Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com
 
ModBargains
Go Back   Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com > Engine | Drivetrain | Powertrain Technical Discussions > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing

Mechanical Maintenance: Break-in / Oil & Fluids / Servicing Discussions on mechanical maintenance and servicing of your Camaro

Reply
 
Thread Tools
Old 11-14-2009, 03:04 PM   #1
Maclain
 
Drives: 2LT
Join Date: Sep 2009
Location: South
Posts: 19
Oil Pressure Spike on V6 ?

Hey folks,

My 2LT V6 now has 1,000 miles on it... had the dealership change the oil at 500mi, they put in 10w30, next day I had a different dealership drain it and put in 5w30. I have broken it in under load, per Darin etc.

Problem: At a dead stop, my Oil Pressure guage reads about halfway between the first hash mark and 30 p.s.i. When I accelerate slowly, using about 1/3rd throttle, the Oil Pressure guage climbs to max at 70 p.s.i., actually just a hair over the max pressure mark. It takes it about 3 or 4 seconds to do this. When I take my foot off the gas, the needle slowly falls back down.

This can't be right.

I called the dealership, and they said something is wrong, and I need to drop it off monday.

Is this kind of pressure, the way I have been driving it WOT (after engine and tranny warmed up fully), going to screw something up long term?

Thanks in advance for the help

-- Mac

Last edited by Maclain; 11-14-2009 at 06:40 PM. Reason: edit: just for clarification, it is "pegging" the Oil Pressure guage at 70 when I give it gas.
Maclain is offline   Reply With Quote
Old 11-14-2009, 03:39 PM   #2
Dave the Mule
 
Dave the Mule's Avatar
 
Drives: 2LT/RS
Join Date: Sep 2009
Location: Texas
Posts: 21
My 2LT now has about 1000 miles on it. It shows 70 when the engine is cold but works its way back down to around 30 when it warms up. I think I read somewhere on one of these threads that a 70 psi reading some of the time is normal.

It's good you drained out the 10w30 and put the proper 5w30 back in. I doubt that the thicker oil did any damage.
Dave the Mule is offline   Reply With Quote
Old 11-14-2009, 04:38 PM   #3
RickRay
INJACC
 
RickRay's Avatar
 
Drives: 2010 CGM 2LT/RS AUTO
Join Date: Jan 2009
Location: Montreal (South Shore)Quebec, Canada
Posts: 5,846
My dealer said it was OK He said this Gauge is very precise.....
Mine goes to 70 every time I give it gas.
RickRay is offline   Reply With Quote
Old 11-14-2009, 07:52 PM   #4
alan422
 
Drives: Rally Yellow LT2 RS
Join Date: Mar 2009
Location: Liverpool, NY
Posts: 87
Quote:
Originally Posted by Dave the Mule View Post
My 2LT now has about 1000 miles on it. It shows 70 when the engine is cold but works its way back down to around 30 when it warms up. I think I read somewhere on one of these threads that a 70 psi reading some of the time is normal.

It's good you drained out the 10w30 and put the proper 5w30 back in. I doubt that the thicker oil did any damage.
Mine does the same thing... Up to 70 psi when cold then works down to 30 when its warmed up.
alan422 is offline   Reply With Quote
Old 11-15-2009, 12:19 PM   #5
Maclain
 
Drives: 2LT
Join Date: Sep 2009
Location: South
Posts: 19
But when it's warmed up completely, do your engines climb to max pressure when u accelerate ?


edit: RickRay, did you talk to a service manager, a salesman, or one of the mechanics at the dealership?


I just can't imagine this could be normal.... I would think that if the pressure climbing to 70 psi was normal, then the guage would go to 100 psi max or something like that.

This worries me, and I don't trust the dealership people here in the Houston area.


-- Mac
Maclain is offline   Reply With Quote
Old 11-15-2009, 03:08 PM   #6
Darin Morgan
Reher Morrison Racing
 
Darin Morgan's Avatar
 
Drives: Inferno Orange SS/RS
Join Date: Jul 2009
Location: Arlington TEXAS
Posts: 250
I have some questions.

(1) Did the oil pressure "problem" occur after you changed the oil but was not present before you changed the oil?

(2) You guys are say that its at about 70psi cold. What are you guys calling "cold"?

(3)Did the car do this oil pressure dance from day one,or it started later?


