06 w/ 5.3 burning oil? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

GMC3 · 12-25-2009, 01:26 PM

My 06 silverado w/ the 5.3 and 42000 miles is now burning a quart of oil every 1500 miles. I did some online research and i found that this is not uncommon and chevy has a service bulletin on it. Does anyone have any experience with this? Has anyone seen the service bulletin? or know what the problem is?

GMC3 · 12-25-2009, 02:17 PM

oh yeah. forgot to add that i change my oil and filter every 3000. used conventional up to the 36000 mark and never had to add between changes even though it did burn a little but was still in range on the dipstick. switched to mobil 1 syn. at 36000 and have had to add oil between oil changes

**truckdude239** · 12-25-2009, 02:49 PM

according to teh tsb it is caused by a nick in a vavle stem

Thealien · 12-25-2009, 02:50 PM

Even though I am a fan of synthetics I would try switching back to what you were using and see if it goes back to burning just a "little"

msgross · 12-25-2009, 03:20 PM

ouch, if mine started doing that i'd be looking to trade it in...

GMC3 · 12-30-2009, 07:31 PM

Had the mechanic at work print out the service bulletin for me and like truckdude239 said it is caused by a nick in one or more of the valve stems, is common in low mileage vehicles, and the recommended repair is to replace the cylinder heads. i bought my truck before the 5 yr. 100,000 powertrain so it looks like this one is on me. This is my first chevy, and have been pretty disappointed. I want my 91 f150 and 24,000 dollars back

**truckdude239** · 12-30-2009, 08:12 PM

i'd still call the dealer and ask them if there is something they can do for you

msgross · 12-30-2009, 09:20 PM

I agree, they have special conditions sometimes and cover things just slightly out of warranty..

67ChevyRedneck · 12-30-2009, 10:04 PM

You also haven't definitely found the problem yet.

You're 100% sure there's no leak?

Are you doing any heavy towing or a lot of 4wd use? That will cause oil consumption to increase.

Also check for a plugged PCV. I think your truck should have the fixed orifice one. It's at the back of the valve cover on the driver's side. When you pull it, it should have just a small hole drilled in it. If not, if it's the one with the check ball, you may want to replace it with the "fixed orifice" one. My 2000 did the same thing a few years ago, she was going through almost a quart every 1000 miles, I put the fixed orifice PCV in it and it uses maybe an 1/8 quart between 5,000 mile Mobil One changes. What I have mentioned is also a TSB too, but like I said, I think GM put the fixed orifice in the later 5.3's BUT without knowing, you or someone may have replaced it without knowing it doesn't need to be changed.

67ChevyRedneck · 01-02-2010, 09:55 PM

Did my suggestion help? Any updates?

GMC3 · 01-03-2010, 11:44 AM

i appreciate the suggestion. will be checking my pcv today. I really hope that helps. don't want to take apart the top end to do my cylinder heads. i'll get back to you. thank you

GMC3 · 01-03-2010, 02:18 PM

looked into my pcv valve and apparently its not meant to be replaced. its not in a rubber grommet like most, it appears pressed into my valve cover. and while i was at the local auto parts store i looked up the replacement part and it said N/R meaning "not required". i guess it is the fixed orifice type, and they are not supposed to go bad. Does anyone know if they do go bad anyway? and to get back to you, i really don't drive my truck hard. I hardly tow anything and use the 4wd occasionally. thank you and i really appreciate the help and responses.

67ChevyRedneck · 01-03-2010, 03:42 PM

My 2000 has a rubber grommet that the PCV goes into and it comes out pretty easy, so it must be the fixed orifice type. No, there's no way that they can "go bad" that I know of. It's just an empty PVC with a small hole drilled in it. My 99 S-10 doesn't have a replacable PCV either.

Primed67 · 01-05-2010, 08:19 PM

My 07 has the same issue. burns roughly a quart of oil every oil change. all i go is hwy driving. I'm going to look at the PCV valve and see if that's the issue. good post guys. Thanks!

bobbo · 01-05-2010, 09:03 PM

There is also a problem with the oil rings being bad. Just had an 08 Tahoe with the 5.3 in at work a couple weeks ago that had to have new pistons and rings installed to cure the oil consumption problem. Very low miles on it. May look into that.

