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Is Your Gmt-900 Truck Or Suv Using Oil

RyanbabZ71
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Is your GMT-900 using oil  

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hillbilly4u Enthusiast

hillbilly4u

Posted
Posted

Update:

Just got back from the dealer. 1 1/2 qts. low at 969k. Told to come back in another thousand. They see its using oil, why drag it on.

  • 3 weeks later...
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GuyGene
GuyGene

I've been watching this oil usage issue a long time now. Sick of it. My '96 5.7 used NO oil! And I could get 20 mpg highway. Extended cab, loooong bed too. Dagnabbit, GM is running customers away.

Jsdirt
Jsdirt

Yep - they've forced alot of manufacturers to cut corners just to survive.   The EPA has done more harm to this nation the past 20 years than good. Another gigantic, bloated, goverment bureaucracy t

Cowpie
Cowpie

It is a sad testament to GM quality. My factory remanned 12.7L Detroit, 704,000 miles into its second life, only uses about 1 qt per 10,000 miles. Just did oil change on it at 21,580 miles on the oi

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manders500 Enthusiast

manders500

Posted
Posted

I have a 2007 Sierra with AFM that gave me a low oil warning at 78% oil life and at 64%. I took it to the dealer to begin the oil consumption test and because of your post I checked the oil once I got back to work and sure enough a half inch above the highest mark. I called the dealer and informed them and now I have to take it back so they can drain the oil. This could have been a problem since this is during the test and after a 1000 miles it would have consumed the normal quart but they would not see it that way since it would have been a half inch up the marks. Also in the owner’s manual it indicates that it could cause severe damage to the engine it the oil level is above the highest mark. I am not sure how serious that high of oil level really could be but I would think a dealership should follow GM's own warnings.

 

 

I am sorry to hear about your experience with your dealer. I would be happy to look into this for you. Please contact me privately with more information. Thank you in advance.

 

Tricia, GM Customer Service.

 

 

Thanks for the offer but they worked with me. I don't know what the service manual calls for but they said they put 6 quarts in and I am not sure if that is for a dry engine or if they filled the oil filter then added 6 quarts.

 

Anyway they verified I was consuming oil and replaced the valve cover, fogged the intake and put some sort of deflector in the oil pan. They again over filled my oil according to the dip stick but after 1300 miles on this oil change I have not consumed any oil!

downtime Enthusiast

downtime

Posted
Posted

Dropped my 07 Yukon off this morning to have new rings and pistons put in it. I was using about a quart every 1000 miles. We'll see how it goes. I'm hoping this fixes the problem and I can hang on to it until the new sierra's come out

 

Dropped my 07 Yukon off this morning to have new rings and pistons put in it. I was using about a quart every 1000 miles. We'll see how it goes. I'm hoping this fixes the problem and I can hang on to it until the new sierra's come out

glred Enthusiast

glred

Posted
Posted

09 5.3L aluminum block 6 speed 38000 miles 1/2-1qt low @ 2000 miles on Mobile 1 since 1000 miles....started oil consumption test

  • 3 weeks later...
  • 2 weeks later...
hillbilly4u Enthusiast

hillbilly4u

Posted
Posted

Update: Took truck in for pistons and ring job. Hope this cures it. Worried about the plugs, O2's and cats tho. That much oil burning has to foul something up.

6Sixathome Enthusiast

6Sixathome

Posted
Posted

Update: Took truck in for pistons and ring job. Hope this cures it. Worried about the plugs, O2's and cats tho. That much oil burning has to foul something up.

 

Did they finally agree to put the job under warranty?, when you get it back are you going to get a tune and turn off the AFM?
hillbilly4u Enthusiast

hillbilly4u

Posted
Posted

Update: Took truck in for pistons and ring job. Hope this cures it. Worried about the plugs, O2's and cats tho. That much oil burning has to foul something up.

 

Did they finally agree to put the job under warranty?, when you get it back are you going to get a tune and turn off the AFM?

 

 

 

Yeah, they did it under warranty. Having an early consumption test may have helped. Hope I don't regret major surgery. Gonna go pick it up in the morning. As for a tune, would rather find the cheapest handheld to turn it off.

6Sixathome Enthusiast

6Sixathome

Posted
Posted

I was nervous at first too but after having the lifters done before hand and done well calmed my nerves. You'll be happy when it doesn't burn any more oil. Let us know how it looks and turned out.

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mc7719 Enthusiast

mc7719

Posted
Posted

Yup the piston/ring job fixed my oil issue. And 8 new spark plugs were included :)

  • Like 1
hillbilly4u Enthusiast

hillbilly4u

Posted
Posted

Yup the piston/ring job fixed my oil issue. And 8 new spark plugs were included :)

 

 

They charged me 80 bucks for plugs. Said mine were in good shape and GM wouldn't pay for them. Can't figure out how the rings were stuck from carbon but the plugs were fine.

mc7719 Enthusiast

mc7719

Posted
Posted

Wow that's crap.. On my invoice 8 plugs were itemized along with the other parts, gaskets, etc etc.

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