Hyundai Tucson 2022 Problems

Are you having problems with your 2022 Hyundai Tucson? Let our team of motoring experts keep you up to date with all of the latest 2022 Hyundai Tucson issues & faults. We have gathered all of the most frequently asked questions and problems relating to the 2022 Hyundai Tucson in one spot to help you decide if it's a smart buy.

The dipstick is blowing out in my 2022 Hyundai Tucson diesel
Answered by David Morley · 24 Jan 2025

It sounds very much like there’s a blow-by problem with this engine. The pressure created by the combustion process is somehow getting past the pistons and into the crankcase, causing the dipstick to leave its tube and blowing oil all around the engine bay.

Blow-by is often caused by worn or broken piston rings or a damaged piston itself. But modern turbo-diesels are also prone to problems with their crankcase ventilation and emissions-control systems which can become full of gunk and not allow the crankcase to breathe properly. At which point, the same symptoms can occur.

A mechanic will be able to do some tests and determine what’s causing the pressure build-up inside the crankcase. If it’s internal wear, a rebuild may be required. But if it’s a build-up of crud inside the emissions-control systems, a manual disassembly and clean might be required. Either way, your car’s warranty might cover you for this, so the Hyundai dealer is your first port of call.

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