2017 Toyota Tacoma fuel system problems

Filed Jun 4, 2026 · Engine, Fuel system · CA

Truck has 116k miles, started losing power and acceleration diminished. CEL and Trac Off light came on. Pulled over twice after experiencing same issue. Took to mechanic and diagnostic code P0301 (cylinder 1 misfire). Replaced 6 spark plugs to be safe, and replaced broken coil in cylinder 1. Drove less than a mile and CEL came back on. Brought to dealership this time and they found a leak in the head gasket and noticed warping in cylinder 1, along with code P0301 still present. They reported back to me stating it needed a machinist to resurface the the cylinder head, that the repair is mechanical. Even outside of warranty this fix should not be costing $13,000. The truck has been properly maintained for the past 9 years, all oil services and replacing any wear and tear items. Mechanical (warping) is manufacturing issues.

Filed May 21, 2026 · Engine, Fuel system · 75,000 miles · HI

The contact owns a 2017 Toyota Tacoma. The contact stated that while driving, the engine revved lightly. Over time the vehicle began to lunge forward, and the revving had become more intense. The RPM increased and revved. While reversing, the vehicle lunged. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed that the failure was due to the map sensor and throttle body. The vehicle was repaired, but the failure recurred. The manufacturer was not notified. The failure mileage was approximately 75,000.

Filed May 1, 2026 · Fuel system · LA

Vehicle stalled on highway bridge. Took to mechanic shop. They put the diagnostic code machine on and the code indicated fuel pump failure. Toyota does have a recall notice for the year, make, and model of my vehicle. But not showing on my VIN.

Filed Nov 6, 2025 · Fuel system · FL

Fuel leak at the fuel lines at the rear connection near the fuel tank, drivers side rear.

Filed Sep 17, 2025 · Fuel system · OH

Truck does not accelerate fully when I hit gas pedal. The truck stalls and my gas consumption is off.

Filed Aug 7, 2025 · Fuel system · AZ

I was driving my 2017 Toyota Tacoma and I my car suddenly was lurching and running rough. I had to put on hazards on a main road and pull over immediately and was not even able to let it run for air conditioning. It was 108 degrees out that day, waited for 1 hour 30 minutes in heat. Had truck towed to mechanic that stated my fuel pump was bad and there was a federal mandate recall on this. I have the paperwork for this (attached), when I called dealership they said it was not covered so I called advocate for Toyota that stated my truck was built in June and the mandate was only for September of 2017 and forward. So I have the exact same problem that they have a federal mandate to fix but won't fix mine. If I had been on the freeway I could have been killed. I have attached estimate to fix.

Filed May 19, 2024 · Engine, Fuel system · CA

2017 Toyota Tacoma double cab-V6 with 62K approx miles. On or around April 29th 2024, I was traveling in this truck when there was a sudden and complete loss of power, two check engine lights came on-The "trac off" light and the check engine light came on. I needed to pull over immediately for safety. I ended up driving the vehicle to the Toyota dealership in limp mode. The vehicle has sat at Tustin Toyota now for weeks with the Toyota dealership initially suggesting that a ACIS Flap broke off inside the intake manifold of the car. This was replaced and the vehicle is still providing the same alarms and still in limp mode. The initial fix(whihc did not fix the problem was a full replacement of the intake manifold). Now the dealer is suggesting that a piece(s) broke off the intake manifold and ended up inside the engine so now dealer is recommending and entire engine break down to attempt to further diagnose the situation. Again it looks to be a complete failuure of the ACIS system and the intake manifold. This problem has presented a EXTREME safety issue due to comp[lete loss for power initially then truck sits in LIMP Mode. Very dangerous!

Filed Mar 18, 2024 · Fuel system, Transmission · HI

The Tacoma still has only 10,000 original miles. We yearly replace the oil when we have our annual vehicle inspection. The truck has been trouble since the beginning. Early on I noticed when going downhill, the automatic transmission seems to slip when applying the gas. I have taken the truck back to the dealer in Kona to be told that it is not part of the rear end differential recall some years ago. I asked them to make a notation of this should the transmission or rear end differential fail in the future. Recently, we received an informational letter from Toyota regarding something about a possible faulty high pressure fuel pump. I made an appointment at the dealer and since I was there asked them for tire rotation, oil change and annual vehicle inspection. I explained to the service writer that I still believe there is a rear end or transmission problem. At first, she said, the recall was never done and later said it was done. More importantly, I have been smelling gasoline when I exit the truck although I see no visible fuel on the ground. I believe that this is related to the fuel pump issue which I received the letter from you. I was told several hours after I dropped off the truck that the fuel smell was not related to the letter I received.

Filed Dec 8, 2021 · Fuel system · SC

I went to the gas station to fill up my tank and once I was done. I had trouble closing my fuel filler door. Fuel filler door is now broken and won’t close at all.

Filed May 4, 2021 · Fuel system · 95,000 miles · WA

The tach shows the engine is bouncing all over the place which is especially evident when idling, but also noticible while in motion. I believe my truck should have the fuel pump replaced. The engine rpms jump all over when driving, when backing up or just rolling without pressure on the gas pedal, the truck jumps & drops in speed. This has been happening for some time now. We have tried adding detergents & using better quality gas but it doesn't seem to help.