Lifter Noise???????

Reply Subscribe

Thread Tools

Search this Thread

Oct 26, 2007 | 08:59 AM

Steve Zamcheck

Thread Starter

Advanced

Joined: Jul 2004

Posts: 77

Likes: 0

From: sharon MA

Lifter Noise???????

My friend has a 2002 automatic C5 with 45,000 miles. He complains about lifter noise on cold start-up. I told him that is the nature of this engine. Am I right? Please advise.

Oct 26, 2007 | 09:37 AM

dankhts

Safety Car

Joined: Jun 2004

Posts: 4,986

Likes: 393

From: Stoney Creek Ontario

hmmmmmm... I don't think it's supposed to be that way - my '02 is at the stealership right now for the same problem, but on my car, the noise dosen't go away when it gets warmed up - the dealer told me there should be no lifter/valve train noise at all.... most of my friend's vettes are "noise free" in the engine.... I'm waiting to see if they fix it - still under warranty btw...

Oct 26, 2007 | 01:08 PM

GRUNIE

Drifting

Joined: May 2006

Posts: 1,608

Likes: 11

From: Aliso Viejo So. Cal.

Piston slap. Mine does the same thing on cold starts but goes away after a couple of minutes. Just give the car time to warm up before mashing the pedal.

Oct 26, 2007 | 01:21 PM

dgrant3830

Tech Contributor

Joined: Dec 2006

Posts: 10,962

Likes: 29

From: Van Buren Arkansas

Wounded Warrior Escort '11

The report you will get is "Lifters Bleeding Down When Cold". I know, it happened to mine a couple of years ago. You'll need to replace the lifters.

Oct 26, 2007 | 02:04 PM

Black 'n Tan

Burning Brakes

Joined: Dec 2006

Posts: 1,092

Likes: 0

From: Deerfield VA

St. Jude Donor '07

Quote:

Originally Posted by dgrant3830

The report you will get is "Lifters Bleeding Down When Cold". I know, it happened to mine a couple of years ago. You'll need to replace the lifters.

Hasn't Chevy had lifter leakdown problems since the 50's? YEASH!!!!!!!
My Dad's 60's Chevies sounded like Diesels when they started. My Corvette just has the usual piston slap noise when cold.

John

Oct 26, 2007 | 02:15 PM

99mallett

Le Mans Master

Joined: Feb 2003

Posts: 6,369

Likes: 73

From: The line waiting to see Santa Claus stretched all the way back to Terre Haute, and I was at the end, Indiana

St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18

Piston slap....very common, especially over 25,000 miles. When the pistons and the heads all reach operating temperature, all the dissimilar metals are expanded and "snug up". Should only take about one or two minutes to quiet. If it takes much longer, you may have some piston/ring issues to check out.

Oct 26, 2007 | 03:11 PM

Phanni

Le Mans Master

Joined: Jan 2004

Posts: 9,488

Likes: 1,743

From: Knoxville Tn

It's piston slap. similar, but different, sound.

Oct 26, 2007 | 03:13 PM

dgrant3830

Tech Contributor

Joined: Dec 2006

Posts: 10,962

Likes: 29

From: Van Buren Arkansas

Wounded Warrior Escort '11

Piston Slap will come from the bottom end and more than a second or two means there are larger issues. Lifters tapping will come from the top end and a tap sound rather than a deep knock.