- Faulty Oil leak
- Faulty Oil pump
- Faulty Intake valve control solenoid
- Engine Light ON (or Service Engine Soon Warning Light)
The CVVT (Continuously Variable Valve Timing) system is installed to the chain sprocket of the exhaust camshaft. There is no variation in valve timing of the exhaust cam because the exhaust camshaft is driven by the timing belt. The timing of the intake cam is varied by the relative operation the CVVT vane to the housing. This system helps the engine decrease exhaust gases and increase engine power and fuel economy by changing the valve open/close timing of the intake camshaft.
2001-2003 Hyundai Elentra valve location