2017 Toyota Tacoma engine 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 Feb 4, 2026 · Engine · KY

Have had engine issues such as stalling, rattling, limp mode, rough idling and engine missing. Have had repairs done but continues to have major issues where it is not functioning properly.

Filed Nov 21, 2025 · Engine, Transmission · IN

I was driving on the highway when my vehicle suddenly lost power. The engine light and traction control light came on, and I lost power, and the engine started sputtering. I had to pull off to the side and put on hazards. My Tacoma would only drive about 25 MPH after this happened. Based on a quick search, this is a very common problem in 3rd-generation Tacomas!

Filed Aug 12, 2025 · Engine · 123,000 miles · FL · fire

The contact owned a 2017 Toyota Tacoma. The contact stated that while the vehicle was parked and unoccupied, he was inside a client's home, and the contractors who were working on the client's roof came inside the client's home and alerted the contact that his vehicle was on fire. The contact stated that upon exiting the client's home, the contact noticed the fire coming from under the front hood of the vehicle. The fire department was called. The fire department extinguished the fire. The vehicle was towed to the contact's residence. The vehicle was then towed to the insurance company for investigation. Then the vehicle was towed to the dealer for manufacturer investigation. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 123,000.

Filed Dec 30, 2024 · Engine · MI

A rear coolant leak crossover pipe rear of engine top 14 hour reapair . No warning signs just an oder local repair shop

Filed Nov 25, 2024 · Engine · 160,000 miles · PA

The contact owns a 2017 Toyota Tacoma. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated. The contact, who is an independent mechanic, diagnosed the vehicle and retrieved a DTC code for a cylinder #3 misfire. The contact swapped the spark plugs and the code indicated misfires in four cylinders. The contact stated while inspecting around the top intake manifold, the contact noticed that the flap used to regulate the air to the engine had detached. The contact was afraid of driving the vehicle and was concerned that the unknown plastic piece could cause engine failure, was also detached. The dealer was made aware of the failure and advised the contact research the instructions. The manufacturer was not made aware of the failure. The failure mileage was approximately 160,000.

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 Jan 5, 2024 · Engine · LA

Rear coolant bypass joint leak. This is a plastic defective pipe that has leaked on my truck and thousands of others! The dealership wants 2000 dollars to repair their cheap mistake! I have pictures and invoice to upload, but the site will not allow it.

Filed Dec 28, 2023 · Engine · 101,000 miles · OH

The contact owns a 2017 Toyota Tacoma. The contact stated that while operating the vehicle, the check engine and traction control warning lights remained illuminated. The vehicle was taken to the local dealer who diagnosed that engine cylinder #2 was faulty, and the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 101,000.