Vehicles using 2.5 DOHC engine list:

Engine 2.5 DOHC in Chevrolet Daewoo Evanda/Epica models commonly faces issues like timing chain wear, oil leaks, and ignition coil failures. Diagnosis includes listening for rattling noises indicating timing chain stretch and checking for oil spots under the vehicle. Preventive maintenance involves regular oil changes with recommended grades to avoid sludge buildup and timely replacement of spark plugs and ignition coils to ensure smooth running. Solutions include replacing the timing chain and tensioner if worn, fixing oil gasket leaks promptly, and swapping faulty ignition coils. Regular inspections and adhering to service intervals significantly enhance engine reliability and longevity.