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Newb in need of help.

Old 07-10-2018, 08:27 AM
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qokuh
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Default Newb in need of help.


I looked and i cant find what i need. I am sorry. I searched.

My dad is an old man wanting to buy a Vette. He knows nothing and i know minimal. Everything was fine until i looked under the car and saw this--see attachment.

I dont want him to get ripped off. There's non red oil dripping from the rear.

BTW-its a 2012 Grand Sport with 9K miles only.

Last edited by qokuh; 07-10-2018 at 08:46 AM. Reason: adding more
Old 07-10-2018, 08:46 AM
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farmington
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Red oil = trans fluid
this one looks like it’s led a hard life. At least I would take it to an alignment shop and see if chassis has been damaged enough to affect if it drives straight.
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Old 07-10-2018, 08:50 AM
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Originally Posted by farmington
Red oil = trans fluid
this one looks like it’s led a hard life. At least I would take it to an alignment shop and see if chassis has been damaged enough to affect if it drives straight.
Thanks for the response. It's a mint car, one owner, with 9K miles. Its not red, its like motor oil. Thinking its diff oil. Does GM have a plug-in at the dealer to say how many times it's been launched controlled?
Old 07-10-2018, 09:03 AM
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Lee Cromwell
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I have to differ with you, this Sir is definitely not a Mint car!! If you're looking to buy i would Not, if it's already yours and you say it's a one owner car you should know how this happened and just how many times it's been launched controlled! But mint.....no way
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Old 07-10-2018, 09:04 AM
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That's probably why it is for sale!!
Old 07-10-2018, 09:18 AM
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Someone needs to check the drain plug and the fill plug on the differential to make sure they are not leaking.
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Old 07-10-2018, 09:28 AM
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Originally Posted by stingray71
Someone needs to check the drain plug and the fill plug on the differential to make sure they are not leaking.
thanks,

I tried to but i cant get my head under there. Are there any common problems with c6s/grand sports on the rear ends like this?
Old 07-10-2018, 09:44 AM
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Originally Posted by qokuh
thanks,

I tried to but i cant get my head under there. Are there any common problems with c6s/grand sports on the rear ends like this?
Hi OP...IMHO that car should be taken directly to a dealer/independent shop for an analysis of what’s wrong. As stated above it could be a diff plug issue...my guess is it is worse, but there is simply too much lube over the bottom of that car to ignore. Since you stated that you can’t assess the problem you should get it to someone that can before you (or your dad) agrees to buy it. Good luck...
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Old 07-10-2018, 09:47 AM
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Originally Posted by qokuh
thanks, I tried to but i cant get my head under there. Are there any common problems with c6s/grand sports on the rear ends like this?
Let's go back to an earlier question...do you own this car, or are you looking to own it?
If you don't own it now:
don't own it until after the present owner fixes the problem.
If you do own it now: get it to a Corvette shop (or dealer) and get it on a lift so the underside can be checked. Plus you have a real mess to clean up under the car.
To answer your current question...C6 rear diffs, on a non-modified car, are virtually bullet proof. Unless they have been run low on fluid.
Go to any GM dealer with the vin # and ask the service department to print the GMVIS and build sheets for this car.

Plus, there looks to be serious metal crumpling in the photo.

Last edited by ruxvette; 07-10-2018 at 09:49 AM.
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Old 07-10-2018, 09:48 AM
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Curt D
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Add your location in your profile and maybe somebody in the area could help out.
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Old 07-10-2018, 09:58 AM
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For the tank shield to have been bent that far up? And that much oil and dirt accumulated in only 9k miles? Who knows how much oil is left inside and how long it was driven like that.

Your dad is not mechanically inclined and neither are you. The repairs will not be cheap and we don't even know what kind of hidden damage there is. Anybody can buff out the paint and shampoo the carpet to make it look mint. Be smart and walk away from this money pit.

Last edited by Sox-Fan; 07-10-2018 at 09:59 AM.
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Old 07-10-2018, 10:08 AM
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Originally Posted by ruxvette
Let's go back to an earlier question...do you own this car, or are you looking to own it?
If you don't own it now:
don't own it until after the present owner fixes the problem.
If you do own it now: get it to a Corvette shop (or dealer) and get it on a lift so the underside can be checked. Plus you have a real mess to clean up under the car.
To answer your current question...C6 rear diffs, on a non-modified car, are virtually bullet proof. Unless they have been run low on fluid.
Go to any GM dealer with the vin # and ask the service department to print the GMVIS and build sheets for this car.

Plus, there looks to be serious metal crumpling in the photo.

We dont own it. We were planning to buy--the owner said he will fix it. Thanks so much!
Old 07-10-2018, 10:08 AM
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Originally Posted by Curt D
Add your location in your profile and maybe somebody in the area could help out.

I will try to figure that out.
Thank you.
Old 07-10-2018, 10:13 AM
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Originally Posted by qokuh

We dont own it. We were planning to buy--the owner said he will fix it. Thanks so much!
Move on to another one ....
Old 07-10-2018, 10:16 AM
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qokuh
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Originally Posted by Sox-Fan
For the tank shield to have been bent that far up? And that much oil and dirt accumulated in only 9k miles? Who knows how much oil is left inside and how long it was driven like that.

Your dad is not mechanically inclined and neither are you. The repairs will not be cheap and we don't even know what kind of hidden damage there is. Anybody can buff out the paint and shampoo the carpet to make it look mint. Be smart and walk away from this money pit.

So that semi-shiny bit is bent? Looked funny to me too. I want to confirm, that isnt supposed to be that way? if so i think we will pass on the car. I dont want bent metal under there. it should be like new.

Thanks for the insight.
Old 07-10-2018, 10:20 AM
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Originally Posted by qokuh
...I think we will pass on the car. I dont want bent metal under there. it should be like new...
Right answer!
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Old 07-10-2018, 10:22 AM
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Pb82 Ronin
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Ask to put the car on a lift and see how far forward the fluid is leaking. If it's coming from the engine and travelling through the torque tube, then I would advise moving on from this car, unless! Offer the seller $5-6K less than what he's asking to cover potential repairs. Or better yet, take it to a car wash that can clean the undercarriage and see what the real damage (if any) there is. This really could be just a loose plug on the diff. No sense in leaving what could potentially be a great buy based on presumptions.
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Old 07-10-2018, 11:25 AM
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The bent looking metal is a fuel tank shield. It's possible that tank is ruptured and spraying gas all over everything behind it.
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Old 07-10-2018, 11:31 AM
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Originally Posted by ruxvette
Right answer!
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Old 07-10-2018, 11:33 AM
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"Mint" ???? Not so much.... but, it's your money...
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