Dealer overfilled my 2011 GS Dry Sump
03-04-2012, 05:49 PM
#21
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03-04-2012, 05:53 PM
#22
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I know if i just bring it to them and say check for engine damage I'm sure there will be no issues at all (of course)
03-04-2012, 05:59 PM
#23
Drifting
It seems to drive ok and seems to have good power.
GO to another shop and have it inspected ASAP--NO more driving until you do.
Have the engine "beauty" cover pulled...did they pull/remove/break the SEALED engine oil cap (NOT used with dry sump engines).....you need to know that...then have the inspecting dealer DRAIN all the oil properly- take a jug or two--measure how much was in the engine. Then have a new oil change done.
If they did 'break' that sealed oil cap you will want that replaced. I would want to document what happened with GM (not just the dealer) in case of engine failure in the future (near or far).
Have the engine "beauty" cover pulled...did they pull/remove/break the SEALED engine oil cap (NOT used with dry sump engines).....you need to know that...then have the inspecting dealer DRAIN all the oil properly- take a jug or two--measure how much was in the engine. Then have a new oil change done.
If they did 'break' that sealed oil cap you will want that replaced. I would want to document what happened with GM (not just the dealer) in case of engine failure in the future (near or far).
Last edited by Mach2; 03-04-2012 at 06:02 PM.
03-04-2012, 06:08 PM
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It could be ok, but just wait and let all this Dealership stuff shake out. I would think all's well since you've been driving it and you say
As Z06LUST says on page one,
I'd ask the dealership that screwed the pooch on the oil change deal that if they're so sure no engine damage was done, then allow you to take it to another dealership and have them check it out and the offending dealership pay for it. Of course don't tell the dealership at fault which dealership you are taking your Corvette to for a complete check up, they'll just talk to one another.
As Z06LUST says on page one,
I'd ask the dealership that screwed the pooch on the oil change deal that if they're so sure no engine damage was done, then allow you to take it to another dealership and have them check it out and the offending dealership pay for it. Of course don't tell the dealership at fault which dealership you are taking your Corvette to for a complete check up, they'll just talk to one another.
03-04-2012, 06:08 PM
#25
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They more than likely didn't lie to you at all by saying that all they added was 11 qts of oil.
They removed 6 qts, and added 11 qts!
I am glad they don't have service personel like that working on the airlines!
They removed 6 qts, and added 11 qts!
I am glad they don't have service personel like that working on the airlines!
03-04-2012, 06:27 PM
#27
Burning Brakes
I'll be here for the "Mt 2011 GS Threw a Rod Through the Block" thread in a few weeks.
Too much oil could equal hydrolock and bent rods! Has happened here quite a few times with this same oil overfill problem!!
GM will not cover under warranty, it will be totally up to dealer to repair! Get your documentation straight now. At least run a compression check on all cylinders.
Too much oil could equal hydrolock and bent rods! Has happened here quite a few times with this same oil overfill problem!!
GM will not cover under warranty, it will be totally up to dealer to repair! Get your documentation straight now. At least run a compression check on all cylinders.
03-04-2012, 06:30 PM
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I'll be here for the "Mt 2011 GS Threw a Rod Through the Block" thread in a few weeks.
Too much oil could equal hydrolock and bent rods! Has happened here quite a few times with this same oil overfill problem!!
GM will not cover under warranty, it will be totally up to dealer to repair! Get your documentation straight now. At least run a compression check on all cylinders.
Too much oil could equal hydrolock and bent rods! Has happened here quite a few times with this same oil overfill problem!!
GM will not cover under warranty, it will be totally up to dealer to repair! Get your documentation straight now. At least run a compression check on all cylinders.
03-04-2012, 06:54 PM
#29
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I really doubt that you have any engine damage at all. And if the engine hydrolocked enough to bend a connecting rod, you would certainly know it.
However, I would be VERY pissed that my intake manifold was soaked with oil ! !
I would demand that they remove the intake manifold and throttle body, and completely clean them internally with throttle body cleaner or solvent. However, they would more than likely botch that job up too.
Don't know if your MAF sensor was also soaked in oil, but if it was, it needs to be removed and cleaned with an approved throttle body spray cleaner or replaced.
Again, I hardly doubt that you have any damage at all to your engine. Believe me, this ain't the first time this has ever happened to these LS engines with the dry sump oil system.
Another good example as to why I change my own oil.
However, I would be VERY pissed that my intake manifold was soaked with oil ! !
I would demand that they remove the intake manifold and throttle body, and completely clean them internally with throttle body cleaner or solvent. However, they would more than likely botch that job up too.
Don't know if your MAF sensor was also soaked in oil, but if it was, it needs to be removed and cleaned with an approved throttle body spray cleaner or replaced.
Again, I hardly doubt that you have any damage at all to your engine. Believe me, this ain't the first time this has ever happened to these LS engines with the dry sump oil system.
