2 PCS Intake & Exhaust Camshaft Position Actuator Solenoid Control Valve 12655420 12655421 917-215 917-216 for GM Chevy Cobalt Malibu G5 G6 HHR Buick Pontiac 2.0L 2.2L 2.4L
- ...e/exhaust camshaft in an advance or delayed position, the valve can be opened and closed in advance. Combustion will be more fully, exhaust will be more thorough.So as to achieve the role of fuel saving, the engine can work better..
- Replace -when these situations occur, you need to replace the timing solenoid valve: check that the engine indicator light is on, the engine oil is dirty, the engine idling is unstable, and the fuel efficiency is reduced.If the VVT is not working properly, your engine will perform noticeably worse..