Error Code: P0556 / Solution: After 16 days of Service and 9 Months of Ownership. - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

qniknam · 03-10-2011, 01:12 PM

Hey guys, I figured I should let you know this. For those of you that have an Automatic SS/L99 you may have noticed that your car sometimes randomly pops up with the P0556 Check Engine Light, claiming Brake Booster Sensor Performance. Well the dealer here in San Diego, Courtesy, which has been super good to me just figured it out. It's not the brake booster, or the brakes (but it does cause significant more wear and tear on the brakes) -- This had been an issue for me since I purchased mine April of 10' turns out GM has a fix for this, the lifters on the left side of the engine are too aggressive not only causing your engine to eat oil but to get a lot of excess oil caught in the intake which lead to clogging the brake vacuum line from the engines intake leading to the Check Engine Light... At first they thought its a bad sensor and finally the past three weeks my car had been in service because it was the 3rd time for the same thing a GM Specialist came out and looked at it and noticed my exhaust tips being unusually dark and burned, and he checked the intake and said he literally had to poor oil out of it.

Hopefully this helps all of you out.

BigCarrot · 03-10-2011, 01:14 PM

wow, I don't have the Auto but i'll definately keep an eye out for that type of issue. Good to know and glad your problem got fixed

jtzako · 03-10-2011, 02:28 PM

I've never see any codes on mine, but good to know.

Kendell347 · 03-10-2011, 02:59 PM

I guess this is where an oil catch can comes in handy?

Maxwell_Bently · 11-02-2023, 06:14 AM

Quote:

Originally Posted by qniknam

Hey guys, I figured I should let you know this. For those of you that have an Automatic SS/L99 you may have noticed that your car sometimes randomly pops up with the P0556 Check Engine Light, claiming Brake Booster Sensor Performance. Well the dealer here in San Diego, Courtesy, which has been super good to me just figured it out. It's not the brake booster, or the brakes (but it does cause significant more wear and tear on the brakes) -- This had been an issue for me since I purchased mine April of 10' turns out GM has a fix for this, the lifters on the left side of the engine are too aggressive not only causing your engine to eat oil but to get a lot of excess oil caught in the intake which lead to clogging the brake vacuum line from the engines intake leading to the Check Engine Light... At first they thought its a bad sensor and finally the past three weeks my car had been in service because it was the 3rd time for the same thing a GM Specialist came out and looked at it and noticed my exhaust tips being unusually dark and burned, and he checked the intake and said he literally had to poor oil out of it.

Hopefully this helps all of you out.

Soooo...what was the solution to fix it all?

el ess A · 11-02-2023, 08:20 AM

Quote:

Originally Posted by Maxwell_Bently

Soooo...what was the solution to fix it all?

After 12 years of waiting, I doubt if we'll ever find out.

1JEWLDSSRS · 11-02-2023, 09:58 AM

Quote:

Originally Posted by el ess A

After 12 years of waiting, I doubt if we'll ever find out.

I was just gonna say!!!

acutron42 · 11-02-2023, 10:33 AM

I think the fix is in the post maybe? April of 10' turns out GM has a fix for this

el ess A · 11-02-2023, 11:26 AM

Quote:

Originally Posted by acutron42

I think the fix is in the post maybe? April of 10' turns out GM has a fix for this

And that fix is.................?

I mean, I've been to Chevy service departments that I wouldn't let them fix my lawn mower, let alone touch my car.

acutron42 · 11-02-2023, 12:17 PM

Quote:

Originally Posted by el ess A

And that fix is.................?

I mean, I've been to Chevy service departments that I wouldn't let them fix my lawn mower, let alone touch my car.

Yeah right lol. I have had free oil changes from my local dealership in the past that I have thrown out.

03-10-2011, 01:12 PM	#1
qniknam Account Suspended Drives: 13 ZL1 \| 13 SRT GC \| 13 SRT CHARGER Join Date: Nov 2010 Location: Livermore, CA Posts: 254	Error Code: P0556 / Solution: After 16 days of Service and 9 Months of Ownership. Hey guys, I figured I should let you know this. For those of you that have an Automatic SS/L99 you may have noticed that your car sometimes randomly pops up with the P0556 Check Engine Light, claiming Brake Booster Sensor Performance. Well the dealer here in San Diego, Courtesy, which has been super good to me just figured it out. It's not the brake booster, or the brakes (but it does cause significant more wear and tear on the brakes) -- This had been an issue for me since I purchased mine April of 10' turns out GM has a fix for this, the lifters on the left side of the engine are too aggressive not only causing your engine to eat oil but to get a lot of excess oil caught in the intake which lead to clogging the brake vacuum line from the engines intake leading to the Check Engine Light... At first they thought its a bad sensor and finally the past three weeks my car had been in service because it was the 3rd time for the same thing a GM Specialist came out and looked at it and noticed my exhaust tips being unusually dark and burned, and he checked the intake and said he literally had to poor oil out of it. Hopefully this helps all of you out.

03-10-2011, 02:28 PM	#3
jtzako Drives: 2010 IBM Camaro SS Join Date: Jun 2007 Location: DFW, Tx Posts: 1,157	I've never see any codes on mine, but good to know. __________________ 2010 Camaro SS Imperial Blue \| CAI Inc, CAI \| Solo Hi Flow Cats \| X-Pipe \| Backup Camera \| PDIM

03-10-2011, 02:59 PM	#4
Kendell347 Doc Drives: BLACKOUT & Fifty Join Date: Jul 2009 Location: Long Island, NY Posts: 1,580 View My Garage	I guess this is where an oil catch can comes in handy? __________________ 1100-7/20/2009 * 6000-2/4/10 Proud Owner of Autographed Litho # 1282010 Camaro 2 SS/RS - BLACKOUT & 2017 Camaro 2 SS - 50th Anniversary #894 WWW. NY5THGEN.COM

11-02-2023, 10:33 AM	#8
acutron42 Drives: 2013 Camaro 2SS AGM Join Date: Apr 2020 Location: WNY Posts: 733	I think the fix is in the post maybe? April of 10' turns out GM has a fix for this __________________ 2013 2SS GPI built & tuned 415, spec'd by Andrew Cammer. GPI ported intake/tb/heads, Tooley springs, CHE trunnions, Callies rotating assembly, Diamond pistons, GPI SS3 VVT, ATI 10% ud damper, Circle D 3800, Kooks ceramic coated lt's with green cats, Mishimoto rad & oil cooler, Derale trans cooler, Holley efi rails.

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03-10-2011, 01:14 PM	#2
BigCarrot xbox: this is tedious Drives: 2011 1SS M6 Camaro IOM Join Date: Mar 2011 Location: Pearland, TX Posts: 705 View My Garage	wow, I don't have the Auto but i'll definately keep an eye out for that type of issue. Good to know and glad your problem got fixed