thanks tJKrider, sorry I must have missed that. I've seen something similar to this on another vehicle, Basically crank pressure leaks out through the harmonic balancer seal and squeals as it vibrates. Sure wish there was a way to relocate that PCV. Looks like a major pain in the ass to replace.
Squeal from front of 3.6L
- Thread starter tJKrider
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thanks tJKrider, sorry I must have missed that. I've seen something similar to this on another vehicle, Basically crank pressure leaks out through the harmonic balancer seal and squeals as it vibrates. Sure wish there was a way to relocate that PCV. Looks like a major pain in the ass to replace.
Yeah that would explain why the sound comes from the front of the engine. I don't know the history of my PCV Valve since I purchased the vehicle used. It's probably the original one if I had to guess.
when you rotate the pulley it should fell clean and no resistance at all, remember there is a lot of pressure on these pulleys even the slightest rubbing like a grittiness.
I believe I have confirmed that it is indeed the PCV (valve). I used a hose to listen for the noise (ear plug in the other). The source of the noise was right in front of the PCV hose connection on the intake manifold. I pulled the PCV and cleaned it out with some Berrymann's B12 carburator cleaner, dried it with some compressed air and testing it by blowing through it in both directions. It whistles at the same exact pitch as the squealing noise. Here is my theory, the noise is amplified (echo) inside the intake manifold. I've ordered a new PCV from MoparPartsGiant.com. Keep in mind the loudest sound came from the intake by the PCV hose. My hose listening technique did not yield any amplified noise from any of the idlers or tensioner. This has to be it!