02 silverado engine knock - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Rudy67chevy · 04-19-2009, 07:27 PM

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

**DA68** · 04-19-2009, 07:45 PM

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

PHAT TONY · 04-19-2009, 07:48 PM

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

Rudy67chevy · 04-19-2009, 08:04 PM

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.

Rudy67chevy · 04-19-2009, 08:06 PM

Thanks DA68 and phat tony

jkade · 04-19-2009, 08:57 PM

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.

Rudy67chevy · 04-19-2009, 09:27 PM

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

Longhorn Man · 04-19-2009, 10:14 PM

thread moved to the 99 - 08 board.

Huck · 04-20-2009, 06:27 PM

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

jkade · 04-20-2009, 07:55 PM

Quote:

Originally Posted by Rudy67chevy

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

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?

**DA68** · 04-20-2009, 10:37 PM

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.

04-19-2009, 07:27 PM	#1
Rudy67chevy rudy67chevy Join Date: Jun 2007 Location: Cali Posts: 154	02 silverado engine knock Does any other member here... have a 02 silverado with engine knock noise? with cold or warm engine

04-19-2009, 07:45 PM	#2
DA68 Registered User Join Date: Oct 2006 Location: Ohio Posts: 967	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

04-19-2009, 07:48 PM	#3
PHAT TONY Registered User Join Date: Aug 2008 Location: Red Deer ab canada Posts: 1,250	Re: 02 silverado engine knock Short-skirt piston noise; they "rock" in the bore some and make noise.

04-19-2009, 08:04 PM	#4
Rudy67chevy rudy67chevy Join Date: Jun 2007 Location: Cali Posts: 154	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.

04-19-2009, 08:06 PM	#5
Rudy67chevy rudy67chevy Join Date: Jun 2007 Location: Cali Posts: 154	Re: 02 silverado engine knock Thanks DA68 and phat tony

04-19-2009, 08:57 PM	#6
jkade Senior Member Join Date: Nov 2005 Location: AL Posts: 2,517	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.

04-19-2009, 09:27 PM	#7
Rudy67chevy rudy67chevy Join Date: Jun 2007 Location: Cali Posts: 154	Re: 02 silverado engine knock maybe a tick? when i accelerate, you can hear this vehicle 100 feet away."

04-19-2009, 10:14 PM	#8
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: 02 silverado engine knock thread moved to the 99 - 08 board.

04-20-2009, 06:27 PM	#9
Huck Senior Member Join Date: Jun 2001 Location: Shelbyville, KY Posts: 3,261	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

04-20-2009, 10:37 PM	#11
DA68 Registered User Join Date: Oct 2006 Location: Ohio Posts: 967	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.



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