Another good example as to why I change my own oil.
03-04-2012, 07:03 PM
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Oh I will be from now on. They did clean it, it took three return visits. It's def better but with a flashlight inside the intake manifold I can still see some oil. I understand there is probably not major issues but I am concerned its not running as well as it could. And for a car we spend a lo of money on to run perfectly tuned to eek out every HP I am just worried mine is not any longer
03-04-2012, 07:06 PM
#31
Drifting
Make sure you get some kind of documentation from the dealer admitting to what they did just in case down the road there's a problem. Happened to me when I brought my Harley into a local dealer for a 5K service, they gave it back to me a quart and a half low on oil and I rode it home like that, about 25 miles. When I found out about it the next day, I called the dealer and they did the right thing including documentation admitting their mistake and all the details, 5 years later no problems!
03-04-2012, 07:07 PM
#32
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Same thing happened to me. I even told the service writer that it was a dry sump and changing the oil was different. He said their mechanics were aware. Well as I pull off the lot nothing but white smoke and no power. Went right back and it was fixed. I also got documentation in the event something happens down the road. GM even came out to find out what all the smoke was. I have driven since this happened and all seems to be okay.
03-04-2012, 07:12 PM
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I think that will be my plan. I am going to have it documented formally by the dealer and then have the car looked at and maybe dyno tuned. I may even ask the dealer to foot the bill for that so I can have piece of mind all is ok
03-04-2012, 07:16 PM
#34
Wow..................just WOW. 
A certified GM Dealer Service Center that performs an oil change on your Corvette and they don't know what they're doing???????????? I would go to the service manager again, I'm sure you have talked to him about this issue his service department did, and demand, DEMAND, lifetime oil changes, and any related work done to your Corvette that may have been the result of their total lack of knowledge about servicing your engine with a simple to read and understand service instructions on changing oil in a dry sump oil system, done free to you. Also write a letter explaining what they did to the the Service Department Manager and Dealership Owner so your concern is on record.
Good luck, but I can't think of any good think the result of their overfilling the oil system and making the engine receive excess oil pressurization due to their mistake.
A certified GM Dealer Service Center that performs an oil change on your Corvette and they don't know what they're doing???????????? I would go to the service manager again, I'm sure you have talked to him about this issue his service department did, and demand, DEMAND, lifetime oil changes, and any related work done to your Corvette that may have been the result of their total lack of knowledge about servicing your engine with a simple to read and understand service instructions on changing oil in a dry sump oil system, done free to you. Also write a letter explaining what they did to the the Service Department Manager and Dealership Owner so your concern is on record.Good luck, but I can't think of any good think the result of their overfilling the oil system and making the engine receive excess oil pressurization due to their mistake.
Just saying...
03-04-2012, 07:41 PM
#35
Burning Brakes
Here's a quick search and I think I saw 4 threads about engines destroyed from this exact thing.
http://forums.corvetteforum.com/sear...rchid=28646931
http://forums.corvetteforum.com/sear...rchid=28646931
I really doubt that you have any engine damage at all. And if the engine hydrolocked enough to bend a connecting rod, you would certainly know it.
However, I would be VERY pissed that my intake manifold was soaked with oil ! !
I would demand that they remove the intake manifold and throttle body, and completely clean them internally with throttle body cleaner or solvent. However, they would more than likely botch that job up too.
Don't know if your MAF sensor was also soaked in oil, but if it was, it needs to be removed and cleaned with an approved throttle body spray cleaner or replaced.
Again, I hardly doubt that you have any damage at all to your engine. Believe me, this ain't the first time this has ever happened to these LS engines with the dry sump oil system.
Another good example as to why I change my own oil.
However, I would be VERY pissed that my intake manifold was soaked with oil ! !
I would demand that they remove the intake manifold and throttle body, and completely clean them internally with throttle body cleaner or solvent. However, they would more than likely botch that job up too.
Don't know if your MAF sensor was also soaked in oil, but if it was, it needs to be removed and cleaned with an approved throttle body spray cleaner or replaced.
Again, I hardly doubt that you have any damage at all to your engine. Believe me, this ain't the first time this has ever happened to these LS engines with the dry sump oil system.
Another good example as to why I change my own oil.
03-04-2012, 07:47 PM
#36
Race Director
Good idea! I believe they didn't drain it right. Most of the lube rack guys probably don't know the difference between a dry sump and a wet sump system.
03-04-2012, 08:02 PM
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03-04-2012, 08:27 PM
#39
Not to be an *** but you acted like a women in this situation. I would of made them refund my money and on top of that complain to the manager and then pin point exactly who was working on the car. First rule of thumb is usually never bring the car to a dealer that doesnt have a corvette specialist working there. Or better yet never bring your car to the dealer. I always have my tuner do all the work on my car. They always change my fluids for free as long as i buy the filters and oil and i tip the tech good.
