Part 7/9:
With the engine temperature in check and the owner ready to start the vehicle, Chris is keenly aware of what to observe. Any smoke emerging during startup can signal significant problems such as worn piston rings or head gasket leaks. Noticing the engine’s idle is equally important; it should run smoothly without excessive vibration or revving.
Once the engine is running, Chris checks for leaks again—this time under pressure, as they are often revealed while the engine operates. Further observations include listening for noises that could point to internal mechanical issues.