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12-02-2013, 09:40 AM #1
- Join Date
- Dec 2013
*HELP* My 2010 Silverado billows white smoke when 1st started.
Has anyone else had this problem or can you offer any idea as to what's wrong. I have a 2010 Silverado Z71 with 81k miles. This past Thursday, Thanksgiving, I started my truck and noticed a ton of white smoke coming from the exhaust. This only lasted about 3-4 seconds that it was clear. I got out and thought that the smoke smelled like oil. Anyway, this continued thru the weekend and after the holiday I was driving back home to Dallas and exited the highway for a snack. My "LOW OIL PRESSURE" light came. I had to add 4 quarts of oil to reach the full line. What's going on and what do I need to do? Thanks in advance for your help. Danny
12-02-2013, 09:48 AM #2
- Join Date
- Dec 2011
- Blog Entries
It seems you have an oil leak or oil blowing past the rings. If you still have a warranty on this truck I would very quickly get it to a dealer so they will cover part of the repair costs. The AFM trucks tend to have a issue burning oil and such that no one has fully figured out.
1996 Chevy Tahoe LT 5.7L V8 4X4 205,000+ miles. Built proudly at Janesville Assembly in Janesville, Wisconsin
Basic mods: Lights all over, bunch of electrical work, and a couple cooling mods.
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12-02-2013, 09:57 AM #3
Thread moved to GM PowerTrain Tech for more answers.
- - - Updated - - -
White smoke is steam, blue is oil.
1995 Silverado 4x4
6" BDS Suspension Lift-3" Body Lift-Add A Leaf in rear -Trailmaster SSV Shocks-Duel Steering Stabilizer Kit -AirAid Cold air intake-
4.56 Gears with Detroit Auburn Locker-Pro-Comp Traction Bars with duel shocks-Aluminum Skid Plate Kit-38.5" x 16.5" Mickey Thompson Baja Claws-Constant Dropping fuel gauge
2005 Yukon XL Jet Power Programmer, Bilstein Shocks, Bilstein rear springs, Helwig Anti-sway bars, EGR Window Visors, EGR Hood Shield, Denali Headlights, Headlight harness upgrade, GE NightHawk Bulbs, White Night Rear lighting system, Russell Braided SS brake lines, PowerStop Brake pads, PowerStop cross drilled and Slotted Rotors, http://www.gmtruckclub.com/forum/sho...5-GMC-Yukon-XL
2002 Silverado ext cab 2wd (Sold)
2003 Yukon XL (Totaled)
2010-Black-Silverado thanked for this post12-02-2013, 10:00 AM #4
Are you sure the smoke was WHITE, and not light BLUE? If the smoke was white, you are probably also losing coolant into the combustion chambers. However, coolant has a very acrid nasty smell that can mask the smell of burning oil. In either case, I'd suspect a head gasket since the smoke is coming from the exhaust.
You said the smoke is more evident at start-up and clears in a few minutes. This could indicate that you may have some worn valve guides that are allowing oil to seep into the combustion chambers when they cool off. Still, a hairline crack in a gasket or bad head bolt torque can do this too, and then seal up when hot.
The color white still makes me want to say head gasket coolant leak.
LOW OIL can cause overheating. Oil in the combustion chambers can blow head gaskets. THEN you start losing coolant too.
12-02-2013, 10:05 AM #5
I know that some guys with AFM have reported this. The fix involves installing updated valve covers with some baffles inside.
12-02-2013, 10:38 AM #6
12-02-2013, 12:50 PM #7
Time for the new motor fix! Bring it to the dealer. Do the oil consumption tests they require. Let them do the "fixes" check your oil 2k miles after the fix. It will probably be low(every one that I knew the "fix" never worked) bring it back. Let them do another consumption test. Badabing new motor!
On a serious note, bring the truck in asap. So you can begin the test soon so you don't miss your warranty cut off. Let them do all that is stated above. Every day check your oil level for the first week or 350 miles. If it is low DO NOT TOUCH IT. Continue running the truck but keep an eye on the level but never add oil to it. If there is none on the dip stick before the 2k or 3k mile test call your dealer and tell them you don't feel safe going off in your vehicle. My dealer is an awesome guy and I got a rental to use on a few business trips and he drove mine for me. In the end I ended up with a brand new engine under warranty but i was past 36k a few miles!!
But it is hard to get a dealer to believe you on your oil level. Most think that people drain oil if they constantly call. Our "other" dealer does that on every warranty job...idiots..
12-02-2013, 02:46 PM #8
- Join Date
- Apr 2010
- Piermont,NY, back in Northern NJ now, But may be in IL soon....
There are a few TSB's on this Just bring it back to the dealer and tell them you did not spend $40K Plus for a truck to do this so early...08 Z71 Avalanche Mods to date: K&N CAI,Hellwig Swaybars and End Links, Corsa Sport Exhaust, Superchips Programer,IPCW LOF & 3rd brake light and tails, AMI Gas door,Show Hooks and Door locks, Enkei Wheels, with Pirelli tires, StreetScene Bowties, Grant Steering wheel,Muth signal mirrors,SSBC Big Brake kit,Huskyliner Mug gards,Floor mats and Hood shield, McGard Lug nuts and locks, Bedrug, Cervini's Ram Air hood,35watt HID Fog lights, Sylvania bulbs all around ZXE's Highs and Lows, WhiteNight Back up lights,Sirius and HD Radio, SnugTop sitting on deck now Got a Softopper on now,Tempress Boat Hatches.... New Bilstein shocks are on... New Mods coming soon..... X
12-02-2013, 06:44 PM #9
White smoke is condensation.
As the exhaust cools, water vapour forms inside the pipes; the next time you start it on a cold morning, the water droplets will turn to water vapour and blow out the exhaust as white smoke. Nothing to worry about.
The oil consumption/leakage is a different story.
Read this: http://www.gmtruckclub.com/forum/sho...-for-2012-2013Ray
'09 Avalanche LTZ - Black
'05 Envoy XL (sold)
12-02-2013, 07:01 PM #10
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