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Key:
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Joined: Sep 2003
Posts: 8,622
Panty Wearin' Hunter
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Panty Wearin' Hunter
Joined: Sep 2003
Posts: 8,622 |
I ran into a friend that has worked as a mechanic for a GMC dealer for years and he said the exact thing you guys are reporting. He said the 2014, 2015, and 2016 5.3 engines are a totally different design and should be good engines but they still haven't been out long enough to be totally sure.
The problems started in 2007.
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Joined: Dec 2004
Posts: 5,436
12 point
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12 point
Joined: Dec 2004
Posts: 5,436 |
I have an 08 with a 6.0 and have no issues with oil consumption. It has 113K
I Pledge Allegiance to the flag of the United States of America. and to the republic for which it stands, one nation under God, indivisible, with liberty and justice for all.
Some men are born brothers, Others earn it... JD
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Joined: Nov 2015
Posts: 44
spike
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spike
Joined: Nov 2015
Posts: 44 |
No recall. Replace valve cover with the new style. They relocated pcv valve. That is the issue. [/quote]
Do you know how much this repair should cost?
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Joined: Dec 2001
Posts: 14,193 Likes: 1
Booner
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Booner
Joined: Dec 2001
Posts: 14,193 Likes: 1 |
I believe the valve cover issue was fixed midway through the 2011 model year.
I have a 2011 Silverado 5.3 with apparently the new valve cover design. Bought it in May of 2011. It's never used any oil or given me one bit of problem and it now has 72K on it.
"You think I care? Roll Damn Tide"
Have you tried Google?
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Joined: Nov 2015
Posts: 14,515
Booner
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Booner
Joined: Nov 2015
Posts: 14,515 |
I'm looking to get a newer vehicle for my wife here soon. We are really interested in full size GM SUVs such as the tahoe, yukon, etc. The 5.3 is the most common engine found in these but I know they have oil burning issues which really scares me. Did the oil burning issue start in 2007? How long before the 5.3 was fixed? I am not worried about adding a little oil here and there. My concern is the previous owner running it dry and buying a ticking time bomb. Anything else I should watch out for?
how is the 6.2L ? I know i will sacrifice MPG but is it a 200K engine? Consumer Reports just named the Suburban/Yukon as one of the LEAST RELIABLE vehicles for that brand. But, buy whatever you want.
Last edited by MarksOutdoors; 11/20/15 05:15 AM.
"The true soldier fights not because he hates what is in front of him, but because he loves what is behind him."
-G. K. Chesterton
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Joined: Apr 2007
Posts: 14,143
Booner
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Booner
Joined: Apr 2007
Posts: 14,143 |
The 6.2 is good. Hard to find in the half ton though
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Joined: Apr 2007
Posts: 14,143
Booner
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Booner
Joined: Apr 2007
Posts: 14,143 |
If you buy a 5.3 with afm, get that bullshit turned off.
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Joined: Dec 2007
Posts: 1,521
8 point
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8 point
Joined: Dec 2007
Posts: 1,521 |
I parted out a <10k mile 2009 5.3 engine a few years ago. You would not believe the amount of oil in the intake and carbon on the pistons. Internally, the engine looked brand new. When I took the intake off, oil poured out of the intake. It was consuming oil pretty bad.
I feel the engines overall are very good engines. I've had several over the years, and I've always had good service out of them. My GMC 2500 has nearly 200k miles and has plenty of power. It needs a rear main seal, but it runs great. I'm currently putting a 6.0 engine in a Jeep YJ. I"m using those heads off the 5.3 above, but I'll be changing out the valve cover when I put the engine together.
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Joined: Aug 2007
Posts: 9,037
14 point
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14 point
Joined: Aug 2007
Posts: 9,037 |
I put a drivers side valve cover with an actual PCV valve from my 01 suburban onto my 07 suburban. The oil consumption remains the same. It's been on there about 6 months. The 07 valve cover made no difference on the 01.
That tells me it's more than a PCV issue. I love the truck, so adding a quart occasionally doesn't bother me.
Take your kids hunting instead of hunting your kids.
I'd rather be LOST in the woods than FOUND in the city.
Drive a hybrid, I need your gas.
