Radiator Problems of Toyota Sienna

I was traveling at 65mph on interstate 90 east. The car while driving when I was giving gas it didnt run forward and it just stopped on the middle of the road with my kids in it. I took it to the dealer and dealer told me that the radiator pipe got corroded so the cooling oil from the transmission didnt flow properly and the transmission failed during the car running. The Toyota has safety recall of excessive corrosion for the spare tire then same thing applies as the corrosion part is underneath of the engine.

See all problems of the 2006 Toyota Sienna 🔎.

Radiator failure resulting in coolant leakage in the transmission fluid and transmission is failing. I noticed my 2004 Toyota Sienna had some belt noise that got worse. The van was due for a water pump/timing belt change. Later the engine temperature gauge read high and after checking the fluids noticed the antifreeze level to be low and topped it up. A week later while driving on the highway steam started coming out of the hood. I noticed the pink fluid had also leaked out of a tube (looked like a relief tube) on the driver side. Radiator level was low. The transmission fuel looked pinkish and read about six inches above the max level on the dipstick. Trans fluid was milky pink, thick, and had grainy deposit. Took the van to the autoland dealer in springfield, NJ to diagnose the problem and to have the water pump and timing belt change at the same time. Had to leave the van overnight. I picked up the vehicle with a nearly $2000 bill for repairs (brakes, tire rotation, timing belt and water pump) other than changing the trans. Fluid or telling me what was wrong. Dealer said someone put additive to the fluid???. Note that only autoland had been servicing the vehicle. They refused to change the trans fluid. "I am not touching that. " the dealer said. I now know from a local trans repair shop that the radiator was leaking coolant into the trans fluid. A known problem with radiators on Toyota vehicles that had a recall. I never received notice of the recall. I now have an estimated $4,000 problem to replace the radiator and transmission that could have been prevented if autoland had done its job properly and not refused to change the trans. Fluid. I am very disappointed with Toyota and with autoland's service.

See all problems of the 2004 Toyota Sienna 🔎.

2009 Toyota Sienna. Consumer writes in regards to engine overheating. The consumer stated he replaced the fan relay and thermostat. However, the vehicle continued to overheat. The dealer replaced the radiator and water pump, but the overheating continued. The dealer informed the consumer they looked into the cylinders with a borescope and saw marks on the cylinder wall which lead them to the conclusion that the head gaskets were bad and they would have to be removed and sent to a machine shop to see if they were warped and the cylinders and engine block would have to be inspected to see if there was an issue.

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My wife and I purchased a 2004 Toyota siena with 25,000 mi. It was a used vehicle when we purchased it. When we purchased the vehicle we also purchased a 7 year, 100,000 mile bumper to bumper extended warrantee that has currently expired. Approximately three months ago we notices that when coming to a stop there was a thump below the vehicle which we originally thought was the transmission. My wife and I brought it to a local shop and explained that when the vehicle hits approximately 15 mph we feel a thump below the vehicle towards the center. Regardless of breaking, accelerating or coasting we felt a thump. We had problems with the transmission while the vehicle was under warrantee. We brought it to Toyota for repair. Toyota replaced the transmission “under warrantee” at approximately 95,000 miles with a brand new transmission. We currently have the vehicle at a local repair shop. They have informed us that the way that the Toyota transmission works is that they have a pipe that runs through the radiator. That allows for cooling for the transmission fluid. We were informed that due to age, the pipe simply corroded and cracked causing coolant to leak into the transmission and transmission fluid to leak into the radiator. We requested the simplest solutions and we were told to replace the radiator and flush the tranny and hope for the best. The repair shop has had the vehicle for approximately a month because the ordered an aftermarket radiator in an effort to save us money. The after marker radiator did not fit. I was informed this past weekend that after speaking with Toyota, Toyota has recognized this issue and has discontinued the standard radiators and a new model with mounts now needs to be ordered. Our feeling is that this is a safety issue as well as a design flaw. What can be done?.

There is a crack in my Toyota Sienna 2004 radiator and the coolant is leaking. I received a letter from Toyota with information that they had received reports of cracks in radiators in 2004 and 2005 Toyota Siennas. As a result of these reports Toyota was extending the warranty on these radiators to 6 years or 72,000 miles from the in-service date. Since I noticed the crack in the radiator in my 2004 Toyota Sienna when it had 85,000 miles, Toyota has refused to pay even a % of the cost of replacing the radiator. I bought the Toyota Sienna and paid the higher price because of Toyota's reputation for using very high quality parts in its cars. I previously owned a Toyota camry and had almost 200,000 miles on it. I did not have any problems with the radiator in my Toyota camry. I called Toyota's customer service department about this problem and they refused to do anything about it, saying that the car is out of the warranty period since it has 85,000 miles. Clearly, the crack in my 2004 Toyota Sienna is directly due to the defective radiator. So many 2004 and 2005 Toyota owners are having problems of cracked radiators after the expiration of the extended warranty period of 6 years or 72,000 miles. The arbitrary extended warranty period of 6 years and 72,000 miles does not protect the Toyota Sienna owners from the defective radiator because in most cases the radiator will crack just after the extended warranty has expired. Toyota should take responsibility for using a defective radiator and at least reimburse owners 50% to 70% of the cost of replacing the defective radiator when it cracks after 72,000 miles.

