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01-20-2021, 02:57 PM
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#15 |
 Drives: 21' LTI, '18 Traverse, '15 Mazda 6 Join Date: Oct 2020
Location: At the end of the DHL/Amazon Runway, KY
Posts: 183
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So called again to get some clarification. Apparently my build date of 9/17/20 is within the TSB range so it sounds like they're going down that route first. Not sure what they had to rule out to get there.
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01-20-2021, 03:27 PM
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#16 | |
     
Drives: Crush ZLE M6 | 2000 Corvette FRC Join Date: Jun 2010
Location: Cencal
Posts: 1,659
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Quote:
I had the file pulled from my previous (healthy) 2019 ZR1. It had misfires logged despite never having a CEL. This is when I researched and learned about misfires in a bit more depth. I’d almost bet the house you had a valve springs(s) break. That will obviously cause the A/F to go whacky and log misfires. Hopefully it’s an easy spring set swap and you’re back on the road. |
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01-21-2021, 09:40 AM
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#17 |
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Drives: 21' LTI, '18 Traverse, '15 Mazda 6 Join Date: Oct 2020
Location: At the end of the DHL/Amazon Runway, KY
Posts: 183
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Is the LT1 and interference engine? If so I'm not sure I'm ok with them just leak-down testing the 1 cylinder and not actually inspecting the valves and piston for damage. And without testing the other cylinders it could be "in spec" but still less then the others... right?
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01-22-2021, 08:22 AM
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#18 |
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Drives: 21' LTI, '18 Traverse, '15 Mazda 6 Join Date: Oct 2020
Location: At the end of the DHL/Amazon Runway, KY
Posts: 183
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I guess after 4 days they finally found the time to pull the Valve cover and confirm the broken spring. Cylinder passed the leakdown test so there shouldn't be any other damage as I'm sure the odds of the valve kissing the piston without bending the valve are astronomically small.
Service advisor apparently didn't know the difference between a Valve and a Piston. Hopefully the Mechanic is much better qualified. 
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01-22-2021, 12:01 PM
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#19 | |
       
Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017
Location: East Tennessee
Posts: 11,601
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Quote:
 I don't think a dealership would want trainees or junior techs to open up an LT1 engine, but it may still be worth talking to the service manager, expressing your concern about such an early failure (that they SHOULD have anticipated and fixed proactively, the TSB has been out for quite a while) and asking for a good bunch of before/after photos of the repairs done.
__________________
2018 Camaro 2SS — G7E MX0 NPP F55 IO6
735 rwhp | 665 rwtq Magnuson TVS 2300 80mm pulley | Kooks 1 7/8" LT headers | JRE smooth idle terminator cam | LT4 FS & injectors | TSP forged pistons & rods JMS PowerMAX | DSX flex fuel kit | Roto-Fab CAI | Soler 95mm LT5 TB | 1LE wheels | 1LE brakes | BMR rear cradle lockout | JRE custom tune 1100 - 1/30/18 | 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 | 3800 - 2/26/18 4300 - 2/27/18 | 4B00 - 3/01/18 4200 - 3/05/18 | 4800 - 3/14/18 5000 - 3/16/18 | 6000 - 3/19/18 |
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01-22-2021, 01:34 PM
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#20 |
Drives: 2024 2SS Join Date: Dec 2013
Location: SoCal
Posts: 602
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Ask for a Extended warranty for no charge
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01-26-2021, 11:44 PM
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#21 |
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Drives: 18 Ford Raptor, 21 2SS 1LE M6 Join Date: Dec 2020
Location: SoCal
Posts: 127
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My SS 1LE was built 9/20 and have put 1,400 miles on it in a month and probably 300-400 of them have been highway pulls or mountain driving in 2nd and 3rd gear. No issues yet and it revs like a beast on every on ramp.
 I am sure they will get her back on the road and screaming through the gears.
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