Can a car still run with one less cylinder?

1 Answers
MayaRose
07/23/25 8:35pm
If one of the four cylinders has insufficient compression, the engine can still start. If the compression loss is relatively minor, the starting process will be more difficult. In more severe cases, the engine will be completely unable to start. Causes of insufficient engine cylinder compression: Excessive wear of the cylinder or piston rings, as well as misalignment, sticking, or breakage of the piston rings, can lead to insufficient cylinder pressure. Prolonged exposure to high temperatures can cause the piston rings to lose elasticity, failing to seal the piston properly, which also results in insufficient cylinder compression. Effects of a missing cylinder in a diesel engine: If a four-cylinder engine has one cylinder not working, it disrupts the originally balanced setup, leading to increased vibration and noise. At idle speeds below 900 rpm, the vibration becomes very noticeable. Diesel engines are already prone to cylinder explosions, and missing one cylinder makes this more likely because the fuel injection timing is less precise under unbalanced conditions, increasing the risk of cylinder explosions.
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