Your mind is your primary weapon. Never let it get rusty.
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Joined: Apr 2007
Posts: 14,143
Booner
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Booner
Joined: Apr 2007
Posts: 14,143 |
I put a drivers side valve cover with an actual PCV valve from my 01 suburban onto my 07 suburban. The oil consumption remains the same. It's been on there about 6 months. The 07 valve cover made no difference on the 01.
That tells me it's more than a PCV issue. I love the truck, so adding a quart occasionally doesn't bother me. why are you changing parts from 2001 and 2007 models? they are not the same? 2001 and 2006 should be close but not 2007
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Joined: Dec 2007
Posts: 1,521
8 point
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8 point
Joined: Dec 2007
Posts: 1,521 |
I put a drivers side valve cover with an actual PCV valve from my 01 suburban onto my 07 suburban. The oil consumption remains the same. It's been on there about 6 months. The 07 valve cover made no difference on the 01.
That tells me it's more than a PCV issue. I love the truck, so adding a quart occasionally doesn't bother me. why are you changing parts from 2001 and 2007 models? they are not the same? 2001 and 2006 should be close but not 2007 Gen III and Gen IV LS engines share alot of parts between the 4.8, 5.3, 5.7, and 6.0 engines. I'm putting 2009 5.3 heads on a 2004 6.0 engine. The 5.3 heads have a higher compression combustion chamber, but flow the same.
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Joined: Apr 2007
Posts: 14,143
Booner
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Booner
Joined: Apr 2007
Posts: 14,143 |
I put a drivers side valve cover with an actual PCV valve from my 01 suburban onto my 07 suburban. The oil consumption remains the same. It's been on there about 6 months. The 07 valve cover made no difference on the 01.
That tells me it's more than a PCV issue. I love the truck, so adding a quart occasionally doesn't bother me. why are you changing parts from 2001 and 2007 models? they are not the same? 2001 and 2006 should be close but not 2007 Gen III and Gen IV LS engines share alot of parts between the 4.8, 5.3, 5.7, and 6.0 engines. I'm putting 2009 5.3 heads on a 2004 6.0 engine. The 5.3 heads have a higher compression combustion chamber, but flow the same. that's fine but he is trying to correct an issue on an 01 with a solution for an 07.
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Joined: Aug 2007
Posts: 9,037
14 point
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14 point
Joined: Aug 2007
Posts: 9,037 |
I put a drivers side valve cover with an actual PCV valve from my 01 suburban onto my 07 suburban. The oil consumption remains the same. It's been on there about 6 months. The 07 valve cover made no difference on the 01.
That tells me it's more than a PCV issue. I love the truck, so adding a quart occasionally doesn't bother me. why are you changing parts from 2001 and 2007 models? they are not the same? 2001 and 2006 should be close but not 2007 Gen III and Gen IV LS engines share alot of parts between the 4.8, 5.3, 5.7, and 6.0 engines. I'm putting 2009 5.3 heads on a 2004 6.0 engine. The 5.3 heads have a higher compression combustion chamber, but flow the same. that's fine but he is trying to correct an issue on an 01 with a solution for an 07. I may not have been clear. I swapped drivers side valve covers on the 07 and 01. I'm trying to correct the oil consumption on my 07 with an old school PCV valve cover from an 01. The 01 does not use oil. Putting the 01 valve cover on the 07, did not help the oil consumption and putting the "defective" 07 valve cover on the 01 did not cause the 01 to start using oil.
Take your kids hunting instead of hunting your kids.
I'd rather be LOST in the woods than FOUND in the city.
Drive a hybrid, I need your gas.
Your mind is your primary weapon. Never let it get rusty.
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Joined: Apr 2007
Posts: 14,143
Booner
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Booner
Joined: Apr 2007
Posts: 14,143 |
I put a drivers side valve cover with an actual PCV valve from my 01 suburban onto my 07 suburban. The oil consumption remains the same. It's been on there about 6 months. The 07 valve cover made no difference on the 01.
