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Are you having problems with your 1992 Hyundai Sonata? Let our team of motoring experts keep you up to date with all of the latest 1992 Hyundai Sonata issues & faults. We have gathered all of the most frequently asked questions and problems relating to the 1992 Hyundai Sonata in one spot to help you decide if it's a smart buy.
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It's most likely to be a sticking tappet or tappets and it takes time to pump up once you start the engine. In the three days the car was sitting the oil has had time to drain back into the sump, so it will take a short time for the oil to be pumped up through the engine again. Have a mechanic listen to the engine for you to determine where the knock is coming from, or change the tappets.