What is the difference between your car making a knocking sound and a ticking sound?

Answer

There is probably too much clearance between the rods and the crankshaft causing the motor to knock. If this is the case you need an overhaul job on the engine. The clicking sound is probably cause from using too low octane gas or your firing is set a little too high.

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answer knocking sound comes from worn bearings and parts in lower engine ticking comes from tappets, or more specifically the hydraulic lifters in engine ticking sound can also be a small exhaust manifold leak

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