Billman250

Leave the camwheel bolt alone, post a sound clip if u like.

superchargedk20

A howling? Do u have an aftermarket intake? They make a "howling" humming sound at idle

bgoetz

I do, but it isn't that, this noise is directly from the front of the VC.

hapwn2220

i just installed mine the moment i got back from a underway, annnnnnnd the rattle is still there. sometimes it would go away when i’m at idle but most of the time the rattle is there. what do i do ? i followed the steps carefully all but one, i don’t have a tool that can measure pounds. is that the case on why it’s rattling still or do i need a readjustment on my chain itself

Chuck S

2006 and later engines commonly have tight valve clearances -- which are quieter than loose clearances that clatter -- so my guess at this distance is it ain't the valves unless they're hypertight. The data when you measure the clearances will be valuable.

-- Chuck

Billman250

Bolt torque has nothing to do with your noise.

Post a sound clip of the noise. 4 feet away from the front of the car, hood closed. Let’s see if it’s chain noise, or something else.

hapwn2220

i just took it to the shop and they’re telling me the rattle is from the catalytic converter... are they right ???? help

Billman250

Wow that’s pretty far off from TCT noise.

Yes, cat rattle very common problem.

hapwn2220

i thought it was the chain and that i had to get a new one. so are they right ?

Billman250

Bang on the cat flange with a rubber mallet, see if it rattles. I’ve seen it many times.