Generation III Internal Engine 1997-2006 LS1 | LS6

Sponsored by:

Knock?

Reply Subscribe

Search this Thread

Old

Mar 10, 2004 | 06:26 AM

#1

Thread Starter

On The Tree

iTrader: (42)

Joined: Jan 2004

Posts: 190

Likes: 3

From: MO

Default

Knock?

At around 2600 rpms my car has a knock. or what sounds like a knock. After you get past that area nothing. What is it?

Old

Mar 10, 2004 | 08:20 AM

#2

LS1TECH Sponsor

iTrader: (2)

Joined: Jul 2003

Posts: 7,986

Likes: 3

From: Clermont, FL

Default

hard to say get it scanned using autotap and see if theres any knock retard and then go from there

Old

Mar 10, 2004 | 08:35 AM

#3

TECH Apprentice

Joined: Jun 2002

Posts: 372

Likes: 0

From: Chester, VA

Default

Yeah and figure it out before you spray it again!

Old

Mar 10, 2004 | 08:52 AM

#4

TECH Regular

Joined: Feb 2003

Posts: 451

Likes: 0

From: Spring Hill, TN

Default

Is this in any gear? Any temperature?
Have you noticed oil consumption?
What gas are you using?

Old

Mar 10, 2004 | 12:07 PM

#5

Thread Starter

On The Tree

iTrader: (42)

Joined: Jan 2004

Posts: 190

Likes: 3

From: MO

Default

Yeah at any gear. Yes there is some oil consumption, but isn't that normal when you rod it?

Old

Mar 10, 2004 | 04:49 PM

#6

TECH Regular

Joined: Feb 2003

Posts: 451

Likes: 0

From: Spring Hill, TN

Default

I'm assuming it's pinging. With our LS1s the cause (when using premium gas) is generally oil contamination of the mixture. Stop the oil consumption and you stop the pinging.
The most common cause of oil consumption is sucking it in through the PCV valve. The easiest fix is a 4 quarts of 10/30 and 2 quarts of 15/45 (or similar thick stuff).

This should stop oil consumption and if that's the reason for the pinging, it will also go away.

Reply Subscribe

First
Prev
1 / 1
Next
Last

All times are GMT -5. The time now is 04:50 AM.