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07-21-2023, 01:47 PM
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#1 |
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2022 Vivid Orange ZL1 1LE
Drives: Firebirds - 1970,1974,1997,1999 Join Date: May 2018
Location: San Jose
Posts: 17
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Fixing Frozen Lifter
I am in week 10 of my specialty Chevy dealer fixing my frozen lifter. According to my trusted GMC dealer this happens to the Camaros and Cadillacs. Motor went limp with "service rear end soon" message and the end of my third track day in a row. Temperatures all perfect.
1) Waiting for lifters, replace the entire bank 2) Debugging ignition codes 3) OOPS, bent push rod 4) Head needs to be sent out to a local shop 5) 15% of time the cam is damaged, was it checked? Lower rev limiter to save motor? 2022 ZL1 1LE 6 speed Track prepped per GMC guide Track Camber set 10 track days (Road courses) 4800 miles |
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07-21-2023, 02:01 PM
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#2 |
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fo'shizZL1
Drives: 2017 ZL1 Join Date: Aug 2017
Location: ATL
Posts: 1,291
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That stinks, man!
__________________
2017 ZL1 M6 Black | Maggie 2650 // 103TB // Big Gulp // CSP LT's & Ultra Cats // Elite Ultra CC // BMR MM
Past Rides- 2014 ZL1 M6 Red Hot | Tons of mods 2004 CTS-V M6 Silver | Many mods 1995 Corvette M6 Torch Red | A few more mods 1992 Camaro M5 White | A few mods |
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07-22-2023, 11:18 AM
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#3 |
 
Drives: 18 ZL1-1LE, 10 JKU Join Date: Jul 2018
Location: AR
Posts: 585
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Because gm used the ac Delco lifters with the solenoid in them even in our cars which do not have the AFM/DOD(I forget the name) active. It sucks. Only way to really fix is different lifters and that ain't happening under warranty
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07-22-2023, 12:43 PM
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#4 |
   Drives: 2018 Camaro ZL1 Join Date: Aug 2018
Location: Georgia
Posts: 1,380
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So this is something that happens to the Camaro and Cadillac engines? This is the first time I've heard of an LT4 (for the ZL1) having this issue.
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07-22-2023, 12:50 PM
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#5 |
        
Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017
Location: East Tennessee
Posts: 11,696
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It's very infrequent on cars that have DoD (AFM) deactivated, OP is really unfortunate
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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 Last edited by arpad_m; 07-22-2023 at 10:04 PM. |
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07-23-2023, 08:17 AM
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#6 |
 
Drives: F-Series Canyonero Join Date: Nov 2020
Location: Toronto
Posts: 61
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I think I have read on the forum that there are no aftermarket lifters available for our cars with stock cam. That was a few years ago. Is this still true?
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08-20-2023, 11:43 PM
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#7 |
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2022 Vivid Orange ZL1 1LE
Drives: Firebirds - 1970,1974,1997,1999 Join Date: May 2018
Location: San Jose
Posts: 17
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Pumpkin back on the track
My 2022 ZL1 1LE Vivid Orange Camaro is back on the street after 13 weeks!!! Turned out that multiple lifters were frozen during the repair process. Also bent pushrods were found. Heads and cam is OK. Still having problems filling the beast with gas. I will engage a dealer with your suggestions after my track days at Laguna Seca and ThunderHill. I can't stand being off the track and stuck in the dealer!
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