2017 Toyota Tundra fuel system problems

Filed Jan 3, 2026 · Fuel system · LA

Began experiencing long cranking, difficulty starting, then rough idling. Started researching online and found recalls for 2018 -2019 Flex fuel 5.7 Tundras. My 2017 is also a Flex fuel 5.7 with exactly the same issue. Dealer says 2017 not covered. I had to pay over $2000 to have the fuel pump replaced, ECM reprogrammed. I don’t understand why 2017 was not included in the recall. Please the federal safety agency consider extending this recall to 2017. I am reading numerous complaints on this website about the same issue from owners of 2017 Flex fuel Tundras.

Filed Oct 21, 2025 · Fuel system · NC

Cold starting problems so the dealer diagnosed as a defective fuel pump.

Filed Jan 17, 2025 · Fuel system · TN

My 2017 Toyota Tundra had been starting roughly the past couple of weeks, I initially thought this was due to the very cold weather we recently had. It has just over 71k miles on it, so there should be no issues with this truck. Then on the afternoon of 1/16/25 I tried to start my truck and it would turn over, but not start. No fuel was getting to the engine. I did some research on this issue and it seems a recall was issued for 1.5 MILLION Tundras from 2017. I did a search for my VIN and nothing comes up. I want this fixed by Toyota as it should be included in the recall. Now I have a useless hunk of metal sitting at my house because I cant even start it to get it TO the dealership. Please help me resolve this and have Toyota take care of the problem. I dont understand why my vehicle was not included in the 1.5 million vehicles initially covered. Please, help consumers out with this. Please advise. Thank you in advance.

Filed Dec 10, 2024 · Fuel system · FL

Flex Fuel Extended Crank when engine is cold. Have had into dealer multiple times and fix is temporary. Known issue with flex fuel Tundras that keeps returning

Filed Oct 17, 2023 · Fuel system · 78,000 miles · FL

The contact owns a 2017 Toyota Tundra. The contact stated that after attempting to start the vehicle, the engine failed to turn over. The contact stated that after several attempts, the vehicle started. The vehicle was taken to the dealer where it was diagnosed and determined that the fuel pump and the CPU had failed, and the fuel pump needed to be replaced, and the CPU needed to be reprogrammed. The vehicle was repaired; however, the failure recurred. The contact stated that while driving at an undisclosed speed, the vehicle stalled. The contact was able to restart the vehicle. The check engine warning light illuminated. The contact stated that he used a code reader to diagnose the vehicle and the result showed that an ethanol fuel type had been detected instead of regular fuel to refuel the vehicle. The contact stated that the system was confused, and that ethanol was not the fuel type that was used. The dealer was not notified of the failure. The manufacturer was notified of the failure and the contact was informed that the VIN was not included in a recall. The failure mileage was approximately 78,000. The VIN was unavailable.

Filed May 19, 2023 · Fuel system · AK

Our 2017 Toyota Tundra has been having difficulty starting, takes multiple attempts before starting. We brought it to Toyota dealership and had a diagnostic done. They told us we need new fuel pump and the ECM software needs to be updated. There is a know problem with Denso fuel pump system along with class action lawsuit. We were told that our vehicle is not included in that lawsuit. We were also told by Toyota dealership that the fuel pump is on back order and they are not sure when it will arrive. They said it could take months. With this fuel pump issue our safety is at risk because our vehicle could lose power at any time. There were no warning lights to alert us to this issue.

Filed Feb 2, 2023 · Electrical, Engine · GA

It is this issue. I just bought my truck at 83000 miles and toyota would not fix it since it is 3000 miles over the emission warranty.

Filed Jan 31, 2023 · Fuel system · TN

We were recently advised our 2017 Tundra needs a new fuel pump because it is not getting enough compression. We were told the 2018 Toyota Tundra and many other vehicles made by Toyota have been recalled for this exact same issue we are having but there have not been enough complaints about the 2017. Well here’s a complaint. I have to pay for a fuel pump known to be bad by Toyota but since enough people haven’t complained about a problem they are aware of isn’t fair. Please put my complaint in so something might be done about this.

Filed Jan 2, 2023 · Fuel system · NM

Fuel Pump failed. Vehicle is currently at dealership awaiting 2+ week repair. Currently available to inspect. Failure began while driving. Caused misfire in cylinder 1, caused electrical fault that disabled traction control. Potential to leave the vehicle inoperable on the roadside poses a safety risk. Toyota dealership in possession states "START WITH FUEL PUMP, REPORGRAM ECM PER TSB AND RELEARN FUEL DENSITY FOR ALCOHOL CONTENT FLEX FUEL VEHICLE, OUT OF WARRANTY FOR TSB" Toyota dealership is the only entity to perform any inspection. There were no warning lamps or messages related to the fuel system. Check engine light and message stating "Traction Control Off" appeared while driving the vehicle. After limping the vehicle home, the vehicle would not start.

Filed May 10, 2022 · Fuel system · AR

I believe my Tundra has an emissions problem that Toyota will not cover. The FUEL TANK ROLL OVER VALVE is stuck. I believe this is a hazards condition. Toyota say the fuel tank will have to be replaced and not under warranty. Truck was purchased new by me and has 38887 miles.