when the electric motor start the gas engine, there is a rattle and vibration that happens for couples of seconds and goes away. a knockings or ratcheting or grinding sound like. it's seems it coming from the passenger side or some sort. this happens when the car start cold or sometime when the car is hot, sitting a parking lot and the electric motor start the gas engine, i will hear this sound and vibration. there are times, if i stop at a red light or stop , and light turns green, i press the gas pedal, the car will rough idle or starving or choking, sputtering or loss of power symptom, after that episode it will start running normal. There is no engine light or ecu codes. have you experience this before, how did you fix it. Your guidance and wisdom is welcome. 2016 prius C thank you.
How many miles and has all required OEM maintenance been performed; per OEM manual? You should have pending P0300 misfire code, if you scan the car.
Spark plugs, coils, air leak, throttle, fuel and more. If you had taken readings while the engine was running, it would have given a more detailed explanation of the engine rattling. A visual inspection through the spark plug wells inside the combustion chambers for coolant leakage using an endoscope is also applicable. In the morning on a cold car.
What’s the miles? Prius c is more-or-less a gen 2 engine IIRC, and nowhere near as prone to head gasket failure, but could happen. Check codes. If there’s a specific cylinder misfire code (denoted by P0301 through P0304), swap coil/plug from offending cylinder with another, see if code changes accordingly, to confirm or eliminate it’s coil/plug problem.
Consider purchasing diagnostic tools. These can be special programs for a laptop, OBDII adapters, cables-transition devices. A phone with programs and adapters for a phone can also be used. They will help in case of diagnosing errors that suddenly appeared. Gen2 OBD2 app review | PriusChat The choice is yours. It is better to do this preventively than to run around a faulty car later and ask on the forum what happened.
hi? i am still experiencing this problem, i am working on change the injectors to see if this help solve the shaking.
They are like the 1.8L Gen 3/4/V engine design being that the Prius C 1.5L has the dreaded EGR and related Intake Circuit. Thankfully not the PCV Valve design placed down below that can use a reroute. I'd suspect by the sound of the situation, might be like the hybrid 1.8L design and need the Intake, EGR and PCV Valve circuits inspected and more than likely replaced or more cost effectively if can... cleaned. The sooner the better. Good to check like noted prior in regards to fuel and fire parts as well.
Have you cleaned the Intake and EGR Circuit at least? Like the EGR ports on the intake and the EGR Valve and Cooler at the very least yet or throughout it's life routinely? Guessing is a must do religiously like the water pump and thermostat on the later gens. I'm revisiting slightly the Prius C engine conversion so to swap into a Gen 2 as well as parts interchange. Mainly will have the electric water pump to deal with additional circuitry to include, though appears far easier to use a modified slightly gen 2 intake so the water pump fits and use the gen 2 exhaust so completely exclude the EGR circuit.
That’s maybe all true, but there are precious few Prius c head gasket failures here. Maybe some differences at play, or Prius c owners are just a resourceful/stoic lot, lol.
