Vehicle Details

2010 Prius with a head gasket leak. Check engine light is on, with the code P0301, indicating cylinder 1 misfire. Everything else works.Depending on how long the engine's been off and how much engine coolant collects in the cylinder 1. The engine can run very rough on starting up. Let the engine idle (for about 2 minutes) to clear the coolant out of the cylinder, and the engine will run smoothly after that. Once the coolant collected in the cylinder is cleared, everything runs smoothly as normal...