Manbearpig · 01-09-2010, 10:45 AM

Put a catch can on the PCV like this:
http://wiki.ls1tech.com/forums/gener...can-setup.html

12-25-2009, 01:26 PM	#1
GMC3 Registered User Join Date: Aug 2002 Location: philadelphia Posts: 62	06 w/ 5.3 burning oil? My 06 silverado w/ the 5.3 and 42000 miles is now burning a quart of oil every 1500 miles. I did some online research and i found that this is not uncommon and chevy has a service bulletin on it. Does anyone have any experience with this? Has anyone seen the service bulletin? or know what the problem is?

12-25-2009, 02:17 PM	#2
GMC3 Registered User Join Date: Aug 2002 Location: philadelphia Posts: 62	Re: 06 w/ 5.3 burning oil? oh yeah. forgot to add that i change my oil and filter every 3000. used conventional up to the 36000 mark and never had to add between changes even though it did burn a little but was still in range on the dipstick. switched to mobil 1 syn. at 36000 and have had to add oil between oil changes

12-25-2009, 02:49 PM	#3
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,217	Re: 06 w/ 5.3 burning oil? according to teh tsb it is caused by a nick in a vavle stem __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube Last edited by truckdude239; 12-25-2009 at 02:52 PM.

12-25-2009, 02:50 PM	#4
Thealien Senior Member Join Date: Jun 2007 Location: Pine Ridge Florida Posts: 4,120	Re: 06 w/ 5.3 burning oil? Even though I am a fan of synthetics I would try switching back to what you were using and see if it goes back to burning just a "little" __________________ Click on my Not really a build thread, yet NOT SO RUST FREE RUST FREE BLAZER LS ENGINE SWAP INFORMATION THREAD BOLT RESTORATIONS 4l60 to an NP205

12-25-2009, 03:20 PM	#5
msgross Registered User Join Date: Jul 2006 Location: Central PA Posts: 12,201	Re: 06 w/ 5.3 burning oil? ouch, if mine started doing that i'd be looking to trade it in... __________________ The Garage: 1968 K-10 SWB - "Project Money Pit" 1996 Z-71 - "huntin rig" 1969 C-10 LWB (SOLD) "Project flip that truck or else" 1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie" My Garage Build "The 1,000 footer"

12-30-2009, 07:31 PM	#6
GMC3 Registered User Join Date: Aug 2002 Location: philadelphia Posts: 62	Re: 06 w/ 5.3 burning oil? Had the mechanic at work print out the service bulletin for me and like truckdude239 said it is caused by a nick in one or more of the valve stems, is common in low mileage vehicles, and the recommended repair is to replace the cylinder heads. i bought my truck before the 5 yr. 100,000 powertrain so it looks like this one is on me. This is my first chevy, and have been pretty disappointed. I want my 91 f150 and 24,000 dollars back

12-30-2009, 08:12 PM	#7
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,217	Re: 06 w/ 5.3 burning oil? i'd still call the dealer and ask them if there is something they can do for you __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

12-30-2009, 09:20 PM	#8
msgross Registered User Join Date: Jul 2006 Location: Central PA Posts: 12,201	Re: 06 w/ 5.3 burning oil? I agree, they have special conditions sometimes and cover things just slightly out of warranty.. __________________ The Garage: 1968 K-10 SWB - "Project Money Pit" 1996 Z-71 - "huntin rig" 1969 C-10 LWB (SOLD) "Project flip that truck or else" 1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie" My Garage Build "The 1,000 footer"

