[cdrptrks]

Originally Posted by SloCal

How far back do/did they check for overrevs? If you buy a used car and 10k miles later your motor blows on track are you out the 10k for a new motor?

I had a Chevy dealership check for over revs as part of my pre purchase inspection since the car was pre-owned and they didn't mention a limit to how far back the check goes. I assume it goes all of the way back to when the car was new...it wouldn't take up much storage space.

[IntegraR0064]

yeah they didn't specifically tell me how far back they looked for overrevs but I assume it's a binary that once it gets overreved it stores that forever. So might make sense to have a dealer check it if you're buying used and will be tracking the car.

[cdrptrks]

The dealership was able to confirm that the car's warranty was valid from the overrev check and visual inspection (and probably also from checking notes/service history in their system). I would highly recommend having this checked with passing being a condition of purchase for anyone buying a used manual car.

[SloCal]

Originally Posted by cdrptrks

The dealership was able to confirm that the car's warranty was valid from the overrev check and visual inspection (and probably also from checking notes/service history in their system). I would highly recommend having this checked with passing being a condition of purchase for anyone buying a used manual car.

I have a friend that went over by about 700 rpm on track one time on a downshift but we both count on our warranties for track usage so that's interesting.


Wonder if the motor blew 10-15K miles later if they would deny coverage just for that.

[cre8fun]

Originally Posted by SloCal

I have a friend that went over by about 700 rpm on track one time on a downshift but we both count on our warranties for track usage so that's interesting.


Wonder if the motor blew 10-15K miles later if they would deny coverage just for that.

I wonder that also. had a friend overrev his c7 ZR1. a while later while at the dealer, he asked his mechanic if he could see it. the mechanic said they can only see the last five ignition cycles. seems like a short memory and I don't know if the same applies for ours.

Sadly, my motor let go this past weekend at VIR, so I'll start this process with the dealer this week. ('21 SS 1LE with 8K on it).

[cre8fun]

Originally Posted by cre8fun

Sadly, my motor let go this past weekend at VIR, so I'll start this process with the dealer this week. ('21 SS 1LE with 8K on it).

Glad to report 2 weeks in and out, dealer replaced the motor, no drama. I will say, it was very useful to talk with the service director ahead of time. I talked with one at a different Chevy dealer, she was concerned that track usage would void it. she called her GM district manager who flat out told her "no, it's not covered." scary.

went to another dealer, talked with the service director who said, "if you've not changed the ECU, it's covered." dropped the car there, 2 hours later they had cleared the ECU with GM and a new motor was on order.

Amazing the variability within the same state.


BTW - When I left I asked if there was any published "required" break in for the motor and got blank stares. I know the manual says 1200 miles for a completely new car. anyone see any print specifying break in for a new motor?

[carguy55]

I now have 2 friends with SS 1LEs that had motors let go at COTA. One was a 17 and the other a 19. Replaced with no issues.

[Kmeleon]

Originally Posted by cre8fun

Glad to report 2 weeks in and out, dealer replaced the motor, no drama. I will say, it was very useful to talk with the service director ahead of time. I talked with one at a different Chevy dealer, she was concerned that track usage would void it. she called her GM district manager who flat out told her "no, it's not covered." scary.

went to another dealer, talked with the service director who said, "if you've not changed the ECU, it's covered." dropped the car there, 2 hours later they had cleared the ECU with GM and a new motor was on order.

Amazing the variability within the same state.


BTW - When I left I asked if there was any published "required" break in for the motor and got blank stares. I know the manual says 1200 miles for a completely new car. anyone see any print specifying break in for a new motor?

Glad you got it replaced no issues! As far as break in, just follow the original guidelines. For the most part that procedure is for the engine most importantly.

[Beescuz]

Originally Posted by cre8fun

Glad to report 2 weeks in and out, dealer replaced the motor, no drama. I will say, it was very useful to talk with the service director ahead of time. I talked with one at a different Chevy dealer, she was concerned that track usage would void it. she called her GM district manager who flat out told her "no, it's not covered." scary.

went to another dealer, talked with the service director who said, "if you've not changed the ECU, it's covered." dropped the car there, 2 hours later they had cleared the ECU with GM and a new motor was on order.

Amazing the variability within the same state.


BTW - When I left I asked if there was any published "required" break in for the motor and got blank stares. I know the manual says 1200 miles for a completely new car. anyone see any print specifying break in for a new motor?

Glad to hear!

[IntegraR0064]

Originally Posted by cre8fun

Glad to report 2 weeks in and out, dealer replaced the motor, no drama. I will say, it was very useful to talk with the service director ahead of time. I talked with one at a different Chevy dealer, she was concerned that track usage would void it. she called her GM district manager who flat out told her "no, it's not covered." scary.

went to another dealer, talked with the service director who said, "if you've not changed the ECU, it's covered." dropped the car there, 2 hours later they had cleared the ECU with GM and a new motor was on order.

Amazing the variability within the same state.


BTW - When I left I asked if there was any published "required" break in for the motor and got blank stares. I know the manual says 1200 miles for a completely new car. anyone see any print specifying break in for a new motor?

It's the full manual break-in, that's what the dealer told me.

Also I'm fairly certain it's 1500 miles. And the first 500 miles are super restrictive, no cruise control or over 4000 rpm.

[SloCal]

Originally Posted by cre8fun

I wonder that also. had a friend overrev his c7 ZR1. a while later while at the dealer, he asked his mechanic if he could see it. the mechanic said they can only see the last five ignition cycles. seems like a short memory and I don't know if the same applies for ours.

Sadly, my motor let go this past weekend at VIR, so I'll start this process with the dealer this week. ('21 SS 1LE with 8K on it).

was c7 zr1 covered under warranty? Hard to believe it's just 5 key cycles but per my example I just can't see gm denying motor for an over rev under previous owner on a CPO car?

Crazy that towing your blown motor car to one dealer can result in "voided warranty" when this is explicitly covered

[davidwarren]

well, I blew my motor at Road America last year right at the top of the hill on the front straight shifting to 5th. And just did it again this weekend! Exact same spot. Wasn't a missed shift or over rev, just let go at the top of the RPM range in 4th. Last year the dealership in WI said it was a piston failure... Behaved exactly the same this year. Towed it to the same dealership.

[m6-lt1]

Originally Posted by davidwarren

well, I blew my motor at Road America last year right at the top of the hill on the front straight shifting to 5th. And just did it again this weekend! Exact same spot. Wasn't a missed shift or over rev, just let go at the top of the RPM range in 4th. Last year the dealership in WI said it was a piston failure... Behaved exactly the same this year. Towed it to the same dealership.

Since it happened at the same spot I wonder if it’s because of oil starvation when going up hill for an extensive period of time.

[davidwarren]

Originally Posted by m6-lt1

Since it happened at the same spot I wonder if it’s because of oil starvation when going up hill for an extensive period of time.

I wonder the same. Obviously had plenty of fresh oil, checked the level before running that session as well. Oil pressure was good until it wasn’t in PiToolbox.