Low oil pressure - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

2010_camaro · 12-14-2015, 12:58 AM

Ok so I've noticed lately my oil pressure at idle is low. Before I would see 1.9-2.0bar now I'm seeing 1.4-1.5bar. I'm running the melling oil pump. Only think I've noticed is the lifters sound louder but nothing bad. Holds 3bar oil pressure on the highway.
Car runs fine.

JDP Sales · 12-14-2015, 01:42 PM

Did the pressure drop right after installing the Melling pump?

Jared Royce
888.308.6007

2010_camaro · 12-15-2015, 02:56 AM

No. I've had the pump all summer. Just hear recently I've been seeing the low pressure.

pir4te · 12-15-2015, 04:33 AM

Is 20 psi at warm idle considered low?

EDFHOBBIES · 12-15-2015, 06:10 AM

Mine is at 50 psi cold idle then about 37 psi when hot.. but I have a CAM and idle set to 750 rpm With a load its at right 70psi.. thats with a melling high pressure.
This is running the stock mobile oil that it calls for.

But, I want to say the pressures were higher a little and there wasn't such a noticeable psi change between hot and cold like there is now. mines been in about a year as well.

DaveZL1 · 03-02-2019, 10:51 AM

What came of this? My LSA is running about the same 1.6 bar. Normal?

2010_camaro · 03-03-2019, 07:07 AM

Quote:

Originally Posted by DaveZL1

What came of this? My LSA is running about the same 1.6 bar. Normal?

Main bearing failure.

Blueovalman · 03-03-2019, 08:48 PM

Quote:

Originally Posted by DaveZL1

What came of this? My LSA is running about the same 1.6 bar. Normal?

+1 Main bearing failure will eventually happen. When I hear about low oil pressure issues I always wonder what brand and weight motor oil and oil filter people are choosing to use?? I always recommend using Mobil 1 5W30 or Valvoline SynPower 5W30 synthetic motor oil and AC Delco oil filters.

Pro-tuned · 03-03-2019, 10:03 PM

Having a high pressure pump does nothing for idle pressure. Melling has 3 versions of pumps. Which one do you have? Also when it was installed was it done correctly (shimming while installing)? There could be many reasons for the loss of pressure (pickup tube O-ring, clogged pickup tube, worn pump, bearings, sensor,...) I would get oil analysis done to confirm engine wear before starting any tear down.

zz430camaro · 03-03-2019, 10:37 PM

Quote:

Originally Posted by Pro-tuned

Having a high pressure pump does nothing for idle pressure. Melling has 3 versions of pumps. Which one do you have? Also when it was installed was it done correctly (shimming while installing)? There could be many reasons for the loss of pressure (pickup tube O-ring, clogged pickup tube, worn pump, bearings, sensor,...) I would get oil analysis done to confirm engine wear before starting any tear down.

Exactly!

sixty9fordkiller · 03-04-2019, 04:20 PM

thread revived!

MrGazinya · 03-04-2019, 06:05 PM

My Melling just failed last month. Check valve stuck open. Drove from my house to the store, it was fine. When I got back in car and started it, I had no oil pressure.

lionssfan · 03-04-2019, 06:52 PM

Quote:

Originally Posted by MrGazinya

My Melling just failed last month. Check valve stuck open. Drove from my house to the store, it was fine. When I got back in car and started it, I had no oil pressure.

how long did you have yours before failing. i put mine in last year its been ok so far. I have the high pressure high volume mellings pump. i had 60000 miles when I installed mine.

MrGazinya · 03-05-2019, 03:43 AM

I had probably 12,000 miles on it. Thank god I was still parked when I was alerted, NO OIL PRESSURE.

12-14-2015, 12:58 AM	#1
2010_camaro Drives: 2014 Camaro SS Join Date: May 2011 Location: Florence, KY Posts: 2,238 View My Garage	Low oil pressure Ok so I've noticed lately my oil pressure at idle is low. Before I would see 1.9-2.0bar now I'm seeing 1.4-1.5bar. I'm running the melling oil pump. Only think I've noticed is the lifters sound louder but nothing bad. Holds 3bar oil pressure on the highway. Car runs fine. Attached Images __________________ MODS 6.0 forged iron block, TH400, B&M shifter, DSS axles & driveshaft, Viking / BMR suspension, Full custom fuel system with cell, Twin 76mm teriyaki tornados on 24lbs. https://www.instagram.com/whoopa_ss/

12-15-2015, 02:56 AM	#3
2010_camaro Drives: 2014 Camaro SS Join Date: May 2011 Location: Florence, KY Posts: 2,238 View My Garage	No. I've had the pump all summer. Just hear recently I've been seeing the low pressure. __________________ MODS 6.0 forged iron block, TH400, B&M shifter, DSS axles & driveshaft, Viking / BMR suspension, Full custom fuel system with cell, Twin 76mm teriyaki tornados on 24lbs. https://www.instagram.com/whoopa_ss/

12-15-2015, 04:33 AM	#4
pir4te Moonshiner Drives: Holden SS-V L77 flex fuel Join Date: May 2012 Location: Sydney, Australia Posts: 166	Low oil pressure Is 20 psi at warm idle considered low? __________________ Compression is King. Naturally as-pirated, all-motor, all alcohol.

