Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Hyundai Tucson Ultimate, FWDFACTORY OEM SERVICE PROCEDURE
Repair Procedures: Adjustment
NOTE:
- When the electric E-CVVT assembly is replaced or remounted, make sure to use the additional feature menu on the KDS/GDS diagnosis equipment and reset the learned value.
- When the learned value for electronic cam position is erased, start learning the cam position while cranking. When it is completed, engine is started.
- Cranking should be repeated for maximum 2 to 3 for learning.
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.