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Engine toast!

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Old May 7, 2017 | 04:15 PM
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Default Engine toast!

So I drive a 2014 Z51 M7. Driving down the highway last week and the car started making some horrible noises (clunking and grinding). Immediately drove to the dealer. The next day the service manager calls me and says what everyone dreads hearing... "Sorry to tell you this, but you need a new engine"

WHAT!!???!!!

So after a little back and forth with GM they will be replacing my motor. Not thrilled, but at least it is covered.

Thinking I will trade in on a GS just so I can start fresh
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Old May 7, 2017 | 05:10 PM
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Man hate to hear that on your car. But just put your mind at looking to the new one.
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Old May 7, 2017 | 08:42 PM
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^^^ Same here. Did you find out what caused the problem?

JV

Last edited by Steve Garrett; May 7, 2017 at 10:56 PM.
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Old May 7, 2017 | 11:08 PM
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It happened to me too with my 2017 Grand Sport w/ 2000 miles on it.

Here's the link to mine: 2017 GS Rod Knock New Engine

They gave me a new engine, but it ended up happening to the new engine too (what are the odds) so I traded the car in for my Z06. Now my Z06 w/ 700 miles has throttle issues below 4k. 3 engines and 3 problems -- how can this be??

I hope things go better for you
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Old May 8, 2017 | 05:14 PM
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Originally Posted by Jet Vet
^^^ Same here. Did you find out what caused the problem?

JV
Thrust bearing broke and the engine ate it


UPDATE: Just heard back from the dealer... after final diagnostics, the thrust bearing was gone...could not even find the pieces. 1/8 inch play in the crankshaft (HOLY CRAP) and cracked rod in #3 cylinder.

Last edited by imatur; May 8, 2017 at 05:28 PM.
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Old May 8, 2017 | 05:17 PM
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Originally Posted by angryBits
It happened to me too with my 2017 Grand Sport w/ 2000 miles on it.

Here's the link to mine: 2017 GS Rod Knock New Engine
That's definitely the sound!
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Old May 11, 2017 | 05:06 PM
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How many miles did you have on her when she let go?
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Old May 11, 2017 | 05:31 PM
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Originally Posted by akkutz
how many miles did you have on her when she let go?
38k

New Heart...

Last edited by imatur; May 11, 2017 at 05:33 PM.
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Old May 11, 2017 | 06:54 PM
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OP - out of curiosity, do you drive in Eco mode much?
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Old May 12, 2017 | 08:35 AM
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Originally Posted by angryBits
OP - out of curiosity, do you drive in Eco mode much?
Never have, never will
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Old May 12, 2017 | 11:21 AM
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Originally Posted by imatur
Never have, never will
Cool -- I was just wondering if it was AFM related.
Since you have an M7, V4 mode is only engaged while in Eco mode.
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