The bottom line here is that it could be a multitude of factors BUT if it has not hurt anything yet, it probably never will. The hydrodynamic pressure that the bearing "floats" on has far less to do with pressure than you might think. Oil flow is just as important to bearing life. Flow cools the bearing and pressure feeds just feeds the flow. The amount of pressure can be relative to viscosity, oil gallery layout, bad oil filter bypass or blocked passage. Having high Pressure doesn't mean your safe. Look at it this way,,,. If you block all the oil off to all the bearings in the engine, you have all the pressure in the world and no flow! If you have good pressure and the oil heats up, it can mean that the flow has picked up due to a reduction in viscosity and the pump is working less to pump it. It can also mean you have a big time problem! The good news is, if you had a big time problem it would have shown its ugly face in the milliseconds it takes to burn a bearing which kills anywhere from 65hp to 125hp right before it snaps a rod in two or seizes the engine. The power drop from a burnt bearing is VERY noticeable.
__________________
2010 Camaro SS/RS IOM, 475rwhp 415ft/lbs Cam-232°/245° .612 .612 113LSA. Precision 3500 stall, New Era CAI. Reher Morrison Heads, Manifold and TB. Ferrea H-stems, dual springs, Ti-retainers. American Racing long tubes-Xpipe, High flow CATs, "S"type Borla's. 160F Thermo.
VVT ACTIVE! Thanks to New Era Performance!



Darin Morgan
-Induction R&D-EFI calibration
Reher-Morrison Racing Engines
http://www.rehermorrison.com/rmSale3.htm
Phone 817-467-7171
cell 682-559-0321



Darin Morgan is offline   Reply With Quote
Old 11-15-2009, 04:44 PM   #7
RickRay
INJACC
 
RickRay's Avatar
 
Drives: 2010 CGM 2LT/RS AUTO
Join Date: Jan 2009
Location: Montreal (South Shore)Quebec, Canada
Posts: 5,846
Quote:
Originally Posted by Darin Morgan View Post
I have some questions.

(1) Did the oil pressure "problem" occur after you changed the oil but was not present before you changed the oil?

(2) You guys are say that its at about 70psi cold. What are you guys calling "cold"?

(3)Did the car do this oil pressure dance from day one,or it started later?


The bottom line here is that it could be a multitude of factors BUT if it has not hurt anything yet, it probably never will. The hydrodynamic pressure that the bearing "floats" on has far less to do with pressure than you might think. Oil flow is just as important to bearing life. Flow cools the bearing and pressure feeds just feeds the flow. The amount of pressure can be relative to viscosity, oil gallery layout, bad oil filter bypass or blocked passage. Having high Pressure doesn't mean your safe. Look at it this way,,,. If you block all the oil off to all the bearings in the engine, you have all the pressure in the world and no flow! If you have good pressure and the oil heats up, it can mean that the flow has picked up due to a reduction in viscosity and the pump is working less to pump it. It can also mean you have a big time problem! The good news is, if you had a big time problem it would have shown its ugly face in the milliseconds it takes to burn a bearing which kills anywhere from 65hp to 125hp right before it snaps a rod in two or seizes the engine. The power drop from a burnt bearing is VERY noticeable.

1) To be honest I only noticed it after the oil Change..
2) The initial start of the day or many hours of shut eye..
3) See # 1....Hopefully someone else could answer that one before the oil change!!!
RickRay is offline   Reply With Quote
Old 11-15-2009, 04:47 PM   #8
bluecamaroguy
 
bluecamaroguy's Avatar
 
Drives: 2010 2LT/RS ABM!
Join Date: May 2009
Location: san diego
Posts: 254
Mine does this everytime I hit the gas. Over 2k miles now.
bluecamaroguy is offline   Reply With Quote
Old 11-15-2009, 04:49 PM   #9
RickRay
INJACC
 
RickRay's Avatar
 
Drives: 2010 CGM 2LT/RS AUTO
Join Date: Jan 2009
Location: Montreal (South Shore)Quebec, Canada
Posts: 5,846
Quote:
Originally Posted by Maclain View Post
But when it's warmed up completely, do your engines climb to max pressure when u accelerate ?


edit: RickRay, did you talk to a service manager, a salesman, or one of the mechanics at the dealership?


