I have an issue that I need help with. My 2009 Jeep Patriot 2.4L is not starting after a rebuild of the cylinder heads about a month and a half ago. It was driving fine then the engine died, throwing 4 codes for the secondary ignition coil circuits. I have replaced the ignition coil boots, spark plugs, crankshaft positioning sensor, and the serpentine belt after the lastest malfunction. The engine cranks and acts like it wants to turn over, but no go. I've checked the fuses and relays, and there appears to be no corrosion or faulty wires. Tried jumping, didn't catch. Battery is good. I'm at a loss. Any help (other than "you shouldn't have bought a Jeep) would be greatly appreciated.