerated. Now I've experienced it myself.

The rubber portion of the oil supply hose for the wt-1 actuator failed resulting in a sudden loss of several quarts of oil. This oil was carried along the undercarriage and sprayed a fine mist of oil on the windshields of the cars behind the van. Luckily this occurred close to home at a low speed. If this was on the highway it could have caused sudden reduced visibility for the drivers behind the vehicle and could have led to an accident. I am sorry but using a rubber hose on an oil line is one of the dumbest things I have heard of. Fortunately for us, no one was hurt and no damage was done to the vehicle. I don't understand how this has not turned into a recall. This was a big mistake on Toyota's part.

I had a oil hose in my van get a hole. When it happened it spilled oil all over and in my opinion could have started a fire. The hose is connected to a pipe and the hose cannot be replaced. The whole pipe has to be replaced and I replaced mine. My research revealed this is a fairly common problem and that there is a Toyota service bulletin for this problem but in the bulletin they claim it's for seepage of oil. Obviously Toyota knows this is a problem as the new part I ordered is complete pipe with no hoses. The part number for the pipe is 15767. Is this something that can be further looked into as to why this is not a recall that Toyota should properly fix?.

After driving vehicle for appx. 15 minutes then parking, then coming back to vehicle 5 minutes later I found a pool of oil under the hood of van and called for tow to the dealership. Rob from the Toyota repair service, claims I had bad luck regarding the oil cooler line rupturing. It will cost me $442. 00 to repair/replace and clean the vehicle. After hearing this I checked online and other vehicle owners are having similar problems with similar vehicles that have a v6 engine with towing package from Toyota. The service person claims its not covered under my warranty. He also claims that it wasn't damaged accidentally neither.

While pulling into my driveway I smelled oil and noticed a line of liquid down the driveway. Turns out the oil line ruptured and the engine oil drained almost completely, within a matter of minutes. There was no warning indicator or anything adverse until that moment. Thankfully I live near a mechanic and we were able to leave it there. Apparently this is a known problem at Toyota- as the part was on a national backorder. Thankfully I did not suffer engine damage- many others have, and this should be a recall worthy issue.

On a rainy Sunday afternoon I was driving 65 mph on the interstate when the check engine, vsc and trac off lights came on. The vehicle was taken directly to the dealer the next morning (69 additional miles were driven). When tested the code indicated to inspect the vvt-1 system, including the actuator bolts and alignment. Upon inspection (requiring the engine to be partially disassembled) it was determined that the vvti gear was coming apart causing debris to spread throughout the camshaft gears and housing only for cam bank 1. This is an obvious material quality defect and Toyota's only statement is "we don't have a recall for this". My van is 90 days past the 5 year & 17,369 miles over the 60,000 warranty. (note: other manufacturer's offer a 100,000 powertrain warranty). This van has only been serviced by this dealer. This single repair bill is $4,295. 00 with no guarantee the other cam bank won't do the same thing, requiring another high service bill. After 3 days of waiting for Toyota to investigate, they only offered a goodwill contribution to the repairs of $2,400 . . . But only after I submit paid receipts and then wait 10 weeks for them to reimburse me. They flat out refused to send the payment to the dealer. This is Toyota's premier family vehicle and if the engine has seized while driving could have killed my family or someone else. I have driven Toyota's for over 15 years and never heard of this kind of materials defect and then to be treated this poorly over a major safety issue that is a direct result of poor quality materials. I guess they would have been more interested if someone had died. I think everyone who owns a 2008 Sienna should be aware that this model has a vvti gear material quality defect that can be expensive to repair or cause the engine to seize while driving and kill someone. Who knows if other 08 models are also affected.

We have owned the Sienna for 4 years and 53,000 miles without incidence. We have had it serviced by the Toyota dealer and have had all scheduled maintenance. One afternoon, after driving the Sienna all day, we pulled it into our driveway (which is on a slight incline) and placed it into park. After doing this, instead of the brakes being applied, the Sienna rolled back as though it were in neutral. We brought the Sienna to the Toyota dealer who inspected it. They told us the pin that enables the brakes upon placing the Sienna in park was completely shot and the entire transmission would need to be replaced. The service manager said he has never seen something like this before and that these pins don't wear out over time. The service manager also told us that you would only see damage to the pin if you were driving the car and then suddenly put it into park while moving at a high speed. The service manager contacted the offices of Toyota corporate and had the case reviewed. It was determined by Toyota corporate to be related to the warranty and they are replacing the entire transmission.

The contact owns a 2008 Toyota Sienna. While driving 65 mph, the contact stated that thea push rod fractured causing a hole in the engine. The vehicle was towed to the dealer where he was informed to replace the engine. The manufacturer was aware of the failure. The current and failure mileage was 60,600. No repairs were performed.

Piston slap on Toyota 3. 5 l v6 since new. Very loud when cold in cooler temperatures. . Ca arbitrator agrees with Toyota that this is normal for this engine. I cannot sell this car with this noise but Toyota doesn't care. Toyota has had a few complaints but no failures yet. Piston slap wears the piston prematurely and could in my opinion lead to failure. This is my 2nd complaint to you people for the same issue.