Vehicles using G4JP engine list:

Engine G4JP commonly faces issues like oil leaks from valve cover gaskets and timing chain wear leading to rattling noises. Diagnosis involves checking for oil seepage around the valve cover and listening for unusual engine sounds at startup. Preventive measures include regular oil changes with recommended grades to maintain proper lubrication and timely replacement of the timing chain tensioner around 100,000 km. Solutions for leaks involve gasket replacement, while timing chain problems require inspection and possible chain or tensioner replacement to avoid engine damage. Keeping the cooling system in good condition also prevents overheating, which can affect engine longevity.