08 Trailblazer 4.2
08 Trailblazer Base Model - What is the best non-factory brand of VVT Solenoid. I'm looking at Dorman but I see Holstein & NGK have that new upgraded(?) wire wrap around the screens.
Maybe I read that part incorrectly & they are steel wire wrapped over the screens.I've never heard of a VVT that uses copper wire wrapping on the screens. Copper is not as strong a steel/stainless steel, and it might even be somewhat more prone to oxidation in an engine oil environment.
I do know that the better manufacturers do use copper wire in the solenoid portion of parts as copper is electrically superior than steel or aluminum wire. Most relays and solenoids use copper wire for the coils that are used to create the magnetic field that makes the relay pull in the contacts or to make the solenoid push something in or out or to twist.