Table 1 shows three common other fuel system related problems of the 2015 Toyota Sienna. The number one most common problem is related to the other fuel system (four problems). The second most common problem is related to the other fuel system tank assembly (two problems).
| Problem Category | Number of Problems |
|---|---|
| Other Fuel System problems | |
| Other Fuel System Tank Assembly problems | |
| Other Fuel System Pump problems |
There is an evap emission leak and the p0456 error states the gas cap is faulty. I had it replaced and replaced again. So I am waiting for another brand new gas cap-3rd brand new one. So 4th overall for this van. A smoke test was done and there is no leaks per the test. Read details...
Fuel line leak above gas tank. Leak caused by friction between pressurized fuel line and car frame. Read details...
The fuel pump intermittently fails. Sometimes it won't start at all, sometimes it starts but the engine stumbles before it shuts off, and sometimes the engine will just shut off while accellerating on the road. Read details...