12-15-2015, 06:10 AM	#5
EDFHOBBIES Dyno Show Queen LOL Drives: 16 SS & 17 ZL1 Both Yellow Join Date: Jan 2014 Location: Houston Posts: 4,345 View My Garage	Mine is at 50 psi cold idle then about 37 psi when hot.. but I have a CAM and idle set to 750 rpm With a load its at right 70psi.. thats with a melling high pressure. This is running the stock mobile oil that it calls for. But, I want to say the pressures were higher a little and there wasn't such a noticeable psi change between hot and cold like there is now. mines been in about a year as well. __________________ Kong Ported 2650, Crawford Racing Port Injection, Weapon X 112mm Adapter, NW112mm TB, Livernois Ported LT4 Heads, Lingenfelter GT32 stealth cam, Haltech Elite, and Carbon by Trufiber

03-03-2019, 10:03 PM	#9
Pro-tuned Angewendet Ingenieur Drives: 14 Camaro ZL1 Join Date: Apr 2015 Location: USA Posts: 401	Having a high pressure pump does nothing for idle pressure. Melling has 3 versions of pumps. Which one do you have? Also when it was installed was it done correctly (shimming while installing)? There could be many reasons for the loss of pressure (pickup tube O-ring, clogged pickup tube, worn pump, bearings, sensor,...) I would get oil analysis done to confirm engine wear before starting any tear down. __________________ ———— LQ9, Iron Block, Forged internals, 408CI, Jannetty custom cam, TS short block, Whipple, Hardened Jackshaft, PRC 260, 2X3 Dynatech Full Competition, HF Cats, CAI, NW 103, Chee, ID 1300, COPO Breather, MSD, Fore Dual Pump, ultratorque, E85, dual Meth, True Trac, 3:45, 1500hp axle-shafts, DSS CF, BMR, custom Pearl/Candy paint by Jaidah.

12-14-2015, 01:42 PM	#2
JDP Sales Drives: Chevys at the limit Join Date: Nov 2010 Location: SLC, UT Posts: 9,621	Did the pressure drop right after installing the Melling pump? Jared Royce 888.308.6007

03-02-2019, 10:51 AM	#6
DaveZL1 Drives: '15 ZL1 Join Date: Apr 2017 Location: Cecil Co. Maryland Posts: 36	What came of this? My LSA is running about the same 1.6 bar. Normal?

03-04-2019, 04:20 PM	#11
sixty9fordkiller Donkey Dick Cam Camaro Drives: 2010 2SS/RS LS3 M6 Join Date: Oct 2009 Location: Los Angeles, CA Posts: 1,998	thread revived! __________________ Bone Stock

03-04-2019, 06:05 PM	#12
MrGazinya Drives: Aggressive Join Date: Jul 2008 Location: Southampton, PA. Posts: 1,086	My Melling just failed last month. Check valve stuck open. Drove from my house to the store, it was fine. When I got back in car and started it, I had no oil pressure. __________________ Black 2SS RS LS3 Inferno Int. '17 1LE replica 20's {MODS} KOOKS LT: Borla S-Type: Roto-Fab CAI: Hurst ST.: PFADT Stage 2, Trailing arms, Tie Rods: ECS BigBlower Cam: Fast 102mm intake: Brian Tooley racing dual spring kit: TFS pushrod set: Katech C5R timing chain: Mellings high volume oil pump: ATI Balancer: Ideal performance upgraded clutch master cylinder:Tick performance upgraded slave cylinder/throwout bearing: Mantic 9000 twin disk clutch & light weight flywheel: Tuned by Doug Ring at ECS. 475RWHP/445RWTQ.Dynapack Dyno.

03-05-2019, 03:43 AM	#14
MrGazinya Drives: Aggressive Join Date: Jul 2008 Location: Southampton, PA. Posts: 1,086	I had probably 12,000 miles on it. Thank god I was still parked when I was alerted, NO OIL PRESSURE. __________________ Black 2SS RS LS3 Inferno Int. '17 1LE replica 20's {MODS} KOOKS LT: Borla S-Type: Roto-Fab CAI: Hurst ST.: PFADT Stage 2, Trailing arms, Tie Rods: ECS BigBlower Cam: Fast 102mm intake: Brian Tooley racing dual spring kit: TFS pushrod set: Katech C5R timing chain: Mellings high volume oil pump: ATI Balancer: Ideal performance upgraded clutch master cylinder:Tick performance upgraded slave cylinder/throwout bearing: Mantic 9000 twin disk clutch & light weight flywheel: Tuned by Doug Ring at ECS. 475RWHP/445RWTQ.Dynapack Dyno.