Here's why:
* Fuel line freeze-up: This means the fuel in the lines has solidified due to extremely cold temperatures. This prevents fuel from flowing to the engine.
* Engine turning over: For an engine to turn over, it needs fuel and air to ignite.
Since a fuel line freeze-up prevents fuel from reaching the engine, the engine cannot ignite, and therefore will not turn over.
Important Note: Even if the engine *does* turn over, a fuel line freeze-up will prevent the engine from running.