I just can't imagine this could be normal.... I would think that if the pressure climbing to 70 psi was normal, then the guage would go to 100 psi max or something like that.

This worries me, and I don't trust the dealership people here in the Houston area.


-- Mac
A salesman, who asked one of the mechanics..

I PM fbodfather with this dilemma awhile back but did not get an answer. I was hoping one of the GM engineers would give us a straight answer.
RickRay is offline   Reply With Quote
Old 11-15-2009, 05:54 PM   #10
scrming
Red Brick of Vengeance!
 
scrming's Avatar
 
Drives: 12 Second Brick
Join Date: Jun 2009
Location: at my pulpit
Posts: 7,729
Hmmm... I see if I can datalog my oil pressure...
scrming is offline   Reply With Quote
Old 11-15-2009, 07:24 PM   #11
Maclain
 
Drives: 2LT
Join Date: Sep 2009
Location: South
Posts: 19
Quote:
Originally Posted by Darin Morgan View Post
I have some questions.

(1) Did the oil pressure "problem" occur after you changed the oil but was not present before you changed the oil?

(2) You guys are say that its at about 70psi cold. What are you guys calling "cold"?

(3)Did the car do this oil pressure dance from day one,or it started later?

Darin, thanks for responding.

(1) I don't know.... I was not watching the pressure guage before the oil change.

(3) Again, don't know. I only watched the pressure guage after the 500 mile oil change. I was only concerned with the oil temp and tranny temp guages, making sure everything was warm before I started loading the engine.

I'm taking it to the dealership tomorrow and leaving it with them, because the service manager talked to one of his mechanics who thought it "didn't sound right." Maybe this is normal.... I just thought that if it was normal for the oil pressure to climb to 70, the gauge would go to 100 or something above the normal pressure.

Just think it's odd that it would peg the guage, even under slow acceleration.



RickRay I was hoping the same thing, about someone from GM chiming in about this.
Maclain is offline   Reply With Quote
Old 11-16-2009, 05:40 AM   #12
scrming
Red Brick of Vengeance!
 
scrming's Avatar
 
Drives: 12 Second Brick
Join Date: Jun 2009
Location: at my pulpit
Posts: 7,729
Watched my oil pressure this morning with my Dashhawk... so I'm getting the digital oil pressure the car's computer is seeing... It appears the analog oil pressure gauge is not completely accurate. It's reads high when the oil pressure is high and reads low when the pressure is lower...

For example... cold start up this morning. Oil pressure gauge, the needle was a bit past 70 yet the computer said the oil pressure was 67 to 68 PSI... Driving to work when I got on the gas the oil pressure would actually spike up to close to 80... i see 78 psi for sure... i think once i seen 79 psi. So well beyond the 70 psi max of the analog gauge..

Cruising on the high way the oil pressure was in the mid-50s... analog gauge seem to show what I would consider a bit higher.. perhaps in the 60s...

At work... at idle the pressure was low to mid 30s... now the analog gauge appears to read a bit low... needle seem to be more down around the low 20s...

Also I'm thinking the oil pressure is dependent on RPM, not how fast you are accelerating...
scrming is offline   Reply With Quote
Old 11-16-2009, 02:34 PM   #13
TIE FIGHTR
Cousin of Foo
 
TIE FIGHTR's Avatar
 
Drives: 2010 2LT RS BLACK/BEIGE
Join Date: Sep 2009
Location: Spring, TX
Posts: 653
I also have a 2LT RS and am breaking in hard. My oil pressure gauge has spiked like that, in conjunction with higher rpms when making a hard run from a rolling start, since I drove off the lot.

I'm not that worried about it. It just made sense to me that oil pressure would ramp up with a hard rev.
__________________

'I wish I was the full moon shining off a Camaro's hood' ~ Pearl Jam Wishlist
TIE FIGHTR is offline   Reply With Quote
Old 11-17-2009, 12:33 PM   #14
Susantroy1
To All Veterans
 
Susantroy1's Avatar
 
Drives: 2010 2LT RS Inferno Orange
Join Date: Sep 2009
Location: New Port Richey
Posts: 471
Mine has been the same sense I got it. I never gave it a second thought Higher revs = higher oil pressure who knew
__________________
This Vet remembers those before and after me...
http://en.wikipedia.org/wiki/Van_Thomas_Barfoot
Thank you Mr. Barfoot for your service, Keep up the fight!
June 15,1919-
Susantroy1 is offline   Reply With Quote
Old 11-17-2009, 12:44 PM   #15
scrming
Red Brick of Vengeance!
 
