general problems of the 2020 Toyota Avalon

Three problems related to other fuel system have been reported for the 2020 Toyota Avalon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2020 Toyota Avalon based on all problems reported for the 2020 Avalon.

1 Other Fuel System problem

Failure Date: 10/10/2025

A couple of months ago, my car started running a little rough as it would sit in idle mode. When suddenly my check engine light came on. I checked the codes and they seemed to be p0445 evaporitive emission system leak detected (large leak). And p0441 evaporative emission system. Incorrect purge flow. P0505 idle control system. And p0171 system to lean bank 1 and p0174 system to lean. Bank 2 and p0172 system too rich and p1170 and p117b manufacture control. But other then just running a little rough at idle that was about all that I had noticed until I went to go fuel up back in October. My fuel was low so I went to fuel up and after wards, my car struggled really hard to start. And every time since that days it’s progressively gotten worse. Last week I kept my car running while I fueled up and as I drove away from the gas station, my car just stalled out completely. It took me about an hour and a half before my car would start again. I was waiting for the tow truck to come get me and thank god inc checked it one more time and it started. Now just recently, when I put my car in park the engine immediately reva up super high. It started to wine really loud and rpm go through the roof. Until I shut the car off. So I am unable to sit in idle at all anymore. I decided to google what could be going on with my car and then I seen this recall on the fuel pump off some Toyota Avalon 2019 & 2020 models. But much to my surprise, my VIN/vehicle is not listed. Will Toyota still replace the fuel pump for free? please contact me as soon as possible. I really need to address this issue. Thank you!.

2 Other Fuel System problem

Failure Date: 11/25/2023

When refueling vehicle, gasoline backs up immediately, doesn't shut off gas hose and pours out all over vehicle and feet of person refueling. Today is the 4th time it's happened. It's been to gettle Toyota of lakewood in bradenton FL for this exact complaint and was told there's nothing wrong with the vehicle.

3 Other Fuel System problem

Failure Date: 12/14/2021

This has happened 3 times now. When putting gas in and the pump kicks off fuel gushes out of the tank. I only had a quarter of a tank at the time. Only got $1 worth in the last time this happened. If you try to put more fuel in pump will kick off then it just pushes fuel out all over the ground, which could easily cause a fire. Took to the dealer today to get this on record, had a full tank so they did not not try to gas it up. Get no warning that this is going to happen. On all 3 occasions I was able to gas up without an issue the next day.


Other Other Fuel System related problems of the 2020 Toyota Avalon

Other Fuel System problems
3
Other Fuel System Pump problems
2


Avalon Service Bulletins
Avalon Safety Recalls
Avalon Defect Investigations