21hg Vacuum Reading
Posted: Tue Jul 25, 2006 8:27 pm
So I did a Vacuum check on my intake manifold and I got a reading of 21Hg and the needle was fluxing outta control, Im thinkin that its my valve guides that are worn or maybe a sticking valve or something, Im still clueless to what the knocking sound could be. Does anyone think that if could be a rod or something, bc I hope not. I dont really hear the knock when it idles, but if I barely hit the gas I can still hear it and its Loud almost like its coming from my pulleys. If its head related, then its good, bc Im still covered under warranty.