01-24-2022, 06:34 PM | #15 | |
Drives: ex-wife's car Join Date: Jan 2011
Location: Iowa
Posts: 255
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01-24-2022, 07:19 PM | #16 |
Drives: 2019 ZL1 Riverside Join Date: Apr 2020
Location: Charlotte, NC
Posts: 1,138
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01-27-2022, 02:23 PM | #17 | |
Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017
Location: East Tennessee
Posts: 11,627
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Quote:
Of course this is just one forum thread, but given how many 2017-2018 failures were recorded there, it's a good indication.
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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 |
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03-10-2022, 06:55 PM | #18 |
THE GREEN GOBLIN
Drives: 2020 ZL1 Rally Green Met.10 Spd AT Join Date: Apr 2012
Location: Harrison, NY
Posts: 158
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Had my car towed into dealer on Tuesday. No oil pressure, 0 on the gauge.
Just got the call from the dealer. The low oil pressure was caused by a bad oil pump. They changed the oil pump in my car. The invoice states "Found Pump Exploded". 2020 ZL1 10 spd auto 15,000 miles.
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Rally Green Metallic, Sun Roof, 10 Speed Automatic.
Mild 2 Wild exhaust controller, Brandmotion Curb Alert. More to come. |
03-10-2022, 07:15 PM | #19 |
Drives: 2018 ZLE Join Date: Feb 2018
Location: Palm City Fl
Posts: 1,348
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When my warranty is up and I decide to do some upgrades I’ll definitely go after market oil pump.
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03-10-2022, 08:04 PM | #20 | |
Drives: 2019 ZL1 Riverside Join Date: Apr 2020
Location: Charlotte, NC
Posts: 1,138
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03-10-2022, 08:10 PM | #21 |
Drives: 1985 Z28 Join Date: Aug 2020
Location: Florida
Posts: 125
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Very sad to see cars with such low miles with a bad oil pump.
Zander was wise to immediately get rid of his car after repairs. |
03-10-2022, 08:36 PM | #22 |
Drives: 2016 Mazda6, 2011 Mustang 5.0 Join Date: Mar 2010
Location: Portage, Wisconsin
Posts: 4,049
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Is this a ZL1 LT4 specific issue, or is it a thing on the SS LT1 as well? What would you guess is the failure rate per 1000 cars?
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03-11-2022, 09:23 AM | #23 | |
@zle_blackwing
Drives: 2018 ZL1 1LE Join Date: Mar 2017
Location: S OC
Posts: 1,390
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Quote:
It's the same pump but perhaps, the LT4 puts more of a strain on it.
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2018 ZL1 1LE - Red Hot, Nav, PDR
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03-11-2022, 10:43 AM | #24 |
Drives: Hyper Blue 2016 2SS 6M Join Date: Sep 2017
Location: North Ga
Posts: 1,787
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This certainly appears to be the case. In sddition to the LT1& Lt4, most trucks and suv's use this pump and you don't hear of many failures. The pump holds up pretty well in NA applications. There are lots of high mileage trucks out there, if these were failing at the same rate as on the LT4, we would be looking at thousands of failures.
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Baby Blue
2016 Hyper Blue 2SS/6m/MRC/NPP/Silver Rally stripes/ZL1 wheels & brakes/GForce DS and axles/ZLE Cradle Bushings/FE4 ARB front & rear/SEMA Grill/Rotofab dry/95mm TB/Magnuson 2300/Full LT4 fuel system/JMS boost-a-pump/E85 Sensor/Ported CID heads from LME/Cammotion PD cam/Thompson Motorsports forged shortblock/catted Kooks 1 7/8 headers /JRE remote tuned |
03-11-2022, 12:12 PM | #25 | |
Drives: 2019 ZL1 Join Date: Mar 2019
Location: NJ
Posts: 1,534
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Quote:
You do realize there's tens of thousands of these cars sold right? lol. 1 Guy has a failed pump on a 2020 and you lose your shorts over it.
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03-11-2022, 02:00 PM | #26 | |
Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017
Location: East Tennessee
Posts: 11,627
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Quote:
There will always be flawed individual components and occasional freak failures.
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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 |
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03-11-2022, 02:01 PM | #27 |
Drives: 2003 Monte Carlo SS SLP, 2022 ZL1 Join Date: Aug 2021
Location: Los Angeles, CA
Posts: 486
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03-12-2022, 09:59 PM | #28 |
Drives: 2019 ZL1 Riverside Join Date: Apr 2020
Location: Charlotte, NC
Posts: 1,138
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The oil pump gear is a weak point, that isn't up for debate - they get stress fractures in some cars and later "explode". Clearly there is a materials problem. Again my theory is owners pushing the engine too hard before 10 quarts of cold oil are up to temp, which takes a long time
The gear was not changed on the '19+ model years according to Katech, so the "19+ and you have nothing to worry about" theory is shot at this point imo Not "losing my shorts" - completely legitimate cause for concern if you're out of warranty. BIG price tag and possible damage to other parts of the engine. |
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