Ticking noise is heard coming from the car engine during engine operation.
Troubleshooting car problems of ticking noise from engine
Ticking noise from an engine while running indicates engine that is not fully lubricated. When a car engine is not fully lubricated, it can cause by a two reason, the engine is either lacks oil or has a low oil pressure. To find out the real cause of the ticking sound problem do the following:
1) Check the Engine Oil Level. Park the vehicle on level ground and check the engine oil level. The engine oil level must be checked before the engine is started or after it is park overnight. If the engine lacks oil then the ticking noise is cause by poor engine lubrication. If the engine oil is enough then the poor engine lubrication cause can be disregarded, so proceed to the next check item.
2) Check the oil pressure. To check the oil pressure is low, start the engine then observed the oil warning light located on the car dash board. When the oil warning light came on while the ticking sound occurs then this causes the problem which is also poor engine lubrication. Oil pressure is an indication if the entire engine key components receive enough amount of oil for lubrication if the oil pressure is low some engine components will not receive enough amount of oil and will create ticking noise or tapping noise that can be heard. Now, why is the oil pressure low? The only reason can be a faulty oil pump.
However, if the oil pressure is enough then the engine receives enough amount of oil. In this case the problem can cause either a loose valve or leaking exhaust manifold. That kind of problem can also cause a similar ticking noise, a loose valve slap against the rocker arm while the engine runs thus causing a ticking noise. Leaking exhaust manifold causes the exhaust gases to leak thus causing a ticking sound on the engine.
Possible Cause of Ticking Noise from Engine
Poor Engine lubrication, loose valve or leaking exhaust manifold
How to fix Engine Ticking Noise
If the problem is poor engine lubrication due to lack of engine oil, just add enough amount of oil on the engine.
If the problem is poor lubrication due to low oil pressure, bring the car to the shop and have the oil pump check by a mechanic for any problem. Sometimes the problem is just a clogged oil pan that causes the oil pump to pump enough oil to the engine.
Read more: Diagnosing Car Engine Problems