* Hydrolocked engine: Water in the cylinders can cause the engine to hydrolock, preventing the pistons from moving freely. This can lead to a variety of noises, including ticking, knocking, and even a grinding sound. If this is the case, attempting to start the engine will likely cause significant damage.
* Damaged lifters: Water can damage hydraulic lifters, causing them to stick or fail. This often manifests as a ticking noise that varies with engine speed.
* Damaged rocker arms: Similar to lifters, rocker arms can be damaged by water intrusion, leading to a ticking or tapping sound.
* Water in the oil: Water in the engine's oil can lead to various problems, including increased wear on engine components and a ticking sound due to insufficient lubrication. This often presents as a milky-looking oil.
* Exhaust leak: While less likely directly related to water submersion in the engine itself, water may have corroded or damaged the exhaust system, causing a leak which could create a ticking sound.
* Damaged distributor: Although less common, water can penetrate the distributor cap and cause electrical issues which may manifest as a ticking or clicking sound.
* Loose components: The force of the water might have dislodged small parts, leading to a ticking sound from something vibrating against another part.
What to do:
Before attempting to start the engine, do not crank the engine over. This is crucial to avoid catastrophic damage if it is hydrolocked.
1. Check the oil: Inspect the oil level and condition. Milky or foamy oil indicates water contamination.
2. Check for water in the air intake: Look for standing water in the air intake system.
3. Inspect the distributor cap and ignition components: Check for water intrusion and corrosion.
4. Have it towed to a mechanic: Given the potential for serious internal damage, it is best to have a qualified mechanic diagnose and repair the problem. They have the tools and expertise to assess the extent of the damage and properly address the issue.
Ignoring the problem could lead to significantly more expensive repairs or even a need for engine replacement. Professional diagnosis is highly recommended in this situation.
