No change...

OP stayed the same. Which is 20 lbs hot no load new dino oil (syn would be 10lbs hot under load used oil). So my issue is not with the oilguard unit. Im going to have some service done next week so I will have them show me some other trucks and check the o.p. against those.

Again this is my truck and my engine NOT YOURS!.

Example are people who have had injector problems---> My response would be "I have not had injector problems so it cant be happening".

GET IT???

Im really tired of the "its not happening to my truck naysayers".

And

The "you sure have a lot of problems with your truck" naysayers.

Tell it to GM I didnt engineer or build the thing. I just drive it, pay for it and maintain it.

http://www.dieselplace.com/forum/smileys/Cry.gif


Genohttp://www.dieselplace.com/forum/smileys/Hug.gif

PC,


Let us know what you find. Sounds like something we need to approach.





Burner------------->http://www.dieselplace.com/forum/smileys/Big Smile.gif

PC I have 32 K and have had 20 PSI hot since day one. It goes up to 60 with RPM. Never herd a knock or ever felt like I was low on oil.


As the manual states. "m As long is it is not in the red, do not worry."


What else can you do?

PC,


Just curious... Did you also check the pressure with a seperate mechanical gauge?


http://www.dieselplace.com/forum/smileys/Geek.gif

Bill, you just again asked the question again (check with mechanical gauge of known accuracy) that has been asked in at least 3 threads PC has started on issues about his oil pressure, and he has yet to answer the question.


How 'bout it PC?

No i have not checked it with a mech. guage. If you read my thread that said it was OIL STARVATION KNOCKING and just above the RED you would know it is not needed because the guage seems to be right on.

I will let the dealer do it.

By the way deisel5 had a digital guage and he had 12lbs hot.

PC STOP YELLING AT US!!!!!!!!!!!!!!!!!!!!!! http://www.dieselplace.com/forum/smileys/Angry.gif


Maybe after you go to the dealer you can enlighten all of us with goofy oil pressure.


85 cold at idle and up.


Barely above the red at idle hot. 60-65 when 2000 RPM and up. http://www.dieselplace.com/forum/smileys/Confused.gif

Bronco...........shut up.


The man is asking us to simply READ his post and comment, if you have the same problem. READ what he is saying. He wants to get to the point and dismiss stupid questions. He knows that there are few problems addressed to this issue....only a few. He has low idel oil pressure and wants to know why. He has tools to check this.......and still many doubts from us. I'm sure he is upset, so back off and READ a little.


And no Bronco, I don't hate you nor care to fight about it.


Burner-----------> http://www.dieselplace.com/forum/smileys/Big Smile.gif

It is the filter, it lowers its resistance when hot.
THINK about it, verify it, humor me (-:

See, its the filter, right ?

PC, I'm not harassing you, and if you read ALL the posts that reply to ALL the threads you have started on this O P subject, you will find that in a previous reply I stated that if you didn't have a bad gauge,then you had a problem internally in that engine. And a test with a gauge of known accuracy is just anther diagnostic tool in the puzzle.


Hey, we're on your side!

Bronco...........shut up.


The man is asking us to simply READ his post and comment, if you have the same problem. READ what he is saying. He wants to get to the point and dismiss stupid questions. He knows that there are few problems addressed to this issue....only a few. He has low idel oil pressure and wants to know why. He has tools to check this.......and still many doubts from us. I'm sure he is upset, so back off and READ a little.


And no Bronco, I don't hate you nor care to fight about it.


Burner-----------> http://www.dieselplace.com/forum/smileys/Big Smile.gif





Reread my post and you will realize I have nearly identical symptoms. I have had it like this since day one. I never added any goofy oil filters or synthetic miracle oil. I have always used the black filter and 1540dino.


To be honest I don't know how low my oil is because the fatory gauge is goofy. The bars are not the same on the first section of the gauge as they are on the rest of the guage. I am on the first and second bar above the red at hot idle. It has always been like this.


Hopefully a real gauge will be used to vefiry the pressure, then diagnostics can begin. Most likely GM will tell him exactly what the manual states " If it is not red, do not worry." If it is in the red then there is cause for concern.


Bad gauge.


Bad sending unit.


Sloppy oil pump.


Clogged oil passage.


Damaged lifter.


Excessive bearing clearance.


Spun bearing.


Think you will get a total tear down or acurate diagnosis with todays tech system?


More likely they will replace the guage and sending unit untill they find one that reads high.

hooking up a mechanical gauge should be the first step. this is the easiest variable to eliminate. the dealer will do this. i recommend asking to see the gauge while it is hooked up. i agree that the general will do nothing in the way of repairs yet. it would be in PC's best interest to at least take it in and have it looked at so it will be documented. i do not believe that you have a starvation knock. our engines hold ten quarts of oil, for it to starve means you have ten quarts in the top end of your engine and not around the sump. this is virtually impossible at the rpm's these engines run. hope this is of some help, wil

hooking up a mechanical gauge should be the first step. this is the easiest variable to eliminate. the dealer will do this. i recommend asking to see the gauge while it is hooked up. i agree that the general will do nothing in the way of repairs yet. it would be in PC's best interest to at least take it in and have it looked at so it will be documented. i do not believe that you have a starvation knock. our engines hold ten quarts of oil, for it to starve means you have ten quarts in the top end of your engine and not around the sump. this is virtually impossible at the rpm's these engines run. hope this is of some help, wil





By "starvation knock" I think PC is referring to oil to the bearings and lifters not in the sump.


Maybe the Uni filter has lodged itself to the bottom of your oil pickup.http://www.dieselplace.com/forum/smileys/HiHi.gif


It sounds like a clearance issue since a "thicker" oil raises your pressure.My guess is rods and mains on the high side or your bleeding pressure from another place and since you've eliminated the oilgard??????


Blake

if it's hot and your sitting in gear......what's the RPM? Just an extra 50 to 100 can make a world of difference. Plug a Diablo or something in and let us know.





Burner--------------> http://www.dieselplace.com/forum/smileys/Big Smile.gif

Burner


I dont know what year your truck is but for some reason GM reduced the o/p on the 03 as mine is. We have a 01 company truck that the o/p runs 80 lb's at speed and 45 lb's at idle. my truck is 55 lb's at speed and 20 lbs at idle. The co truck has nothing but GM oil and filters scince new and mine runs syn 15/40. He needs to take his truck to dealer then we can go from there and do away with all this B.S.


Genohttp://www.dieselplace.com/forum/smileys/Hug.gif

By oil starvation I meant the O.P. dropped so low (about 9lbs and very hot oil) that the engine wasnt getting enough oil at a sufficient pressure to keep the engine from knocking.By the way the knock sounded like a bad rod knock until i set the high idle and it went away right now as o.o. increased to a more normal level.

P.C.


What were you doing to your truck to make the oil so hot,heavy load, fast driving, etc. There could be other problems causing this instead of the oil.


Genohttp://www.dieselplace.com/forum/smileys/Hug.gif

Somewhere there is a pressure relief/regulator for the pump. They used to be in the pump. I don't know where it is on the Duramax but surely one of the Techs here have had a pump off the engine. Later! Frank