09-01-2018, 01:39 PM | #1 |
Drives: 1LE Join Date: Dec 2016
Location: Iowa
Posts: 123
|
2017 1LE Valvetrain Failure 31,748 Miles
I noticed a light knocking tied directly to Engine RPM that was most easily heard above 3,500 RPM. This noise developed ~3 weeks after my last track day. I took it to the dealership with a catch can installed and the recommended track oil in the crankcase. I would have returned it completely to stock had I thought it was an internal engine issue. The dealership replaced the camshaft and lifter rod due to failure of the #8 cam lobe for the exhaust valve. They referenced TSB #15-06-01-002F which I believe is related to high rev operation of manual vehicles. The only way the engine could have been over revved would be mechanically on a downshift because of the electronic rev limiter on the upshifts. The repairs were completed under warranty without an issue. There was a post-it note on their copy that said "extra parts" probably in reference to the catch can. The service advisor is aware the car is used on the track.
My car has to be one of the higher mile 2017 1LE's out there. I'm wondering if anyone else has had a similar problem? |
09-01-2018, 01:53 PM | #2 | |
Drives: 22' Porsche PDK GT4 Join Date: Mar 2018
Location: Bay Area
Posts: 2,014
|
Quote:
I had an 09' Z06 with the LS7 that was lemon lawed @ 11K miles because of bent exhaust valves and premature valve guides wear. I sure hope that doesn't become an issue on this motor and that this was an isolated incident.
__________________
Current:
22' Porsche PDK GT4 (MCS 2-way remote dampers) Previous: 18' NFG 2SS 1LE (ZL1 1LE solid rear cradle bushings & Corsa Exhaust) 16' F80 M3 (Ohlin R/T Coilovers) 13' Audi TTRS (APR Stage 1, MSS Springs) 09' C6 Z06 08' E90 M3 06' 335i (KW V2 Coilovers) 03' C5 Z06 |
|
09-01-2018, 03:18 PM | #3 |
|
Looks like a common issue on a lot of models
15-06-01-002F: Engine Misfire/Tick Noise. Malfunction Indicator Lamp (MIL) Illuminated With DTC P0300 Set – 2014-2018 Cadillac, Chevrolet & GMC https://gm.oemdtc.com/3656/15-06-01-...-chevrolet-gmc |
09-01-2018, 05:10 PM | #4 |
Drives: 2017 Camaro 1LE Hyper Blue Join Date: Apr 2017
Location: Rockville, Maryland
Posts: 373
|
Had a lifter collapse only, no cam damage, at 1700 miles right after my first track day, 30,000 less miles than yours. Fixed under warranty. I have done two track days since, no reoccurrence. Only have 3900 miles total on the car.
|
09-01-2018, 05:40 PM | #5 |
Drives: '18 1SS 1LE Join Date: Sep 2017
Location: Pennsyltucky
Posts: 2,571
|
The AFM lifters are a known weak point and one of the first things upgraded when an engine is opened.
Now cam lobe failure, that's usually from lifter roller failure or the lifter spinning in the bore.
__________________
'18 1SS 1LE Black, PDR
|
09-01-2018, 06:28 PM | #6 |
Drives: 1LE Join Date: Dec 2016
Location: Iowa
Posts: 123
|
It does make sense it's a part or design issue with the valvetrain verses over revving. There are only 3 to 4 track days on the car since I bought it. I asked if they could look back at the computer to see when the issue happened and they either couldn't or didn't want to make the effort. The car didn't ever throw a code....
|
09-01-2018, 06:51 PM | #7 |
CamaroFans.com
|
You dodged a bullet with that catch can. Glad it got fixed
|
09-01-2018, 08:33 PM | #8 |
Drives: ex-wife's car Join Date: Jan 2011
Location: Iowa
Posts: 255
|
The "extra parts" is the tech installed parts that may not have been part of that repair. Otherwise he may have seen something that also might of needed to be replaced.
|
09-05-2018, 03:12 PM | #9 |
Drives: 2017 1LE Join Date: Jul 2016
Location: Michigan
Posts: 393
|
In response to your last question I'm about to hit 36k miles on mine and have 5 track days on the car so far. No noticeable knock, all I hear (I think/hope) is the usual LT1 sounds. This post makes me nervous LOL. The urge to throw on some bolt-ons is real but I also like my warranty. Glad you got yours fixed and hope it continues to run well.
__________________
17 Summit White SS 1LE PDR / Borla S type Catback / XPEL Ultimate PPF
|
09-10-2018, 07:08 PM | #10 |
Scientific negotiator
Drives: 2019 Grand Sport Join Date: Mar 2017
Location: Forsyth, GA
Posts: 873
|
I was thinking that too... I've always had a catch can installed on every car, but am not doing it on the ZL1 1LE just for this reason.
If the valves look bad after 50k I will do a heads/cam/pulley/headers upgrade then and start over without worrying about the warranty!
__________________
2019 Grand Sport M7
2018 ZL1 1LE 6MT 2017 SS 1LE 6MT . Matthew 25:40 ΜΟΛΩΝ ΛΑβΕ |
09-11-2018, 01:56 AM | #11 |
Drives: 2018 2SS 1LE Join Date: Jul 2018
Location: Birmingham, AL
Posts: 117
|
I hope I have a dealer as good as yours if I ever have a problem. I don't have a lot of confidence in the dealership I bought my car through.
|
09-11-2018, 07:11 PM | #12 |
Drives: '16 Camaro SS 6 spd manual transm. Join Date: Aug 2012
Location: RGV Texas
Posts: 1,463
|
Lifters on my '14 Corvette Z51 were replaced at 34k, after noise coming out from my engine (is the same engine as the Camaro SS). I don't track my car and it's automatic. No over revs.
__________________
'16 Camaro SS
Prior cars: '14 Corvette C7 Stingray Z51 '14 Camaro ZL1 w/. Recaro seats '11 Mustang GT 5.0 w. track package '02 Porsche 911 Carrera '05 Infiniti G35 coupe sport |
09-11-2018, 09:26 PM | #13 |
Drives: 2015 Camaro 1SS Join Date: Dec 2017
Location: Antelope, CA
Posts: 208
|
Don't think a dealer would deny warranty work because of a catch can. Plus they would have to prove it was the cause of the problem.
|
09-11-2018, 10:08 PM | #14 | |
CamaroFans.com
|
Quote:
|
|
|
|
Post Reply
|
|
|