Last post on Nov 08, 2013 at 11:51 AM
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GMC Yukon, Chevrolet Suburban, Chevrolet Tahoe, Oil, SUV
#200 of 242 2012 Oil Pressure Question
Jun 27, 2012 (12:28 pm)
Question for the group...bought a new 2012 Yukon XL and took it to the dealer for it's first oil change. Afterwards (noticed this about a month later - my wife drives this truck) that the oil pressure jumps from 20s to 60+ when I give the truck gas. Harder throttles result in larger jumps...needle moves very quickly then goes back to the 40 range. Is this normal or has anyone else had this issue? Every car/truck I've had in the past the oil pressure never moves, regardless of RPM.
#201 of 242 Re: 2012 Oil Pressure Question [pbhoo]
Jun 28, 2012 (5:47 am)
The oil pump is directly driven by the crankshaft, so the faster the engine is runnng, the more oil is being pumped. (higher pressure) Industry guidlines typically call for approximately 10PSI per 1000 rpm. So essentially at idle, anything over 10PSI is additional capacity for the lubrication system. Keep in mind, gages like the one on your dash can have some variance in what they appear to read but your description of the gages operation sounds perfectly normal. Do be sure to always use an oil that meets the dexos1 specification oil with your truck. Your invoice shoud reflect that this is the oil that was used.
#202 of 242 Re: 2007 GMC Yukon XL - Normail Oil Usage? [gmcustsvcsarah]
Jul 18, 2012 (2:17 pm)
So here I am again, 1800 miles since my oil change. Oil light is on again. We have done two of the update bulletins through GM through the service department. This has been going on for two years and 20,000 miles. I am beyond frustrated. You would think at some point in time GM would just authorize the engine to be done. I have the extended warranty through GM-that is what is the classic part! And I still can't get the engine replaced!!!
#203 of 242 09 sierra
Jul 24, 2012 (11:50 am)
Looks like I am not alone in having oil consumption issues with my truck! Wish I would have visited this forum before my purchase. 3rd time in for my truck. Guess they installed oil deflector and cleaned the carbon out. Hopefully this will work.
#204 of 242 Re: 09 sierra [bigmak]
Jul 24, 2012 (12:06 pm)
Bigmak, Don't expect that to work. I had the issues for about 9-12month and by the time I was done, they did the oil deflector and cleaning, replaced both complete head, replaced the Piston, Rods, Bearings, and rings. I would have been cheaper to replace the engine the first time. They had to remove the engine twice to do all this. The labor alone probably cost more than what the engine would have cost with only one labor charge. Good luck with your issue. Mine is pretty good but they finally fixed it at 90K on my engine. So a new engine rebuild at 90K. I hope at 120K I don't have issues.
#205 of 242 Re: 09 sierra [headgame01]
Jul 24, 2012 (12:16 pm)
Weird thing was the last time it happened the check engine lite nor the oil lite even came on. Thankfully I just happened to check the oil cause I was going on vacation. I couldnt even see any oil on the dipstick, and I only put about 200 miles on it since I had picked it up from service dept. Truck only has 45,000 on it,. Hopin for the best. good luck to you too!
#206 of 242 overfilled
Jul 24, 2012 (2:33 pm)
Just picked up truck from dealer after installation of oil deflector. Got home and just to be sure I checked the oil. Oil was overfilled, was about 1/4 in. above the cross-hatching on the dipstick.Is this bad for my truck and did dealer purposely do this to make consumption not look so bad?
Jul 28, 2012 (11:40 am)
Per the 2009 Sierra manual, p. 5-16, "Do not add too much oil. If the engine
has so much oil that the oil level gets above the cross-hatched area that shows the proper operating range, the engine could be damaged."
I'm sorry that this occurred - if you would like for us to look into anything, please contact us at socialmediagm.com (include your name and contact information ans the last 8 of your VIN).
Sarah, GM Customer Service
#208 of 242 Re: overfilled [bigmak]
Jul 29, 2012 (3:57 am)
There is "extra" room by design because people aren't perfect and minor errors do occur. Was the oil level exactly where it should be? Sounds like that is a no. But was it high enough to be a concern, actually, that is also a no.
In the high pressure to turn work at a pace that is way faster than anyone should have to be expected to perform atmosphere of a dealership service department some accuracy issues you are inevitable. The tech simply poured in the entire last bottle of oil instead of stopping with about 1/3rd of it left over. The "dealership" as an entity isn't out to try and sneak something by you as you suggested. This may well be the only thing the tech didn't do perfect while he/she got paid for about 70% of the time that actually gets invested to do the repair.
#209 of 242 2007 Yukon oil burning and missing
Aug 07, 2012 (5:34 pm)
Looks like I too am a victim of this engine. Yesterday while driving my truck started sputtering and all the "brake system" and "traction control" light came on. The vehicle is sputtering and it appears that the fuel management system is acting up. I have noticed lately that I have been consuming more oil. Im at 97k miles, so I better get it in soon. If they give me the run around at the dealership Im not sure what I can do.