Not sure if anyone is still following this thread but the shop just sent me a picture of my oil pump. She gone
Confirmed it has zero oil pressure - not just the sensor. Estimated around $2500 for repairs, hopefully get it back by the end of the week. Depressing.
Well... bad news. Put BG EPR in for 10 min or so, changed the oil again. Still the same whine and pressures were the same (but stable). Coming home from getting my kid at daycare, dash lights blow up and pressure dropped to zero.
Here are the dealer notes: "Scanned vehicle for codes, found P06DD, did diag., found oil pump relief valve stuck causing lower oil pressure, found bulletin pertaining to this issues, would also need to check rod and main bearings for any damage after oil pan is removed, reed to replace oil pump and check bearings."
Dealer came back saying it's low because of the oil pressure relief valve. They want to replace the oil pump for roughly $2500... Does anyone know how that valve works? Can I try some type of conditioner or additive in the oil to loosen whatever crud is holding it open? (thinking like a Lucus engine treatment or marval mystery oil...) Thinking a last ditch effort before paying for the work to be done. Pete
Anyone? Truck is going to the dealer tomorrow. We’ll see what they say.
The truck has had a BlackBear tune for the past 35k or so and with that turned off AFM.
The shop didn’t pinpoint the issue entirely but said they’re guessing a relief valve on the oil pump being stuck. That make sense? Recommended trying an additive and if that doesn’t help to bring in and they’ll tear it down, but it wouldn’t be cheap. :-|
Bringing it to an independent shop later this morning to get looked at. I know folks say the lower oil pressure is normal but I can say with 100% certainty, it didn't do this 2 weeks ago and has never dipped this low since I've owned the truck. The lower oil pressure and hum noise seem to have started about the same time.
Interesting. If it is the oil pump - any idea on cost to replace? I have a love/hate relationship with this truck. Overall I'm just bummed. I bought a newer truck with the intent to drive it 300k+ but this thing has cost my more money than all my previous vehicles combined.
Oops - 2014 Silverado, 130K 5.3l Agreed on pressure specs from everything I've read - that said, I'm almost sure it never dropped that low before.
pickupman87 posted a topic in 2014-2018 Silverado & Sierra Troubleshooting2014 Silverado - 5.3l - 130k A few days ago my truck developed a whine/hum/vibration sound when started up and at idle. We had real cold, below zero temps, and I figured it was probably related to that. After it's driven for a while the noise goes away. It still idles smooth and seems to drive completely normal. With it I noticed my oil pressure seems to be lower than normal. While driving I'm at 35-40, idle dropping down around 20 (it was never that low before at idle that I remember). Oil level was just fine but for safe measure I just changed it with no difference. Not sure what I'm in for and if I should continue to drive it / drive it to work tomorow? Here are some videos https://www.youtube.com/watch?v=P4Jh7vVqr0A https://www.youtube.com/watch?v=zCrrwwZajcI Pete
I've got a 2014 Silverado 1500 Crew Cab, 6.5ft box. The truck has a fiberglass topper, drawers full of stuff, and dog kennels etc in the back at all times. With that I'm also regularly towing a 3000lb boat or Polaris Ranger. It honestly hasn't bugged me too much other than cars flashing their brights thinking I have the HI beams on. Has anyone installed SumoSprings or some other helper springs on their truck to help raise the back up again? I had airbags in a previous truck which worked pretty well and coil over rear shocks in the one before that (which made it ride horrible). I'm debating doing something with springs... or changing the angle of my headlights. Pete
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