scrming's Avatar
 
Drives: 12 Second Brick
Join Date: Jun 2009
Location: at my pulpit
Posts: 7,729
Quote:
Originally Posted by Susantroy1 View Post
Mine has been the same sense I got it. I never gave it a second thought Higher revs = higher oil pressure who knew
I think part of the issue/confusion is normally when you have a gauge/meter it typically is not normal for the needle to go PAST IT... If the temp gauge were to go past the last marking would you think that normal?
scrming is offline   Reply With Quote
Old 11-17-2009, 01:17 PM   #16
Susantroy1
To All Veterans
 
Susantroy1's Avatar
 
Drives: 2010 2LT RS Inferno Orange
Join Date: Sep 2009
Location: New Port Richey
Posts: 471
Quote:
Originally Posted by scrming View Post
I think part of the issue/confusion is normally when you have a gauge/meter it typically is not normal for the needle to go PAST IT... If the temp gauge were to go past the last marking would you think that normal?
We are talking about oil pressure not water temps... As you stated in an earlier post these analog gauges are not calibrated. Reason for my lack of concern is that the gauge is fluctuating with differing RPM's. now If I'm at idle and the gauge is pegged than I'm concerned and would look at other indicators/performance in the car to evaluate if there is a problem but to have one gage operate according to RPMs I'm not concerned when all other systems/performance indicate no trouble. Perhaps... the V8s oil pressures are lower than ours and this gauge was created for them and we were an after thought
__________________
This Vet remembers those before and after me...
http://en.wikipedia.org/wiki/Van_Thomas_Barfoot
Thank you Mr. Barfoot for your service, Keep up the fight!
June 15,1919-
Susantroy1 is offline   Reply With Quote
Old 11-17-2009, 01:29 PM   #17
CamaroSpike23
Mr. Nitpicky
 
CamaroSpike23's Avatar
 
Drives: anything I can get my hands on
Join Date: Sep 2006
Location: anywhere and everywhere
Posts: 22,861
Send a message via Yahoo to CamaroSpike23
Quote:
Originally Posted by Dave the Mule View Post
My 2LT now has about 1000 miles on it. It shows 70 when the engine is cold but works its way back down to around 30 when it warms up. I think I read somewhere on one of these threads that a 70 psi reading some of the time is normal.

It's good you drained out the 10w30 and put the proper 5w30 back in. I doubt that the thicker oil did any damage.

10w30 and 5w30 are the same viscosity at operating temp, its only during startup that they differ in viscosity

30 psi at idle is normal. 70 psi during acceleration or under load is normal
__________________
Never race anything you can't afford to light on fire and push off a cliff
Quote:
Originally Posted by BowtieGuy View Post
Nobody makes CamaroSpike happy. You just disgust him a little less than other people.

Quote:
Originally Posted by Bulldogwinters View Post
Read that link that Spike posted, it'll tell you everything you need to know.
Quote:
Originally Posted by WheelmanSS View Post
Post count is truly an accurate measure of how cool someone is on the Internet.
Quote:
Originally Posted by Greg Norris View Post
I piss excellence
and fart awesomeness
Quote:
Originally Posted by BowtieGuy View Post
Nobody makes CamaroSpike happy. You just disgust him a little less than other people.
"You can think I'm wrong, but that's no reason to quit thinking.”
Quote:
Originally Posted by Overflow View Post
But not all people were born awesome like you, Spike.
CamaroSpike23 is offline   Reply With Quote
Old 11-17-2009, 01:32 PM   #18
Abygale


 
Abygale's Avatar
 
Drives: .
Join Date: Jul 2009
Location: .
Posts: 2,763
Quote:
Originally Posted by CamaroSpike23 View Post
30 psi at idle is normal. 70 psi during acceleration or under load is normal
Yep, this is exactly what my car does as well. It appears to be very typical.
Abygale is offline   Reply With Quote
Old 11-18-2009, 07:18 PM   #19
faninc
 
Drives: 2010 Camaro RS in SIM
Join Date: May 2009
Location: NJ
Posts: 507
Mine does to...thanks for this post. Concluding we are all ok! Put the pedal to the floor and do not worry about that guage anymore.

best
J
faninc is offline   Reply With Quote
Old 11-18-2009, 08:20 PM   #20
Maclain
 
Drives: 2LT
Join Date: Sep 2009
Location: South
Posts: 19
Took it in to the dealer monday, 6 hrs later they call me and say it's ready.