That tells me it's more than a PCV issue. I love the truck, so adding a quart occasionally doesn't bother me. why are you changing parts from 2001 and 2007 models? they are not the same? 2001 and 2006 should be close but not 2007 Gen III and Gen IV LS engines share alot of parts between the 4.8, 5.3, 5.7, and 6.0 engines. I'm putting 2009 5.3 heads on a 2004 6.0 engine. The 5.3 heads have a higher compression combustion chamber, but flow the same. that's fine but he is trying to correct an issue on an 01 with a solution for an 07. I may not have been clear. I swapped drivers side valve covers on the 07 and 01. I'm trying to correct the oil consumption on my 07 with an old school PCV valve cover from an 01. The 01 does not use oil. Putting the 01 valve cover on the 07, did not help the oil consumption and putting the "defective" 07 valve cover on the 01 did not cause the 01 to start using oil. I see. Have you looked at the redesign of the replacement valve cover for the 07? Also, I did read where the valve was redesigned as well
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Joined: Sep 2007
Posts: 7,845 Likes: 1
14 point
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14 point
Joined: Sep 2007
Posts: 7,845 Likes: 1 |
Y'all quit talking about this. My 07 has never used a drop of oil until last week. Was a quart low and due for an oil change. Y'all keep this up and it starts using oil I am blaming it on these threads. Still got my fingers crossed.
Last edited by trlrdrdave; 11/20/15 08:49 AM.
"In time of war, send me all the Alabamians you can get, but in time of peace, for Lord's sake, send them to somebody else." General Edward H. Plummer
"Blessed are those who, in the face of death, think only about the front sight." Jeff Cooper
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Joined: Oct 2008
Posts: 7,086
14 point
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14 point
Joined: Oct 2008
Posts: 7,086 |
I do not have an old valve cover and new one handy to reference, but the issue was to do with the location of the pcv valve, not the valve itself. They may be the same, I'm not sure but the one that had problems was located right above an oil passage on the rocker that essentially was spraying oil right into the pcv valve.
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Joined: May 2013
Posts: 1,172
6 point
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6 point
Joined: May 2013
Posts: 1,172 |
My 09 Sierra 5.3 burns oil like its gas. Got 240,000 miles on it and still going strong
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Joined: Nov 2015
Posts: 44
spike
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spike
Joined: Nov 2015
Posts: 44 |
lol mine too.4 quarts between oil changes.160k
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Joined: Aug 2007
Posts: 9,037
14 point
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14 point
Joined: Aug 2007
Posts: 9,037 |
I put a drivers side valve cover with an actual PCV valve from my 01 suburban onto my 07 suburban. The oil consumption remains the same. It's been on there about 6 months. The 07 valve cover made no difference on the 01.
That tells me it's more than a PCV issue. I love the truck, so adding a quart occasionally doesn't bother me. why are you changing parts from 2001 and 2007 models? they are not the same? 2001 and 2006 should be close but not 2007 Gen III and Gen IV LS engines share alot of parts between the 4.8, 5.3, 5.7, and 6.0 engines. I'm putting 2009 5.3 heads on a 2004 6.0 engine. The 5.3 heads have a higher compression combustion chamber, but flow the same. that's fine but he is trying to correct an issue on an 01 with a solution for an 07. I may not have been clear. I swapped drivers side valve covers on the 07 and 01. I'm trying to correct the oil consumption on my 07 with an old school PCV valve cover from an 01. The 01 does not use oil. Putting the 01 valve cover on the 07, did not help the oil consumption and putting the "defective" 07 valve cover on the 01 did not cause the 01 to start using oil. I see. Have you looked at the redesign of the replacement valve cover for the 07? Also, I did read where the valve was redesigned as well No, but I just researched them and I'm going to buy one and see how it does.
Take your kids hunting instead of hunting your kids.
I'd rather be LOST in the woods than FOUND in the city.
Drive a hybrid, I need your gas.
Your mind is your primary weapon. Never let it get rusty.
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Joined: Sep 2007
Posts: 7,845 Likes: 1
14 point
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14 point
Joined: Sep 2007
Posts: 7,845 Likes: 1 |
They are less than a 100 dollars. Valve cover itself is easy to change. Getting to it is another story.
"In time of war, send me all the Alabamians you can get, but in time of peace, for Lord's sake, send them to somebody else." General Edward H. Plummer
"Blessed are those who, in the face of death, think only about the front sight." Jeff Cooper
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