Rod Knocking??
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From: Lake Balboa
Rod Knocking??
Recently my car (06' RevUp) started to knock pretty bad. Well I think it was "rod knock", not sure. It would sound like something loose or rattling coming from the plenum area. It wouldnt do it at higher rpms, instead betweem 2k - 3.5k. I noticed a vaccum leak coming from the top of the plenum. I was missing one of the top plenum bolts from when I removed my MREV and spacer. So I purchased a bolt, put that **** in there and drove to WCN. On my way there the "knocking" sounds went away and WCn could not verify or duplicate the noise. Everything seems fine now. Any ideas?? WOuld a mising top plenum bolt cause a problem???
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From: under the hood
Originally Posted by 06MagneticZ
Recently my car (06' RevUp) started to knock pretty bad. Well I think it was "rod knock", not sure. It would sound like something loose or rattling coming from the plenum area. It wouldnt do it at higher rpms, instead betweem 2k - 3.5k. I noticed a vaccum leak coming from the top of the plenum. I was missing one of the top plenum bolts from when I removed my MREV and spacer. So I purchased a bolt, put that **** in there and drove to WCN. On my way there the "knocking" sounds went away and WCn could not verify or duplicate the noise. Everything seems fine now. Any ideas?? WOuld a mising top plenum bolt cause a problem???
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From: Lake Balboa
I noticed it mainly happened when the rpms were coming down. If I kept the car at 3500 rpm's it would just sounds like a bunch of bolts rattling inside a tin can coming from the plenum area. Everything is fine now, but Im still worried about what that was. Do you think I may have ruined something by driving my car that way for about a week? That bolt pretty much took care of the issue and Nissan couldnt verify the problem. I cant duplicate it anymore either.
You said you were missing a top plenum bolt? I suggest you unbolt your top plenum and retighten in the order and specs that came with your mrev. This would make sure that you don't have any small leaks.
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From: Lake Balboa
Originally Posted by bugsbbunny
You said you were missing a top plenum bolt? I suggest you unbolt your top plenum and retighten in the order and specs that came with your mrev. This would make sure that you don't have any small leaks.
Originally Posted by 06MagneticZ
Yeah I still have to do that. I dont have the instructions anymore but I think I can download them from motordyne's website. What do you guys think though? Could it have been due to the vaccum leak coming from that missing bolt? I ran my car that way for quite some time and just now it became an issue.
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