The service manager said they replaced the sending unit. Just to confirm, because he said nothing else, I asked "OK great, so the sending unit was bad?"

His response: Oh, yeah, it was a bad sending unit.

Drove it off, warmed it up, and it's doing the same thing. Under acceleration, the guage needle goes beyond the max 70 psi.

Thanks for all the responses.... CamaroSpike, I hope you're right.

Just makes sense that if it was normal to hit 70+ psi, the guage would go to 90 or 100.

Again, thanks for all the responses folks.

--Maclain
Maclain is offline   Reply With Quote
Old 11-18-2009, 08:33 PM   #21
faninc
 
Drives: 2010 Camaro RS in SIM
Join Date: May 2009
Location: NJ
Posts: 507
well now you know its normal...two guages would not both be broken the exact same way. Enjoy
faninc is offline   Reply With Quote
Old 11-18-2009, 10:00 PM   #22
Toastylicious
My car goes Vrooom.. You?
 
Toastylicious's Avatar
 
Drives: 2010 Rally Yellow Camaro LS
Join Date: Oct 2009
Location: Everett Washington
Posts: 136
Ya but the owners manual specifically says to not put 10w-30 in this vehicle because it might cause harm to the engine, if I read it correctly.
Toastylicious is offline   Reply With Quote
Old 01-02-2010, 02:53 PM   #23
Maclain
 
Drives: 2LT
Join Date: Sep 2009
Location: South
Posts: 19
I apologize for not responding with the end results.....

The dealership (Classic Chevy in Sugar Land, TX) called me and said there is a GM service bulletin regarding the issue, due to numerous customer inquiries.

The service bulletin states that the V6 engine is a high pressure engine, and the oil pressure guage maxing is normal.

My guess is that the V8 engine operates at a lower oil pressure, and the oil pressure guage was originally designed/calibrated for the V8, and GM just used the same guage for the V6's to save money.

Thanks for all the responses and help everyone.

Mac
Maclain is offline   Reply With Quote
Old 02-05-2010, 01:36 PM   #24
J_Dog
 
Drives: 2010 Silver 2LT/RS 20's
Join Date: Feb 2010
Location: Shelby Twp. Mi.
Posts: 7
Hi, I just picked up my 2LT last night, I put about 160 miles on it so far. Doing the same thing you guys are talking about. Bought mine at Buff Whelan Chevrolet in Sterling Hts. Mi. Taking it in Monday for them to have a look anyways. I am concerned. I have NEVER had a oil pressure gage in 20 years in a lot of different cars act this way. It is NOT acceptable in my opinion.
J_Dog is offline   Reply With Quote
Old 02-05-2010, 10:40 PM   #25
OUR72GTO
2010 SIM Beige RS 6M
 
OUR72GTO's Avatar
 
Drives: SIM RS 6M 72 GTO 07 NBS Silverado
Join Date: Oct 2008
Location: Kamloops,British Columbia
Posts: 4,612
There is a service notice on this........... Says to ignore it. I have for 6000 miles with no problems.
__________________
CAMARO.. 2010 The Heart Beat is back in CHEVROLET
Now let's put it back in America
OUR72GTO is offline   Reply With Quote
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
best synthetic oil to use hollywoodjose Mechanical Maintenance: Break-in / Oil & Fluids / Servicing 130 01-26-2014 08:51 AM
Oil Change Ramp mjlash22 Mechanical Maintenance: Break-in / Oil & Fluids / Servicing 17 01-21-2010 10:40 PM
V6 Oil Filter Housing - Fill w/ oil when changing oil? bono83 Camaro V6 LLT Engine, Exhaust, and Bolt-Ons 15 12-06-2009 08:46 PM
Need help..No Oil Pressure !!! BabyBee2010 Camaro Issues / Problems | Warranty Discussions | TSB and Recalls 12 10-22-2009 06:25 AM
Major U.S. oil source is tapped KILLER74Z28 Off-topic Discussions 32 10-30-2007 09:47 AM


All times are GMT -5. The time now is 03:00 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.