2013 Toyota Sequoia Engine Problems

Your 2013 Toyota Sequoia's 5.7-liter engine is leaking oil from the cam tower on the left side, and the oil is dripping onto the manifold. This oil could potentially catch fire if not repaired, making the vehicle unsafe for long trips. The repair will likely involve replacing the cam tower gasket or seals to stop the leak.

Your engine's computer is incorrectly detecting high-ethanol fuel (E85) in your system even though you're using regular gasoline. This causes rough cold starts, rough idling, power loss, engine misfires, and poor fuel economy. You've had to return to the shop multiple times for the same problem, and recalibration fixes haven't permanently solved it. The fix will likely involve reprogramming your engine's fuel sensor calibration or replacing the fuel composition sensor.