Jump to content

2008 Sierra Crew Cab 5.3l Burns Oil


Recommended Posts

Posted

I'm going through a similar situation with my 07 5.3 AFM Silverado. I've posted the oil consumption monitoring in the sticky at the top of the forum. I've found that the more highway driving I do, the more oil is used. Hence the AFM is activated. If I stick to very little highway driving, then oil consumption is minimal.

 

I do agree that some oil usage is normal and is allowed to a certain extent, but going through 2 or more qts of oil between service intervals indicates a problem somewhere.

 

My 03 5.3 non AFM Silverado used less than 1/2 a qt of oil, even when service intervals were approaching 9,000 miles. I have not changed my driving habits or type of oil that I use when servicing the truck.

 

If GM will not do anything, I will get a tune to totally disable the AFM, reduce or even eliminate my oil consumption.

Posted
I'm going through a similar situation with my 07 5.3 AFM Silverado. I've posted the oil consumption monitoring in the sticky at the top of the forum. I've found that the more highway driving I do, the more oil is used. Hence the AFM is activated. If I stick to very little highway driving, then oil consumption is minimal.

 

I do agree that some oil usage is normal and is allowed to a certain extent, but going through 2 or more qts of oil between service intervals indicates a problem somewhere.

 

My 03 5.3 non AFM Silverado used less than 1/2 a qt of oil, even when service intervals were approaching 9,000 miles. I have not changed my driving habits or type of oil that I use when servicing the truck.

 

If GM will not do anything, I will get a tune to totally disable the AFM, reduce or even eliminate my oil consumption.

 

 

What do you expect GM will do? they already have the fix: lifters and shield, and if it doesn't work cylinders and rings....

Posted
Meaning, if the oil consumption falls within their "allowed" specifications, then I will have a tune disable the AFM.

 

The way I see it, they will not provide permanent fix If AFM is the root cause, only remedies until warranty expires, but there could be other causes like valve cover.

  • 1 month later...
Posted

My 08 Sierra is sitting in the shop for this very problem. I was just dumbfounded when the service rep made the comment about buring a quart every 1000 miles or so as normal! So that prompted a forum search which didn't take long to find this thread. No low oil indicator, just low oil pressure- Stop engine. just at 6,000 miles between oil changes. Have been using Castrol 5w-30 since purchase. Open to suggestions or opinions on my oil choice, btw.

 

 

Seems to me as far as engineer has come in the past decade, it has taken a giant step back on this one. My 2000 Chevy Silverado never had a leak or burned oil. Traded it in at 160K miles for this Sierra.

  • 2 years later...
Posted

/profile/126795-drbigjohn316/?do=hovercard" data-mentionid="126795" rel="">@DrBigJohn316

 

08 Sierra 89980 miles

no oil pressure stop engine message came on so I pulled over to check and it was 1 1/2 quarts low. Added oil and drove 109 miles and no oil pressure stop engine message came on again as I came to a stop the motor was idling so rough I thought it was going to drop out the bottom. Oil level was still full. Truck run fine as long as your driving, but when you stop it runs really rough. I brought it to dealer and they wanted $4,000.00 to replace lifters and cam shaft.(because it took me 6 years to get to 90,000 miles)

Posted

not saying its right but 1QT every thousand miles? BFD... having to check your oil more often than other vehicles? again BFD......Having to do lifters under 100k hell under 200k if taken care of? yeah there's an issue.... They seem to confuse normal maintinence that many of us would accept with their design issue. Guess what im trying to get at is that if my truck "used" oil at that rate (my 2010 hasn't burned a drop in 3k BTW) and never needed lifters/cam work I can deal with that..... the fact that there are mechanical issues showing up on all these trucks from the babied to abused, is wrong. It's like they are trying to make it a check oil issue when there's something way more to it...

Posted

if burning a quart of oil ever couple thousand miles is somehow considered normal with GM now , why is it not outlined in the owners manual? I'm surprised these engines can actually pass a smog inspection.

 

With millions upon millions in R&D money at GM over the course of this companies history, how on earth they managed to design an engine that burns as much oil as one probably dating back 75 years ago is beyond comprehension.

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts
  • Member Statistics

    342,782
    Total Members
    8,960
    Most Online
    ShowMeShooter1332
    Newest Member
    ShowMeShooter1332
    Joined
  • Who's Online   1 Member, 0 Anonymous, 5,695 Guests (See full list)

  • Latest Articles

  • Posts

    • I was around and remember that era very well, so I'm calling b/s on that statement. If they were that bad no police department or taxi company would've bought a single one ... but they were used in both services (and fire) for DECADES. They were bulletproof and proven. Even the early 21st century ones weren't too bad! The early models were legendary.   Mine is proof, but people like atlas are blinded by agenda and refuse to believe facts right before their very eyes.   Even decades after they were built, a new generation started driving them, posting all their builds and shenanigans on Grandmarq.net and Crownvic.net. The failures would show up then, since they all were deep past 100k-150k miles by that point, and younger drivers tend to be a little aggressive, especially with vehicles than can lay a one-tire fire for as long as you hold your foot in it. They've more than proven themselves over the decades.   The only thing that'll really take them out is road salt. The bodies and sheet metal were garbage. A victim of the cheapout FoMoCo and GM have been partaking in before then, and since.   Today it's the stuff that counts - the undercarriage that rots away first!    GMs Caprice was no slouch either. Reliable as a stone ax - the opposite of what they build now.    
    • Let me know how your vehicles do in 10 years. You don't know ******, kid. 😂    There's a reason that Panther platform was used as police, fire, and taxi service for DECADES ... long before you were born, apparently.
    • If your connector also has a big lever to get the connector on and off, you don't want to force the lever either way, as it becomes a bigger problem if you bust the lever or the mechanism it works.
    • It's just useful to disconnect the battery to prevent odd shorting out when unplugging/plugging stuff together.  I also  touch the two cable ends together (after disonnecting) to drain the small amount of stored battery energy in various modules.   I believe the main system where you need to be more concerned with, so you need to do the above and then wait some time, iss when you are working on the air bag system, to prevent inadvertent firing of the air bags.   The in-cab switches are just that, plain switches, it's generally not a problem to swap them in/out.  For my '12, I'll get an error message on the dash if I power up the truck w them unplugged, but that's it (power up= turn the ignition on).   The ITBC located above the spare tire is a computer that manages the trailer brake system.  That is probably more important to have the battery disconnected.  It does have to be programmed to the truck, either before or after it's installed, for it to work.  For my '12, I had a very hard time reinstalling the main connector to it (IDK if yours is the same or not), it turned out the silicon seal was jamming up, preventing it from going on all the way.  I finally got it fully installed by lubing the seal with a bit of dielectric grease, then it slid on and latched in place easily.
    • JR ! I just got the truck back from the Dealership today . The technician did a cold remote start on the truck this morning and it made the noise . It was determined that it was a starter issue and replaced it under warranty . Of course   it did not make the sound after a new starter was put in because the truck was not cold . We will we see what happens tomorrow morning when I start the truck cold  . Keep tuned !   Oh I found a video on YouTube of a cold start and it did the same thing your truck and mine do , I will see if I can find it and post it up
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...