02 silverado engine knock
 

Does any other member here... have a 02 silverado with engine knock noise? with cold or warm engine

Re: 02 silverado engine knock
 

Doesn't sound like we have the same issue, but my 01 GMC has a low end tick/slight knock when cold. Goes away when warmed-up. I thought lifters but have read that there is a "cavitation" issue with the oil pumps. It is not supposed to be detrimental and GM isn't doing anything about it.
Try Googling "02 Silverado engine knock" and you'll be amazed at the various blog sites that come up. Actually, it is kind of depressing when you read about the numerous problems that some people have been having.
I read two blogs where guys have added the Lucas engine oil treatment and the ticking noise has gone away. Hope this helps

Re: 02 silverado engine knock
 

Short-skirt piston noise; they "rock" in the bore some and make noise.

Re: 02 silverado engine knock
 

cavitation??? the noise does go away when i drive for a few minutes. when i stop at the store for 5 to 10 min. i start the truck back up, and starts ticking again.

Re: 02 silverado engine knock
 

Thanks DA68 and phat tony

Re: 02 silverado engine knock
 

Does it tick or knock? These motors are notorious for the ticking sound. My brothers 05 had a lifter come apart a few weeks ago and he replaced his 5.3 for $450 from LQK parts.

Re: 02 silverado engine knock
 

maybe a tick? when i accelerate, you can hear this vehicle 100 feet away."

Re: 02 silverado engine knock
 

thread moved to the 99 - 08 board.

Re: 02 silverado engine knock
 

the vortec's from 99 on have that problem--gets worse over time and in cold weather. Does not appear to affect performance or engine life. You should NOT hear it once warm up and driving. huck

Re: 02 silverado engine knock
 

That really doesn't sound normal. Have you done a cam change? I had one that sounded like a pea thrasher after I put a cam in it. Do you get any metal shavings in the oil?

Re: 02 silverado engine knock
 

That's what I said - "cavitation"?
There are several blog sites that talk about this issue and it is widespread.
I just purchased the Lucas oil treatment and am waiting for next oil change, to add.