Okay, so for the past month or so, I've had this annoying rattle/knock which I believe to be something from the VTC system. Video for reference: [ http://www.youtube.com/watch?v=poe5BQA-4QY ]Unplugging the solenoids makes no difference in noise, but grounding them makes it pretty much go away. I've tried replacing both VTC Springs, and the noise was subdued but still there. Took it to a master tech, he found out the intake cam gears were fine, but the driver side solenoid doesn't work (piston doesn't extend outwards). So my thinking now is replacing the solenoid will remedy the noise, however he is saying replacing the solenoid will require pulling the motor and it'll be expensive. From what I've researched, nobody has had to pull the motor, at the most just the plenum. Is there a way to replace the driver's side solenoid without pulling the motor? Sorry if this has been asked before, difficult to find information on this.
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