P06DD - Ghost Code

[Nick Cuzzupe]

Hi,

I am new to the forum and looking for a little help.

First a little info on my truck: I have had a 2014 Silverado; 4x4 6Cyl 4.3L engine. since new. Regular oil changes at the dealership, every 3000-4000 miles. Truck just hit 92000 Miles and has been out of power train warranty since June. 

 

Now on to the Issue at hand:

For the last 2 years my truck has been pulling a random check engine light code. Every time it is P06DD - Engine Oil Pressure Control Circuit Stuck off. The first time this code appeared was around 70,000 Miles and my truck would have still be under warranty. When i called the dealership they told me to check the engine oil level. Dipstick was bone dry. Added about 2 quarts, drove for a few days, and cod cleared itself. Thought everything was good. Monitored my driveway for leaking oil and found nothing. Now since that day, this code will come back intermittently. Basically around 2000 miles after every oil change it will pop up. I add about a quart or so to top off the dip stick, reset the code, and usually its OK. When i talk to the dealership they claim that this type of oil consumption is normal, and that i need to either have my oil changed more frequently. I travel about 600 miles a week for work, to have it changed more frequently would mean that i need to get an oil change about once a month, who had time for that. I have tried having the check engine light diagnosed multiple times and even brought it to an outside mechanic in case the dealership was hiding the issue, no one can find anything wrong.

 

So my question is this:

- Is this type of oil consumption truly normal for these trucks?

- Will topping off my oil every 1000 miles be bad for the truck and could it be a sign of something more serious going on?

- Seems odd that pulling a check engine light every 2000 miles would be "normal" for a truck just over 5 years old with under 100k Miles.

 

Not sure what my options are at this point. Originally, had i pressed the issue while under warranty, maybe they would have done something for me. Now i am about 5 months out of warranty and not sure if i should just deal with it, or possibly trade the truck in before something more serious goes wrong as a result of this issue...

[Lsgun1]

Sadly 1qt per 1000 miles is considered the normal standard now. Some trucks do it some don't. There could be excessive blow by on the piston rings or maybe a valve seal leaking but unless you are willing to tear into the engine to look you won't know till it starts smoking.

[Nick Cuzzupe]

thanks Lsgun1 for your reply... Do you think IF they had teared into it when i first brought it up that they would have covered rings and seals as a warranty item? I am just wondering how much i should push the issue since it has been going on since when i was well under warranty, and i have it documented at the dealership.

[silveradosid]

if you can afford to get rid of it , i would as lsgun1 said there is a problem somewhere

[Nick Cuzzupe]

my preference is to keep it since i only have 6months of payments left... but i could get into a new one for almost the same monthly payment and just start over.... The plan was to drive this one to the ground...

[Lsgun1]

It may not get any worse so it's really up to you if you want to start over money wise. You could also run it till it really screws up and just do a new/junkyard engine for a lot less then a new truck. The options aren't great. For the price to tear down and do rings you may as well just have another engine on hand. You can try running a slightly heavier oil also. I don't know what the V6 wants but if its 5w20 go to 5w30 and see if you get any change.

[Grumpy Bear]

105K on the clock of my 4.3 2WD RCSB. It uses no oil in it's 5K OCI. That word normal is a warranty dodge that you can not circumvent at a quart in 2K however, normal it is not. Move on or fix the problem. 

 

https://www.obd2-code.com/2017/04/dtc-p06dd-engine-oil-pressure-control-circuit-stuck-off.html

 

Start with some self education. Link above. 

 

This code should not be tripped by a single quart low. Ask yourself why? 

 

[g2full]

Some oil loss is expected....always been told due to lack of lead in the fuels. 
 

but that is definitely not normal 

[Grumpy Bear]

Have them do an oil pressure check using the filter block tool and not the scan tool and see if that second stage is actually kicking in. Do it full and a quart down. Something hinky here. A single quart should not trip this code if everything else is working right. 

 

70K sounds about right for the oil pressure screen to be replaced too. Remove and inspect. Install a new switch as you will be in there. Both parts are cheap and easy to get at in the 4.3. That screen will tell you a great deal about oil system cleanliness.