ZERO Oil Pressure 2016 SS - Page 2

SteveV · 08-12-2019, 04:41 PM

No, the oil pump is not electric. It is mechanical. It is driven off of the front of the crankshaft.

Look at item #33 on this drawing: https://www.thatgmpartsguy.com/oem-p...bC12OC1nYXM%3D

TheBusDriver · 08-12-2019, 04:42 PM

Mmmmmm.... No...
They've been using the same style mechanical oil pumps that run off the front of the crankshaft since the LS generations.

These can fail in a number of ways.

-Pressure relief is done mechanically with a plunger and spring surrounded by oil. If ANY piece of tiny shrapnel comes in contact with that plunger and the wall, the plunger will stick and oil will infinitely cycle through the pump, not the motor.

-The o-ring that seals the pickup tube to the pump can be inserted heinously at the factory, and cause a slight tear that gets worse over time. This will typically cause a gradual loss of oil pressure over time, potentially until the rip gives way completely and causes 0 psi of pressure.

-The center gears can grenade, that happens often too.

It's interesting that almost ALL reports state that oil pressure hits 0 while idling, not usually while driving.

Part no.: EP295

TheBusDriver · 08-12-2019, 04:48 PM

Quote:

Originally Posted by SteveV

No, the oil pump is not electric. It is mechanical. It is driven off of the front of the crankshaft.

Look at item #33 on this drawing: https://www.thatgmpartsguy.com/oem-p...bC12OC1nYXM%3D

Correct.

SteveV · 08-12-2019, 04:50 PM

What really bugs me the most is that you cannot find an aftermarket oil pump for the LT1 or LT4 yet. The LT1 has been around since 2015 in the Vette. And Melling doesn't make one yet. What a bummer...

If my car was out of warranty, and the oil pump went, why the hell would I want to put another stock one back on? I'd want a higher quality aftermarket one.

Oh well...

MaxxRPM · 08-12-2019, 04:55 PM

Quote:

Originally Posted by SteveV

No, the oil pump is not electric. It is mechanical. It is driven off of the front of the crankshaft.

Look at item #33 on this drawing: https://www.thatgmpartsguy.com/oem-p...bC12OC1nYXM%3D

Thanks.

…………...I knew there was something different about them compared to internal oil pumps. I didn't know Chevy was doing this all the way back on the LS1s...………...I've been out of Chevy a long time.

TheBusDriver · 08-12-2019, 05:49 PM

Quote:

Originally Posted by SteveV

What really bugs me the most is that you cannot find an aftermarket oil pump for the LT1 or LT4 yet. The LT1 has been around since 2015 in the Vette. And Melling doesn't make one yet. What a bummer...

If my car was out of warranty, and the oil pump went, why the hell would I want to put another stock one back on? I'd want a higher quality aftermarket one.

Oh well...

Yeah it is rather nuts that there STILL isn't a bulletproof aftermarket solution for this oil pump. It's on SO many engines, and it obviously isn't reliable.
I think part of the issue is that redesigning this pump with one that would bolt straight on would be very difficult; the design of this one is horrible and there's not much that can be done to fix all of the issues with it.

The first company to make a bulletproof oil pump (if ever) will be making money hand over fist.

TheBusDriver · 08-17-2019, 09:53 AM

Update:

It's now been a week and all they've accomplished is an oil pressure test.

I still don't have a loaner car, either.

This is gonna be bumpy.

SteveV · 08-17-2019, 10:03 AM

Dude that sucks. Best of luck. Hope it works out in the end.

TheBusDriver · 08-20-2019, 01:22 PM

Update:

They were able to pull my car in yesterday (monday) and deducted that the oil pump had seized, but no shrapnel as far as I know? It was sort of unclear as the technician was gone already.

Apparently their current plan is to throw a new oil pump on and do another pressure test and listen for strange noises. If oil pressure is lower than it should be and/or there are any strange noises, they will tear the motor down.

Also, finally got a loaner car.

Umbriel · 08-20-2019, 01:44 PM

Just to show you how bad GM is about warranty I had a 2001 WS6 that the clutch started slipping in and I took it to the dealer and they denied it because I had lowered the car by 1.5 inches.

L78toLT1 · 08-20-2019, 02:30 PM

Here's a pic of the oil pump without the front plate

Emoto · 08-20-2019, 02:58 PM

Hope they do right by you, OP!

What are you guys seeing for a "normal" oil pressure at idle?

Rayvan · 08-20-2019, 04:14 PM

Quote:

Originally Posted by L78toLT1

Here's a pic of the oil pump without the front plate

That looks very different than the LS pump I removed/replaced in my kids G8GT. It bolts up the same, but the drive was much simpler in the LS motors

Below is a pic of what I remember in the LS3 type pump. I wonder why they went away from this?

https://www.powernationtv.com/two-mi...an-ls-oil-pump

TheBusDriver · 08-20-2019, 08:14 PM

Hmmm, wish I could get a picture or something from the tech who pulled mine off to see what failed. I'd like to talk with him at least. If I do, I'll post about the findings.

