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Loud tappet noise after servicing

Asked by Lucy

Two months ago I bought a 2011/2012 Kia Cerato hatchback that had been unregoed for nine months while the owner was overseas.

The car has got 70,000 km on the clock, is in great condition, the engine was so quite I could hardly hear it, but after buying it I checked the oil and it was black, so I changed it with 5W-30 full synthetic oil and filter all recommended by Kia. When I started it there was loud tappet noise that was not there before, so put tappet quiet in the oil, but still made the noise, after two weeks I added engine flush, drained it out and put in 5W-30 full synthetic oil plus tappet quiet stuff. But it’s still making a loud tappet noise.

Can the tappets be adjusted, or is this the usual sound of this model?

Answered by CarsGuide

8 Jun 2018 Graham Smith

The tappets are not adjustable, and it’s not normal that they are noisy. It’s hard to know what has happened as a result of it standing for so long. Have a mechanic check the tappets.

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