loflite

I did try sea foam and that other stuff that GM sells. Did not help. Today, after 20000 miles it is a little better and does not ping as much. Also, I changed my driving habits. I beat on the car more. I think that probably has more to do with it pinging less. the computer relearned the driving habits. Hope this helps you in diagnosing your pinging.

Mad*Max

My car does it too, dealers say that it is normal. I run only premium gas (91 or higher) at all times.

06 C6 vert

Yes, try running it at much higher revs for most of your drive, even if you must burn more gas. Are you loading the engine at low revs?

I was also thinking of carbon build up but you said it pinged from day one. grrrrr

M6 or A6?

Boomer111

I was told that these engines detonate like crazy from the factory. One reason why I had it tuned from the get go.

The BreeZe

I had a 2001 Coupe M6 that would ping on heavy acceleration on straight premium gas. I always added an octane booster with each fill up. Didn't have the ping with the octane booster.

As far as I'm concerned, it had nothing to do with the engine tune. The recommended octane of 93 is the MINIMUM RECOMMENDED OCTANE!! You think you're getting full 93 octane rating at the pump?

Had the car for 8-years, and whenever I "got on it" if I didn't have octane booster it pinged.

Same issue in my new Z06, although harder to hear the ping wiht the bi-mode exhaust howling.

Booster won't hurt your engine, just a few more bucks per fill-up

The BreeZe

torquetube

Mine too, and since day one. I've tried nearly everything - multiple full tanks of 100 octane unleaded (it's available around here), new plugs, new wires. It hasn't thrown any codes, doesn't consume oil and has otherwise run perfectly for 60K miles.

The pinging clears up past about 4K RPM. The computer is clearly okay with it. I might try changing the knock sensors.

vettedoogie

The real point is you shouldn't have to add octane booster. I fill my 05 (14,000 mi.) up with 91 or 92 all the time and 93 if I can find it. I have also filled it up with 89 regular unleaded when I have to and I have NEVER had my LS2 ping. My engine is completely stock. Assuming the OP is telling us the truth, it has to be something off with the engine.

longdaddy

i had ls1 camaro that just started doing it one day and everything in the car checked out fine (and I checked pretty much anything you can think of), the only thing that fixed it was a tune. some LSx motors apparently just do it.

BSE1956

Mad*Max

I think that this is a characteristic of LSx engines, my '01 Trans Am got the same problem shortly after buying. I am glad to see that I am not alone with this problem.

And I don't know if this is of any relevance, but both engines burned a little bit of oil (top ups required between oil changes).

08VRZ06

My 2001 C5 LS1 M6 used to ping under had acceleration even with premium gas and octane boost. You could only get 91 octane at the pumps in CA. Now my 08 LS3 with A6 never pings. I use Shell 93 octane here in AR. I wonder if it is the tune in the earlier cars putting to much advance in at too low of RPM? You would still think that the knock sensor would sense the pinging and pull the advance to stop it if it was a timing issue..... Maybe get a tuner if nothing else to put his laptop on it while you drive it and make it ping so he can see if the knock sensor is telling the computer to pull timing.

Mark

Dave O

Mine pinged from day one as well. Only 91 octane available here in California. My tuner said that virtually all of the C6's he had tuned pinged. After the tune, no more pinging. Just another reason why I had my car tuned, not to mention the fun factor.

knkali

tune and colder spark plug range and problem is gone but so could be your warranty. Please no comments on the warranty thing

Gearhead Jim

I feel your pain.
The 2001 LS engines had a new "Improved" ring design that caused higher oil consumption and was replaced for 2002. GM had a ring kit available to replace just one ring one each piston, some cars were fixed under warranty and that greatly reduced the problem.

My 2001 A4 usually burned about 1 qt/3k miles, my 2006 A6 was 1 qt/23k miles, 2009 A6 looks like about 1 qt/15k miles but too early to be sure.

No pinging on any of them.

Mad*Max

I just have to remind myself to keep adding oil every now and then. My last oil change was 10k miles ago and I've added a quart.

hawkgfr

All lsx engines PING some... It is part of how the ecm knows what the engine is doing. Pinging means you are running lean and the timing is advanced for max efficiency. Pinging is not the same as detonation...Tuning will make the engine ping worse because they get the extra power by advancing the timing. imo...

longdaddy

mine got fixed by a tune because we took some timing out.

Max EPR

Don't just ignore it as I did and then busted a crank on a Pontiac. It's a serious timing problem. I don't understand how the Corvette adjusts it's timing but it's either stick too far advanced or the static time is too far advanced.

A momentary ping is normal but constant pinging or rattle is not.

FGO

I have a 2006 Z51 to and the noise drove me crazy. I found it by accident when changing the interior lighting to LED. It's the rear cargo lights. Pull them out and shake them and see (like I did) if it's the same sound. It's the heat shield - just use aluminum tape and tape the shield to the fixtrue so it can't move.

Vette_DD

This is a 9-year old thread and the OP hasn't been on the forum in 3 years. I doubt if your post is really going to help him very much.