What Can Cause a Car Engine to Lock Up?

A car engine can lock up for a variety of reasons. Some of the most common causes include:

1. Lack of Oil

Oil is essential for lubricating the moving parts in an engine. Without oil, the parts will rub together and create friction, which can cause the engine to lock up.

2. Overheating

When an engine overheats, the metal parts can expand and seize up. This can cause the engine to lock up and stop running.

3. Broken Timing Belt or Chain

The timing belt or chain is responsible for synchronizing the movement of the crankshaft and camshaft. If the timing belt or chain breaks, the engine can lock up.

4. Hydrolocked Engine

A hydrolocked engine occurs when water enters the combustion chamber. This can cause the engine to lock up and stop running.

5. Seized Pistons

Seized pistons occur when the pistons become stuck in the cylinder bores. This can cause the engine to lock up and stop running.

6. Broken Connecting Rod

A broken connecting rod can cause the engine to lock up. This is because the connecting rod is responsible for connecting the piston to the crankshaft.

7. Failed Main Bearing

A failed main bearing can cause the engine to lock up. This is because the main bearing is responsible for supporting the crankshaft.

What to Do if Your Engine Locks Up

If your engine locks up, it is important to stop driving immediately. Continuing to drive with a locked up engine can cause serious damage to the engine and other components.

Once you have stopped driving, you should call a tow truck to have your car towed to a mechanic. The mechanic will be able to diagnose the problem and repair the engine.