C7 engine blew up
Drifting
Joined: Mar 2013
Posts: 1,705
Likes: 539
From: Hampton VA
True. I wondered about the "cold" reading but the manual said let it sit for a couple of hours before checking. My check was when the car was completely cold. Perhaps it is different for dry sumps as opposed to wet sump engines. I'd rather not go through warranty service if I can help it. This place wasn't Carmax.
Last edited by Jmhornz71; Jan 3, 2019 at 02:53 PM.
Le Mans Master
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
" dry sump" means when engine is running there is very little oil in sump or pan. Oil is pumped to a storage tank. The oil needs to have time to drain back to pan. Situation sucks but a guaranteed used engine could be worthwhile option. There are several available online.
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 34,950
Likes: 12,362
From: NE South Carolina
Hmm, just so there is no confusion about the oil level check for a Dry Sump. You are NOT waiting for the oil to drain back to the pan- just the opposite! With the oil hot, after shutting off the engine you wait 5 minutes for the oil to drain down from baffels in the external Dry Sump Tank. But no more than 10 minutes or excess oil will drain back to the oil pan and you’ll get a false low reading. Therefore you have a 5 minute window.
For fun, I checked the oil level before starting the car after it sat for ~a day. It was below the tip of the dip stick or 5 inches below the minimum dip stick mark ~>5 quarts low. It probably drains back though the oil/air scavenge pump gears. No problem as there is oil left for starting and it quickly flows back from the pan to the tank. Some folks report hearing it flow back.
For fun, I checked the oil level before starting the car after it sat for ~a day. It was below the tip of the dip stick or 5 inches below the minimum dip stick mark ~>5 quarts low. It probably drains back though the oil/air scavenge pump gears. No problem as there is oil left for starting and it quickly flows back from the pan to the tank. Some folks report hearing it flow back.
Last edited by JerryU; Jan 4, 2019 at 09:50 AM.
Le Mans Master
Joined: May 2005
Posts: 6,656
Likes: 823
From: FORT LAUDERDALE FL
I tuned my 07 when it was nearly brand new and never had an issue, the second owner has not any issues. I think that the catastrophic failure of driveline components on these cars is fairly rare. I don't think that it happens often...tune or no tune.
Last edited by jimmie jam; Jan 4, 2019 at 10:08 AM.
Racer
Joined: Apr 2018
Posts: 251
Likes: 83
From: So Cal
C7 Engine failure
Opinions here are welcome but the only benefit the forum can provide this poor fella is the name and number of a good attorney, unless the original dealership helps him out with this. If his story is straight he should at least buy an hour with an experienced attorney who could give him the lowdown on his chances in court. I don't know one but if some one knows a great attorney experienced in this particular field of law, perhaps he or she could provide the name and number
Drifting
Joined: Oct 2003
Posts: 1,639
Likes: 376
From: Millstadt Illinois
Opinions here are welcome but the only benefit the forum can provide this poor fella is the name and number of a good attorney, unless the original dealership helps him out with this. If his story is straight he should at least buy an hour with an experienced attorney who could give him the lowdown on his chances in court. I don't know one but if some one knows a great attorney experienced in this particular field of law, perhaps he or she could provide the name and number
Melting Slicks
Joined: Jun 2013
Posts: 2,308
Likes: 251
From: Baltimore Maryland
Not sure I even buy the whole "engine was tuned" excuse here. I think GM may be full of it.
As most know, there were a bunch of catastrophic C7 engine failures in the early model years. GM replaced many motors under warranty and then even began requiring a 500 mile first oil change in the dry sump motors because of this. (Of course they reduced their powertrain warranty from 5 year/100,000 miles to 4 year/ 60,000 miles as well.)
I wonder if this engine would have failed, just like many others did in 2014 and 2015, and should absolutely be replaced under warranty, regardless of any tune (if there even was one). Not liking GM here.
May need an attorney, all the previous service records, and an honest Corvette mechanic to get to the bottom of this one.
As most know, there were a bunch of catastrophic C7 engine failures in the early model years. GM replaced many motors under warranty and then even began requiring a 500 mile first oil change in the dry sump motors because of this. (Of course they reduced their powertrain warranty from 5 year/100,000 miles to 4 year/ 60,000 miles as well.)
I wonder if this engine would have failed, just like many others did in 2014 and 2015, and should absolutely be replaced under warranty, regardless of any tune (if there even was one). Not liking GM here.
