Four problems related to check engine light on have been reported for the 2007 Toyota Sienna. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Toyota Sienna based on all problems reported for the 2007 Sienna.
The contact owns a 2007 Toyota Sienna. The contact stated that while driving approximately 55 mph, the check engine warning light illuminated. The contact checked the oil level and noticed it was low on oil. The contact added oil and the vehicle would not restart. The vehicle was towed to a dealer, who stated that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 127,000.
Back on August 7, my vehicle was brought to balise Toyota because of a check engine light. They replaced all 6 spark plugs and iginition coils 1 & 6. On October 24, the check engine light came back on and I brought it back to balise Toyota. They saw misfire codes. The cleared the codes and couldn't duplicate it, so nothing was fixed. On December 7, the check engine light came on again. This time, dissatisfied with balise, I brought it to colonial auto. Again, dan murray, the owner of colonial auto found misfire codes and faulty ignition coils for numbers 2 - 5. This resulted in a total charge of $961. I contacted Toyota, because I am unsatisfied with the relability of the Sienna and the lack of care on balise Toyota's follow through. They should have caught this back in August, but now my warranty has expired and Toyota won't help.
The contact owns a 2007 Toyota Sienna. The contact stated that the check engine warning light illuminated. The vehicle was taken to the dealer for diagnosis where the technician stated that the baffle on the valve cover was fractured, causing damage to the engine. As a result, the engine would need to be replaced. The manufacturer was made aware of the failure. The vehicle was not repaired and returned to the dealer as a trade-in. The approximate failure mileage was 27,646. Updated 01/07/14 updated 1/17/2014.
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.