Under Toyota's customer support program, a technical service bulletin was put out saying that 2005 Toyota Siennas had faulty radiators that cracked in cold weather and could lead to coolant leakage and subsequent engine seizure (safety report #0506). When the weather started getting cold this winter, my radiator cracked and I needed to to be repaired as the engine was running extremely hot. When I found this bulletin and brought it to Toyota's attention they refused to honor it saying that my VIN number was not in the range. When I asked why this was the case, they claimed (they being Toyota's national headquarters) that they had realized the fault and therefore switched the radiators out during production. Upon closer examination, the bulletin was announced by Toyota on January 30, 2006. If what they claim is true, then they were knowingly selling cars with faulty radiators for about a year and a half before they issued the recall. If they were lying, then the recall needs to be extended to include all Toyota Siennas of that year.

See all problems of the 2005 Toyota Sienna 🔎.

While driving home the oil line running from the oil cooler on the radiator exploded. Oil was sent over the entire engine compartment and dripped over the road leaving a trail the block left going to my house. The hot oil spraying over the hot engine was a danger to catching the van and the garage it was parked in on fire. This is an extremely dangerous problem that Toyota is aware of yet has not issued a recall for these vehicles. I was lucky that this happened so close to my home.

See all problems of the 2008 Toyota Sienna 🔎.

After a short trip, 5 miles, I was backing into my driveway when I noticed some fluids on the cement. I checked the liquid and was not sure if it was coolant or transmission fluids so I called my mechanic and he recommended that I should have it towed in . It turns out that the problem was that a connector at the bottom of the radiator cracked and was mixing the coolant with the transmission fluid ,it appears that a defective fitting was the problem. It cost me $977. 3 to replace the radiator and flush the transmission. My mechanic said if I would have continued driving with these 2 fluids mixing I would have damaged the transmission beyond repair for a bill of $3,000. More if this is a common problemon these cars people should at least be notified what to watch for or better yet repaired by the company.

See all problems of the 2007 Toyota Sienna 🔎.

During the timing belt and water pump replacement, Toyota technician found radiator had a small leak and suggested to call Toyota company . Toyota representative from company informed the radiators had problems for 2005 Sienna but they will not be able to fix it because mileage is more than 75000 or vehicle is more than 7 years old.

During inspection and repair of other vehicle recalls, it was determined that power steering assembly was severely leaking fluids, that radiator was leaking in 3 places, and air conditioning coils hoses\brackets were corroded and cracked due to manufacturer using two dissimilar metals (such as steel bolts in aluminum assembly) and thereby requiring immediate replacement for safety. Toyota dealership upon inspection declared steering assembly a "critical" repair and issued written documentation. I took vehicle to another shop and they confirmed Toyota's dealers conclusion and also found radiator and conditioning coils problems missed by dealer. All problems have been fixed at owners expense - a recall should be made by manufacturer.

The contact owns a 2005 Toyota Sienna. The contact stated that while having the vehicle serviced, the mechanic noticed that the radiator was leaking. The radiator caused the vehicle to stall and overheat due to loss of fluid. The contact took the vehicle to a dealer and the dealer stated that the radiator needed to be replaced. The radiator was replaced at the contact's expense. The failure mileage was 67,000.

Here is a list of mechanical malfunctions indicating manufacturing defects on my Toyota Sienna. The current models recalled by Toyota motors do not cover all vehicles with defects. Based on my personal experience in the past few years, Toyota motors have a lot of lying employees in their authorized dealership. In short, Toyota motors put their business interest way ahead of the life safety of american people. I hope national highway traffic safety administration will check this manner and enforce proper regulation. Updated 03/14/10 the consumer stated the engine would stall. The dealer replaced the upper radiator hose and coolant. The consumer also stated he had problems stopping the vehicle, which led to an accident. Updated ivoq 10/12/10.

See all problems of the 2003 Toyota Sienna 🔎.

