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2014 4.3 Silverado P06DA

dilerious

By dilerious
in Troubleshooting & Recalls

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dilerious New Member

dilerious

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2014 Silverado V6 4.3L 1500 double-cab Z71 4x4 LT Model - 75,500 miles

 

Check engine light came on about 2 days ago on my way to work. Stopped at the auto parts that afternoon when I went to lunch and I had the P06DA - Engine Oil Pressure Circuit / Open code.

 

Called the dealer where I got the truck. They want me to bring it in for diagnostics, which is fine. But I always try Google first as I have 0 trust for sales, service and mechanics. I've read a few things about this on Google, but seeing it on Chrysler 200 3.6L's and Silverado 5.3L's. Mine is the 4.3L. Wondered what it could be, doesn't seem to be a lot of solid answers.

 

Service dept. said it could be the sensor at around $120 to fix, no biggie.... or the oil pump at $2k, a bit more of a biggie. She also made sure to state the obvious, that it's not covered under warranty, because nothing is ever covered under warranty.

 

If it's the oil pump, is this repairable myself? If I need to remove the motor, or it's a 10+ hour job, then it's a no-go for me and I'll be crying my way into the dealers service department. I read about solenoids, but seems to be on the 5.3 - service lady said she sees nothing on a solenoid, only a sensor or a whole new pump.

 

Again, I will be taking in to place on diagnostics, unless I'm missing all the right Google results...

 

I will try to update as I notice/find out more things, I will also try to provide as much detail as possible in case this appears for anyone else.

 

 

***Update 1*** 

I should note, everything seems completely normal. Including engine oil pressure, fluctuates from 40's to high 50's (upwards of 60) depending on rate of acceleration, which it's always done as far as I can remember (original owner) - oil pressure is actually about 45-50 when sitting idle, highway acceleration is around 60-70 - city acceleration is around 55-65. doesn't go above 70, doesn't quite reach 70 either, more like high 60's

 

 

***Update 2***

Went ahead and got an oil and filter change as it was close to due. Nothing noted from the garage, pressure was fine and no metal shavings or anything in the oil. Also, I've been monitoring engine temp and other things I can think of. No changes in engine temp or anything else suspicious. One thing to note, remote start no longer functions due to the check engine light. This is a safety feature due to a check engine line appearance and completely unrelated to the P06DA code issue.

 

***Update 3***

Might be being paranoid, but I'm kind of putting myself in that overly worried state. I think there's a bit of a whine, kind of like a power steering whine. But again, I'm trying to be overly cautious, so it might be completely normal, I can't recall now as I'm trying to look for anything abnormal and might be over thinking it.

 

***Update 4***

Diagnostics test scheduled for this coming Tuesday (4 days from now) test will likely take all day, I will update with the results afterward. Decided to monitor mileage and the trucks ability to shift in and out of V4. Truck no longer shifts into V4, stays in V6 always. Might also be a safety feature due to the check engine light appearance? I'll find out more at the dealership on Tuesday. Unrelated, following behind a semi on the highway on my way to work and a rock (or something demonic) shot up pretty hard and chipped my windshield. Called insurance (USAA) and they sent out Safelite. As soon as they put the machine on my windshield it cracked pretty bad.

 

 

Edited by dilerious
dilerious New Member

dilerious

Posted
  • Author
Posted (edited)

I should note, everything seems completely normal. Including engine oil pressure, fluctuates from 40's to high 50's (upwards of 60) depending on rate of acceleration, which it's always done as far as I can remember (original owner)

 

**I added this to the updates in the original post, I wrote the pressure numbers down incorrectly as I was trying to go from a visual memory while sitting at my computer and trying to remember what the pressure gauge looked like in my head.**

Edited by dilerious
dilerious New Member

dilerious

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Posted

Took the truck to the dealer, they called about an hour later and said they needed to replace the engine oil control solenoid. The great news here is it’s not the oil pump and IT IS COVERED UNDER WARRANTY. I’m ecstatic because the solenoid is located inside the pump and is rated as a 14+ hour job even in the dealers service department.

 

best news I’ve had all year.

 

I’ll update again once I pick up the truck.

dilerious New Member

dilerious

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Picked up my truck today. Read through the work order, they ended up replacing the entire oil pump.

 

also read that there’s an issue with the main wiring harness that seems related to the oil pump issue. They replaced that entire wiring harness as well.

 

they listed having to drain the AC system to replace the pump and had to refill that as well.

 

couple of things to note.

 

oil pressure should idle around 40-45 and not really go above 60 when accelerating even when on the highway.

 

I’ll try to update in about a month.

  • 3 years later...
Jayselectricco Enthusiast

Jayselectricco

Posted
Posted

So your oil pressure never goes below 40 on your 4.3? I had the code P06DD which is very similar to the one you had.  My problem was the thermostat was stuck open and temperature was never going above 180. Once I replaced it the temp went up to 210.  Before I replaced the thermostat my oil pressure stayed about 40-45 at idle and went to 60 and a little over when accelerating.  Now it idles about 60 on cold start up, comes back down to 40-45 a few minutes after start up, but once it gets hot the oil pressure drops on back to 20-30 at idle.  My pressure goes past 60 near 70 when I accelerate.  I was told that was the correct range for this truck that if it was never going under 40 psi when it was hot that there was something wrong. This fixed my issue for a little while, now I find the code coming back every now and then as a pending code. Before I replaced that thermostat every time my truck went into v4 it would immediately switch back to v6 mode and throw the pending code.  Now I have drove over 500 miles with it going into V4 mode like it should, but sometimes (seems like its when I'm accelerating and the oil pressure is over 60) it will stop going into V4 and I will see a pending code P06DD and I clear it out, and then I won't see it for a while. If yours is never going past 60, makes me wonder if that's what is causing my pending code when mine goes past 60 psi. I know its been 4 years since you posted this but hopefully your still around on here :)

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