So my 2011 Prius sat for a year and a half because of a cracked cylinder head. I finally got around to remove the old cylinder head And found coolant in the cylinders I took the head to a machine shop and found out that it was cracked. I replaced it with a cylinder head that I found at a junkyard. Now that I have everything back together, it will struggle to crank over and then just die after a couple seconds. When I try and start it again, it won’t crank at all, but I can hear it clicking. If I let the car sit for several hours, it will try and crank again, but just once. I have to let it sit for several hours again before it tries to crank again. I have kept the 12 V battery charged and have had it checked. It is a good battery. After it cranks once I have disconnected the 12 V battery and let it sit for 10 minutes. When I reconnect battery it still won’t crank.I’ve replaced plugs and the ignition coils were new when I stopped driving the car. Any suggestions would be helpful. Just to give you idea what I’ve done so far. I put a new timing chain in it, I have replaced the fuel pump, and I’ve checked to see if water has made it back into the cylinders, it has not. It did try and crank when I had the plugs out of it, but it only does it the one time like I described above. I am getting four permanent codes. P0117, p3190, p3191, and p0352. Thanks in advance.
Sounds like starter failure to me. I'd address that first. Did you get the compression tested after replacing the head?
are you addressing the p0352? the others just saying engine fails to start and low coolant temp. maybe the coil harnes is damaged or disconnected
just to be sure that you know, the hybrid battery cranks the engine, and if you keep trying to start it, you may damage the battery by low voltage.
???? If coolant sat in the cylinders, that is not good. And your hybrid battery is likely almost dead. It's not strong enough to turn the engine over, or fast enough to start the car. Charging the hybrid battery should be the first thing to do. It is likely you don't have all the connected connected properly, the connection could be corroded. You said the car sat for a year, NOT good for electrical connections, or batteries. And since the hybrid battery is practically head, you're not getting enough power to run everything. What is the voltage of the 12v battery? There is NO STARTER on a Prius!!!!!
did some leg-work for you, copy-and-paste of googles ai responses, to “code + toyota”: P0117: The Toyota P0117 code indicates a low voltage reading from the Engine Coolant Temperature (ECT) sensor, meaning the engine's computer is receiving a false or incorrect temperature reading. This can lead to various issues, including hard starts, rough idling, and even hard acceleration. P3190: The Toyota P3190 code indicates "Poor Engine Power." This means the engine is not producing the expected power output, and it can be caused by various factors like fuel system issues, airflow problems, or sensor malfunctions. In a hybrid vehicle, this can also lead to the hybrid system compensating, potentially overloading the HV battery and causing premature degradation. P3191: The Toyota P3191 code indicates that the engine is experiencing repeated start failures. This means the engine is not turning over and starting properly. The code is often linked to issues within the hybrid system, potentially impacting the hybrid battery's health. P0352: The P0352 code, meaning "Ignition Coil B Primary/Secondary Circuit Malfunction," in a Toyota indicates a problem with the ignition coil for cylinder number two. This could be due to a faulty coil itself, damaged wiring, or an issue with the Powertrain Control Module (PCM). The result can be a rough-running engine, misfires, and the check engine light illuminating.
Really dumb question; that cylinder head from the junk yard - was it properly and professionally checked out before you installed it. Car crashes tend to screw things up and gen3 power trains aren't the most reliable out there. Add to that coolant pooling on top of the pistons. How are the piston walls??? Waiting a few hours is a good sign that the traction battery is dead; the voltage is taking time to recover. If you can get the car started again, you'll probably get the red triangle. Sorry...