May need an attorney, all the previous service records, and an honest Corvette mechanic to get to the bottom of this one.
Last edited by csf; Jan 4, 2019 at 06:22 PM.
Melting Slicks
Joined: Oct 2016
Posts: 2,873
Likes: 2,505
Not sure I even buy the whole "engine was tuned" excuse here. I think GM may be full of it.
As most know, there were a bunch of catastrophic C7 engine failures in the early model years. GM replaced many motors under warranty and then even began requiring a 500 mile first oil change in the dry sump motors because of this. (Of course they reduced their powertrain warranty from 5 year/100,000 miles to 4 year/ 60,000 miles as well.)
I wonder if this engine would have failed, just like many others did in 2014 and 2015, and should absolutely be replaced under warranty, regardless of any tune (if there even was one). Not liking GM here.
May need an attorney, all the previous service records, and an honest Corvette mechanic to get to the bottom of this one.
As most know, there were a bunch of catastrophic C7 engine failures in the early model years. GM replaced many motors under warranty and then even began requiring a 500 mile first oil change in the dry sump motors because of this. (Of course they reduced their powertrain warranty from 5 year/100,000 miles to 4 year/ 60,000 miles as well.)
I wonder if this engine would have failed, just like many others did in 2014 and 2015, and should absolutely be replaced under warranty, regardless of any tune (if there even was one). Not liking GM here.
May need an attorney, all the previous service records, and an honest Corvette mechanic to get to the bottom of this one.
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Brett Foote
Safety Car
Joined: Feb 2016
Posts: 4,980
Likes: 3,826
From: Bainbridge Island WA
Speculation on whether the engine might have blown regardless of a tune doesn't really matter here, whether or not you "like" GM. The rule is, if it has been tuned, there is no warranty. End of story. The only real issue here is whether this can be pinned on the selling dealer. He will say, of course, that he had no reason to believe the car had been tuned and did not check, therefore he can't be held liable. But as Jallen informs us, if it can be successfully argued that he SHOULD have known and/or checked, then OP may have a case. Is it considered "standard operating procedure" for a dealer to check for a tune before placing a car for sale? I can't imagine that your average used car dealer would even know it was a warranty issue, much less how to check for a tune. How could they be expected to keep up in warranty details for every brand they sell? Not likely you could nail "Joe's Used Cars" here. But for Chevy dealers that sell Corvettes, maybe so.
Le Mans Master
Joined: Oct 2014
Posts: 8,672
Likes: 2,726
From: Atlanta GA
Not sure I even buy the whole "engine was tuned" excuse here. I think GM may be full of it.
As most know, there were a bunch of catastrophic C7 engine failures in the early model years. GM replaced many motors under warranty and then even began requiring a 500 mile first oil change in the dry sump motors because of this. (Of course they reduced their powertrain warranty from 5 year/100,000 miles to 4 year/ 60,000 miles as well.)
I wonder if this engine would have failed, just like many others did in 2014 and 2015, and should absolutely be replaced under warranty, regardless of any tune (if there even was one). Not liking GM here.
May need an attorney, all the previous service records, and an honest Corvette mechanic to get to the bottom of this one.
As most know, there were a bunch of catastrophic C7 engine failures in the early model years. GM replaced many motors under warranty and then even began requiring a 500 mile first oil change in the dry sump motors because of this. (Of course they reduced their powertrain warranty from 5 year/100,000 miles to 4 year/ 60,000 miles as well.)
I wonder if this engine would have failed, just like many others did in 2014 and 2015, and should absolutely be replaced under warranty, regardless of any tune (if there even was one). Not liking GM here.
May need an attorney, all the previous service records, and an honest Corvette mechanic to get to the bottom of this one.
Dave
Administrator
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Hope things do work out for the OP, but a status update would be nice to know.
Melting Slicks
Joined: Oct 2008
Posts: 3,359
Likes: 604
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 34,950
Likes: 12,362
From: NE South Carolina
It also notes, for fun, I checked the oil level before starting the car after it sat for ~a day. It was below the tip of the dip stick or 5 inches below the minimum dip stick MIN mark ~>5 quarts low. It probably drains back though the oil/air scavenge pump gears to the pan. No problem as there is oil left for starting and it quickly flows back from the pan to the tank. Some folks report hearing it flow back.
Last edited by JerryU; Jan 5, 2019 at 08:41 AM.