Two problems related to check engine light on have been reported for the 2006 Toyota Avalon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Toyota Avalon based on all problems reported for the 2006 Avalon.
1. Without warning, the engine started making whirring noises when in motion and the engine check light illuminated (unbeknownst to me, it was dropping oil. 2. After it was first repaired under warranty, it occurred again. 3. Dealer reported failure of the vvt-I pipe, replacing the pipe, timing chain cover, gaskets, camshaft gear assembly, cylinder head gasket, camshaft bearing, camshaft gear assembly, additional gaskets and bolts.
On 2/3/09 while driving to work my check engine light came on. Once I arrived at work I could see that there was oil all over the rear and under carriage of my car. I checked the oil in the engine and it was empty. I had the car towed to the dealership. They told me that the vvti line had broke and all the oil in the engine was gone. The part was on back order for 2 weeks. They could not tell me the extent of the damage to the engine until they take it apart and inspect it. They gave me an estimated bill of $1800 for parts only, not including labor charges. My warranty expired 2,000 miles ago. My car is taken in for regular service. When I called Toyota they said they can not help me because the technical service bulletin put out about this part did not include my car, it was for the '05 model not the '06.