I might assume those tabs that the 'gear' corresponds with could shear? Or maybe even round out the inner teeth that are very short. Who knows, we'll need some pics and descriptions of failures in the coming future.

I'm worried about this thing failing again once the PT warranty is out in 1.5 years.

08-12-2019, 04:41 PM	#15
SteveV Drives: 2018 ZL1 Camaro 6M Red Hot Join Date: Aug 2013 Location: Cary, NC Posts: 1,137 View My Garage	No, the oil pump is not electric. It is mechanical. It is driven off of the front of the crankshaft. Look at item #33 on this drawing: https://www.thatgmpartsguy.com/oem-p...bC12OC1nYXM%3D __________________ People are a lot like slinky's: not very helpful most of the time, but they bring a smile to your face when pushed down the stairs...

08-12-2019, 04:42 PM	#16
TheBusDriver Drives: 2016 2SS (M6) Join Date: Jun 2018 Location: Bethesda, MD Posts: 94	Mmmmmm.... No... They've been using the same style mechanical oil pumps that run off the front of the crankshaft since the LS generations. These can fail in a number of ways. -Pressure relief is done mechanically with a plunger and spring surrounded by oil. If ANY piece of tiny shrapnel comes in contact with that plunger and the wall, the plunger will stick and oil will infinitely cycle through the pump, not the motor. -The o-ring that seals the pickup tube to the pump can be inserted heinously at the factory, and cause a slight tear that gets worse over time. This will typically cause a gradual loss of oil pressure over time, potentially until the rip gives way completely and causes 0 psi of pressure. -The center gears can grenade, that happens often too. It's interesting that almost ALL reports state that oil pressure hits 0 while idling, not usually while driving. Part no.: EP295 Attached Images

08-12-2019, 04:50 PM	#18
SteveV Drives: 2018 ZL1 Camaro 6M Red Hot Join Date: Aug 2013 Location: Cary, NC Posts: 1,137 View My Garage	What really bugs me the most is that you cannot find an aftermarket oil pump for the LT1 or LT4 yet. The LT1 has been around since 2015 in the Vette. And Melling doesn't make one yet. What a bummer... If my car was out of warranty, and the oil pump went, why the hell would I want to put another stock one back on? I'd want a higher quality aftermarket one. Oh well... __________________ People are a lot like slinky's: not very helpful most of the time, but they bring a smile to your face when pushed down the stairs...

08-17-2019, 10:03 AM	#22
SteveV Drives: 2018 ZL1 Camaro 6M Red Hot Join Date: Aug 2013 Location: Cary, NC Posts: 1,137 View My Garage	Dude that sucks. Best of luck. Hope it works out in the end. __________________ People are a lot like slinky's: not very helpful most of the time, but they bring a smile to your face when pushed down the stairs...

08-20-2019, 02:30 PM	#25
L78toLT1 Drives: Hyper Blue 2016 2SS 6M Join Date: Sep 2017 Location: North Ga Posts: 1,787	Here's a pic of the oil pump without the front plate Attached Images __________________ 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

08-17-2019, 09:53 AM	#21
TheBusDriver Drives: 2016 2SS (M6) Join Date: Jun 2018 Location: Bethesda, MD Posts: 94	Update: It's now been a week and all they've accomplished is an oil pressure test. I still don't have a loaner car, either. This is gonna be bumpy.

08-20-2019, 01:22 PM	#23
TheBusDriver Drives: 2016 2SS (M6) Join Date: Jun 2018 Location: Bethesda, MD Posts: 94	Update: They were able to pull my car in yesterday (monday) and deducted that the oil pump had seized, but no shrapnel as far as I know? It was sort of unclear as the technician was gone already. Apparently their current plan is to throw a new oil pump on and do another pressure test and listen for strange noises. If oil pressure is lower than it should be and/or there are any strange noises, they will tear the motor down. Also, finally got a loaner car.

08-20-2019, 01:44 PM	#24
Umbriel Drives: 2016 Camaro SS Join Date: Sep 2018 Location: Bartlett, TN Posts: 1,121	Just to show you how bad GM is about warranty I had a 2001 WS6 that the clutch started slipping in and I took it to the dealer and they denied it because I had lowered the car by 1.5 inches.

08-20-2019, 02:58 PM	#26
Emoto Sure, why not? Drives: 2016 Camaro 2SS, Jeep JKU Rubicon Join Date: Mar 2015 Location: SE Mass Posts: 1,538	Hope they do right by you, OP! What are you guys seeing for a "normal" oil pressure at idle? __________________ This is that witty and clever statement that makes you chuckle.

08-20-2019, 08:14 PM	#28
TheBusDriver Drives: 2016 2SS (M6) Join Date: Jun 2018 Location: Bethesda, MD Posts: 94	Hmmm, wish I could get a picture or something from the tech who pulled mine off to see what failed. I'd like to talk with him at least. If I do, I'll post about the findings. I might assume those tabs that the 'gear' corresponds with could shear? Or maybe even round out the inner teeth that are very short. Who knows, we'll need some pics and descriptions of failures in the coming future. I'm worried about this thing failing again once the PT warranty is out in 1.5 years.

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