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**Mark B** · 04-16-2004, 02:31 PM

"Normal to burn oil"....

I get mad everytime someone says that. It should never be normal.

**Rhode Island Red** · 04-16-2004, 02:48 PM

Originally posted by Mark B
"Normal to burn oil"....

I get mad everytime someone says that. It should never be normal.

same here.. I have seriously done my homework,... I assume due to the level of oil I burn it is more than the PCV system and it is the rings incorrectly gapped or cylinders out of round...

my best bet is I am now converting to 10W-30 synthetic.... heavier oil won't burn as easy... thus slow down the burning and escaping into intake via pcv system

let us say they would replace my rings... if you read the TSB procedure for it .. there is no wherein it where it says to re-hone the cylinder wall... so if you have and scratches or imperfections due to rings or whatever.. you could still be stuck with a path for the oil to esape and be burnt. given it is possible that the cylinders wall do not need this procedure... it seems any dealer I go to does not want to help me with an engine replacement nor any diagnostic beyond an oil consumption...mainly because GM has a fixed cost rate for warrenty repair procedures and the dealer doesnt like not making money... to be honest I would be quite scared to hand my car over to a dealer that mabe sees 1 LS1 engine every 2-3 years ... f-bodys are not seen often at NE dealer..

ends up I may as well save for that stroked and bored MTI 422 CI block

my money, effort, and frustration would be better spent this way

**Bond Hawk** · 04-16-2004, 03:30 PM

Check this out

Sounds like the same problem you are having, and he wound up getting a brand new LS1.

http://phpbb.firehawk.org/viewtopic.php?t=4219

**Bond Hawk** · 04-16-2004, 03:32 PM

New engine thread

http://phpbb.firehawk.org/viewtopic.php?t=4240

**jspeed97** · 04-16-2004, 03:33 PM

I have heard this issue brought up before in a LS1 forum... For the life of me I can not remember the explanation, but it was pretty long and made sense... So I'm not even going to try to explain. I have heard of Corvettes being brought in after the owners complained of the same thing... From what I understand, 1 corvette had a whole new engine put in... hard to believe ehh.... Anyway, I have heard of this many times before, but it does not happen on every car.... In fact, both LS1s I owned used only 1/2 a quart of oil between changings, but I'm sure that was from my aggressive driving style..(I used Mobil 1 5w-30). Never had any piston slap from what I could hear. This is also well documented in Australia as the top reason for new LS1 Monaro's being brought in to the dealerships... I will look around for that post I saw about this very issue....

**Rhode Island Red** · 04-19-2004, 10:51 AM

hmm I guess they tore his engine down and measured the bore ... but my aim is to convince any pontiac dealer to attempt even that

any TSB's out I can bring in to the dealer for them to check out? my warrentee expires Aug 25th?

**markd79ta** · 04-19-2004, 11:10 AM

OK, those guys are smoking crack!!! 1 to 1.5 quarts per every 3,000 miles on a new engine...that is insane whether it is an LS1 or not! My '77 K5 with 180,000 miles, 85psi of compression, and worn valve guides and seals goes through about a quart every oil change. They are nuts...I would bring it to a different dealer and push for a tear-down and fix of the oil burn/leak or for a new engine. I guess it won't matter if you bore and stroke it, but the principle behind it justifies them tearing it down and replacing the engine if needed. You can also try the Chevy Dealerships in your area...they may be a little more sympathetic.

**Rhode Island Red** · 04-19-2004, 12:44 PM

This is what I found in the past.. both of these the dealer said did not apply to my car ??? I stilll have to perform an oil watch

Higher Than Expected Oil Consumption (Replace Rings)
#01-06-01-023
Higher Than Expected Oil Consumption (Replace Rings)
1999-2001 Chevrolet Camaro, Corvette
1999-2001 Pontiac Firebird
with 5.7L Engine (VINs G, S -- RPOs LS1, LS6)
Condition Some owners may comment on higher than expected oil consumption.
When checked, the oil consumption could be in the range of 400-600 miles per quart (700-1000 km/L).
Cause
The cause for this condition may be an interaction between the piston rings and the cylinder bore in vehicles that are operated at higher RPMs -- typically
manual transmission vehicles driven in a manner where the engine is frequently
or consistently operating at greater than 3200 RPM.
Correction A new set of piston rings is currently available through GMSPO. The
new rings are part of a complete piston ring kit. Install only the number 2
compression
ring and the oil expander ring from the piston ring kit. All other rings in the piston ring kit should be discarded. The original number 1 compression ring and
the oil ring rails should be re-used in their original positions on the piston. All pistons should be used in the same cylinder bore.

Important
Do not dress or hone the cylinder bore. Nothing should be done to
change the bore finish for this condition. Changing the bore finish may aggravate
the condition.