12-30-2009, 10:04 PM	#9
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: 06 w/ 5.3 burning oil? You also haven't definitely found the problem yet. You're 100% sure there's no leak? Are you doing any heavy towing or a lot of 4wd use? That will cause oil consumption to increase. Also check for a plugged PCV. I think your truck should have the fixed orifice one. It's at the back of the valve cover on the driver's side. When you pull it, it should have just a small hole drilled in it. If not, if it's the one with the check ball, you may want to replace it with the "fixed orifice" one. My 2000 did the same thing a few years ago, she was going through almost a quart every 1000 miles, I put the fixed orifice PCV in it and it uses maybe an 1/8 quart between 5,000 mile Mobil One changes. What I have mentioned is also a TSB too, but like I said, I think GM put the fixed orifice in the later 5.3's BUT without knowing, you or someone may have replaced it without knowing it doesn't need to be changed. __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! Last edited by 67ChevyRedneck; 12-30-2009 at 10:14 PM.

01-02-2010, 09:55 PM	#10
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: 06 w/ 5.3 burning oil? Did my suggestion help? Any updates? __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!

01-03-2010, 11:44 AM	#11
GMC3 Registered User Join Date: Aug 2002 Location: philadelphia Posts: 62	Re: 06 w/ 5.3 burning oil? i appreciate the suggestion. will be checking my pcv today. I really hope that helps. don't want to take apart the top end to do my cylinder heads. i'll get back to you. thank you

01-03-2010, 02:18 PM	#12
GMC3 Registered User Join Date: Aug 2002 Location: philadelphia Posts: 62	Re: 06 w/ 5.3 burning oil? looked into my pcv valve and apparently its not meant to be replaced. its not in a rubber grommet like most, it appears pressed into my valve cover. and while i was at the local auto parts store i looked up the replacement part and it said N/R meaning "not required". i guess it is the fixed orifice type, and they are not supposed to go bad. Does anyone know if they do go bad anyway? and to get back to you, i really don't drive my truck hard. I hardly tow anything and use the 4wd occasionally. thank you and i really appreciate the help and responses.

01-03-2010, 03:42 PM	#13
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: 06 w/ 5.3 burning oil? My 2000 has a rubber grommet that the PCV goes into and it comes out pretty easy, so it must be the fixed orifice type. No, there's no way that they can "go bad" that I know of. It's just an empty PVC with a small hole drilled in it. My 99 S-10 doesn't have a replacable PCV either. __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! Last edited by 67ChevyRedneck; 01-03-2010 at 03:42 PM.

01-05-2010, 08:19 PM	#14
Primed67 Registered User Join Date: Sep 2003 Location: Tyler Posts: 575	Re: 06 w/ 5.3 burning oil? My 07 has the same issue. burns roughly a quart of oil every oil change. all i go is hwy driving. I'm going to look at the PCV valve and see if that's the issue. good post guys. Thanks! __________________ 1969 Chevrolet SWB Stepside 1959 Chevrolet apache * Sold 1967 Prostreet Chevy SWB Fleetside *Sold 2014 1/2 ton Crew Cab Chevrolet 4x4

01-05-2010, 09:03 PM	#15
bobbo Droppin' It Like It's Hot! Join Date: Jun 2007 Location: Battlefield, Missouri Posts: 2,934	Re: 06 w/ 5.3 burning oil? There is also a problem with the oil rings being bad. Just had an 08 Tahoe with the 5.3 in at work a couple weeks ago that had to have new pistons and rings installed to cure the oil consumption problem. Very low miles on it. May look into that. __________________ Robert Life Member RIP CAROL JANICE HARTMAN. BELOVED MOTHER. 01/04/53 - 03/05/09 1969 1500 Norwood, MO 2007 Big Sandy, TN 2008 Had nothing to do with the forklift! Kirkwood, MO (Midwest Meet 2009) Midwest All Truck Nationals, KCMO - 2008 - 2009 - 2010 - 2012 - 2014 SUPPORT THE SITE HERE!



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01-09-2010, 10:45 AM	#16
Manbearpig Registered User Join Date: Mar 2009 Location: Midland, Tx Posts: 418	Re: 06 w/ 5.3 burning oil? Put a catch can on the PCV like this: http://wiki.ls1tech.com/forums/gener...can-setup.html __________________ 1972 GMC C10

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