Engine overheated on numerous occasions, slow loss of radiator coolant noted, and 2 engine thermostats replaced before cracked radiator was discovered. While owner was investigating problem, it was discovered that Toyota issued a couple of years ago a TSB and a limited warranty extension to replace radiators from this year (2004) and the next (2005) of the Sienna van. However, we have been only owner of this van and have received every other notice from Toyota regarding this model year of van including the bad door hinges (replaced under warranty), gas struts on rear hatch (replaced under warranty), and bad seat belt bezel (replaced under warranty) - but we never received any notice of the radiator issue - our radiator is now damaged beyond repair and needs replacement and Toyota will not replace even though this is apparently a well known issue at Toyota. There should be a full recall on this item given the amount of known bad radiators out there. This is a safety issue as the radiator is prone to sudden and catastrophic failure. The only known repair is to replace the radiator. There is extensive online documentation of this issue - but Toyota continues to stonewall most owners on this problem due to the expense (this is much more expensive to fix than the bad hinge, gas strut, and seat belt bezel that did have safety bulletins issued on them. . Read more...

The contact owns a 2005 Toyota Sienna. The contact stated that both the driver and passenger side doors were inoperable. The keyless entry would not operate and she could only enter the vehicle manually. The contact had to manipulate the lock entry in order to enter and exit the vehicle by holding the manual lock in place while closing and/or opening the door. The radiator was also in need of repair. No repairs have been performed. The VIN was unknown. The failure and current mileages were over 100,000.

The contact owns a 2004 Toyota Sienna. While driving under 40 mph, the air conditioner failed to work properly. The air conditioner stopped working and the temperature on the thermostat continued to rise the following day. The contact checked the coolant and noticed that there was no antifreeze; therefore, she refilled the radiator. This did not keep the vehicle from overheating. She took the vehicle to a local dealer and they stated that there was a leak in the radiator core. The vehicle has not been repaired. The VIN was unknown. The failure and current mileages were 93,000.

~2007, radiator leak, engine heated up - almost fire ~2008, radiator leak, engine heated up - almost fire ~2011, radiator leak, engine heated up ~2014, radiator leak radiator failure has occurred for every two years. Almost in fire for multiple times! driver is constantly under danger of fire. Toyota customer service responded by offering a $200-300 credit, suggesting Toyota knows there is something wrong for such frequent radiator leaking. But it refuses to disclose details. For the safety of drivers, please investigate. Individual driver like myself is too small to talk to Toyota. Toyota even did not answer my question.

Overheating radiator, I was told it was a product recall from Toyota,I was never notified, nor do I see the recall mentioned anywhere,I was also treated very rudely at boch Toyota in norwood MA when I complained about it.

The vehicle overheated and caused the engine to seize while driving 45 mph. Consumer and his children were left strained for several hours before help arrived. Vehicle was towed to the dealer, who d replaced the radiator, which was covered under a recall. Consumer stated he was never notified of this recall.

Radiator ruptured and the engine overheated; hose replaced in steering column recall; rust protective tape recall; dvd screen replaced and the entire dvd player replaced(screen still not easily visible in middle row); passenger seat belt replaced; middle passenger seat belt failing; gasoline smell inside of car with ac on recirculation; driver's window fell inside door in snow storm and was not considered a safety issue to get a loaner vehicle even though the vehicle could not be locked; tires completely bald and leaking under 30,000 miles, dvd player must be at a high db volume and when returned to radio/cd will almost deafen you; interior lights have to be manually over ridden or will drain battery; car hesitates 1-2 seconds when trying to quickly accelerate and then lurches forward alarmingly; cruise control is not functioning; waiting to have fuel mixture sensor replaced. I was not informed of first 2 recalls until I my engine overheated. I did get the rust recall and a sticker on my sliding door informing user of danger of having middle windows open while opening the middle door could catch a head or other extremity. Toyota dealer service manager says mine is the only 04 Sienna experiencing any problems except for the recalls on the radiator; the steering hose; the rust tape; and the middle seat belt. Not so according to all I have read here. Most of the problems have occurred between 22,000 and 34,000 miles; the dvd screen always failed to lock into a good position for the middle row viewers.

Email fm lisa dawn jones (ky) re her defective 2001 Toyota Sienna, the gas tank & radiator have been replaced & the engine gelled. The consumer recently purchased a 2004 Sienna after learning that it was totally redesigned including the engine. Immediately after purchasing the vehicle the consumer heard that there was a problem with the gas tank. The vehicle has been taken to the dealer several times. To date the consumer has had the gas tank replaced, the radiator replaced and is in the process of having the gas tank replaced a second time.

I bought the Toyota Sienna on July 4 2003. I received a recall notice within a month and had repair done on August 29, 2003. The gasoline tank repair was done incorrectly, resulting in me being stranded away from my home, with two kids in the car, with gasoline oozing all over the ground. This was a clear fire hazard. Then in October 2004, I was driving on the highway, the driver side window came out of the frame. The dealership agreed it was manufacturer's defect and fixed it. I felt very unsafe driving home in that car. E now have received a recall notice about steering fluid hose defect and radiator defect. With 5 defects in one year after buying a new car I feel it is a safety hazard to drive this vehicle with two kids. This is also the car I use for commuting. I cannot rely on this vehicle any more.