Refer to the Unit Repair Manual for appropriate ring removal and
replacement procedure.
The number 1 compression ring and the upper and lower oil expander
rails are re-used because they are already broken in for the bore that they are
in. The
new number 2 compression ring is made with a very sharp edge that
will break in
quickly.
Changing only the piston rings noted, with no change in driving style,
should
change oil consumption to an acceptable level. Changes in driving
style that
reduce the amount of time spent at higher RPMs will also positively
effect oil
consumption.
In addition to the standard size piston ring kit listed below, a 0.25
mm
oversized piston ring kit is available. The oversized piston ring kit
should
only be used in those rare instances where the cylinder bore size has
been
machined larger to accommodate the 0.25 mm oversized piston rings.
Parts Information
Part Number
Description
Qty
88894299
Ring Kit, Piston
8

Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation
Description
Labor Time
J1307
Piston, Rod and/or Rings -- Replace, Both Banks
Use Published Labor Time

TSB #02-06-01-038
Engine Knock or Lifter Noise (Replace O-Ring) #02-06-01-038 - (12/02/2002)
Engine Knock or Lifter Noise (Replace O-Ring)
2001-2002 Chevrolet Camaro
2001-2003 Chevrolet Corvette
2001-2002 Pontiac Firebird
2002-2003 Cadillac Escalade, Escalade EXT
2000-2003 Chevrolet Suburban, Tahoe
2001-2003 Chevrolet Silverado
2002-2003 Chevrolet Avalanche
2000-2003 GMC Yukon, Yukon XL
2001-2003 GMC Sierra
with 4.8L, 5.3L, 5.7L or 6.0L V8 Engine (VINs V, T, Z, G, S, N, U -- RPOs LR4, LM7, L59, LS1, LS6, LQ9, LQ4)
Condition
Some customers may comment on an engine tick noise. The distinguishing characteristic of this condition is that it likely will have been present since new, and is typically noticed within the first 161-322 km (100-200 mi). The noise may often be diagnosed as a collapsed lifter. Additionally, the noise may be present at cold start and appear to diminish and then return as the engine warms to operating temperature. This noise is different from other noises that may begin to occur at 3219-4828 km (2000-3000 mi).
Cause
The O-ring seal between the oil pump screen and the oil pump may be cut, causing aeration of the oil.
Correction
Inspect the O-ring seal and replace as necessary. Use the applicable part number listed below. Refer to the Engine Mechanical sub-section of the appropriate Service Manual.

Parts Information
Part Number
Description
Qty

12557752
Seal-O/Pmp (O-ring)

(F and Y Cars)
1

12563963
Seal-O/Pmp (O-ring)

(C/K Trucks)
1

Parts are currently available from GMSPO.

Warranty Information
For vehicles repaired under warranty, use:

Labor Operation
Description
Usage
Labor Time

J1060
Pickup Tube and Screen - Replace
F Car
3.7 hrs

Y Car
4.3 hrs

**Rhode Island Red** · 04-20-2004, 07:56 AM

took the car to the dealer today

Having them look at why in 1800 miles I have burned 1.5 quarts of oil this is the 3rd or 4th time that I have taken it in for this exact same reason.. I want at least a ring job performed or better yet a new engine .. 3 quarts+ every 3000 miles is not normal...

and having them look at my power steering pump and why has it gotten louder and louder over the past year...

and having them do my differential fluid/change diff covers to one with the drain plug in it ...

and replace my wipers ($26) as the blade just fell off (age and lack of use??? )

wish her luck

**Mirroredshades** · 04-20-2004, 08:00 AM

http://pistonslap.com/

More than you ever want to know.

Many people have gotten new engines or cars. You have to raise a lot of heck though.

**Rhode Island Red** · 04-20-2004, 08:20 AM

great links to TSB's on it... it seems I have a couple listed above in my post they don't know of... http://www.pistonslap.com/tsb.htm

**Rhode Island Red** · 04-20-2004, 10:34 AM

just got a call ... absolutely no TSB relates to my problem... it ends up that I have to do the oil check every 1000 miles, and report it to them it seems the max acceptable level ovf burning oil is 1 quart every 2000 miles

the dealer cannot help me until the problem is properly documented, by their standards this is step one, so in short, expect me to do some extra milage in the car before august rain or shine... I gotta prove , through documentation, that this engine is burning oil more than GM's official maximum accepted level... dealer cannot help me period, until then as that is what GM wants before giving the dealer $$$ to cover a tear down and mesure everything

also nothing noted about the PS pump that the tecks can see..

**94 formula** · 04-20-2004, 01:38 PM

Just keep taking it back. I'm guessing you bought it new so one of the benefits for paying the extra price is a warrantey so you won't have to worry about it. Keep taking it in until they do it right and have it fixed. Also make sure they document everytime you have your car in so you have something to back you up and threaten to just call the higher ups at GM if you have to.

**Rhode Island Red** · 04-20-2004, 02:12 PM

After talking with a good friend who works for a race shop, and has seen just about every possible LS1 failure, and problem, It seems the easiest way to tell if an LS1 is shot is by running 10W-40 oil.. it seems the LS1 has a strong vacuum, when one lets off the gas, thus it sucks oil passed the rings (thus why cammed cars burn more as they rev more)� it seems that if the engine was truly bad, running this oil should not effect the oil consumption� ends up that running thicker oil will help reduce the oil burning, and even might re-seat the rings (slim chance) I will switch to 10W-40 after I do 3000 mile oil consumption test� with the current 5W-30

As I have it documented, it seems that I can use that documentation to get an replacement if something ever goes bad�

Announcement

What to do to eliminate burning oil/piston slap in an 02 LS1

What to do to eliminate burning oil/piston slap in an 02 LS1

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