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How To Make Lemonade? 2011 Sierra Problems

Hunter_745

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BlackZ71Silverado Senior Enthusiast

BlackZ71Silverado

Posted
Posted
Four bald tires, broken shock mount and poor fuel economy. Dude, I know you don't want your thread to turn into a pissing match but seriously, look at what kind of problems you are having here. These all point to one thing, unfortunantly.

 

 

+1

 

 

 

 

Yup, I'm on board also......read through these, the "axel let go" and "suspension blew apart" ones are interesting :

 

http://www.gm-trucks.com/forums/index.php?...c=127778&hl=

 

 

http://www.gm-trucks.com/forums/index.php?...c=137260&hl=

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redjewel2ss Enthusiast

redjewel2ss

Posted
Posted

your original tires went bald fast because of the original bad alignment, thats why they replaced them under warranty. just because they fixed the alignment half way through their life, doesn't mean they will automatically start wearing normal again. once one side of the tires wore down, there's no stopping it until you have to replace it. did they double check the alignment when replacing the tires?

 

i think what your getting at with the 200km variance in fuel range, isn't that your getting 200km per tank, but your getting 325km up to 500km per tank, right? just like in your OP on your older thead:

I averaged 450-500km per tank of fuel, no matter how I drove, or whether I was hauling. Over the last 3500 km, I can range anywhere from 325-400 on a tank.

 

it sounds to me like a heavy foot if you were originally getting only 500km per tank = 310 miles = about 14 mpg in US units. i average about 16 mpg city and 21 mpg highway. if you insist its not a heavy foot, then its a bad ECM, TPS, or bad spark plugs, and dealer should replace it under warranty, especially if the engine is misfiring. have they checked the plugs?

 

in the US the lemon laws are valid if the vehicle has been in the repair shop for more than 30 days within 24 months or 24,000 miles, and at least 2 repair attempts were made (on the same issue) within the first 12 months.

 

here's some good tips about the lemon law: http://www.lemonlawamerica.com/Lemon-Law-Tips.htm

BlackZ71Silverado Senior Enthusiast

BlackZ71Silverado

Posted
Posted

When your engine warning light comes on, what code is it showing? If you had a misfire, it would log the code and tell you which cylinder is causing the issue.

 

You also say highway driving, the engine looses power. Do you mean shuts off?

FYI : The AFM trucks drop to 4 cylinder mode on the highway at a certain time. (not sure if you know that or not)

 

Why do you think the engine is missing at idle, what exactly is going on? The 5.3 does not have the smoothers idle, it actually can be pretty ruff.

GPSilverado Enthusiast

GPSilverado

Posted
Posted

OK, just for a second, let's assume the OP is being truthful (No reason to come here and make this stuff up if his truck has really broke all these times). Let's also assume that the guy doesn't dog his truck out.

 

Now, a normally driven, 2011 truck shouldn't be having all these issues. If the steering column sensor is truly bad, causing issues with the Stability Control system, doesn't that mean that his truck could have been applying the brakes on different wheels, at different times, trying to correct what it thinks is a skid? That could account for the worn tires, the broken shock mount (although probably not), the poor fuel mileage at times, the apparent shake in the driveline or front end (not sure which he said in his earlier posts now), and now possibly the lack of power steering.

 

I for one prefer to give someone the benefit of the doubt when they come on the board asking for help. Having been a tech myself, I appreciate the quick jump to assume abuse, because we all have seen some really good ones, but sometimes our guess is wrong.

 

 

I will admit though, that if the Stability Control is activating causing these things, there probably should have been an indicator on the dash going crazy.

 

 

 

To the OP, I hope your truck is fixed when you get it back. There are few things more irritating than paying for something that has issues.

dmac Enthusiast

dmac

Posted
Posted

Good day....I have a 2009 GMC Sierra Nevada Edition Quad Cab....This edition of truck is widley sold in Canada....It has a 4.8L with a 4 speed automatic trans......my truck new I would be lucky to get 380 kms per tank.....now at 40, 000km I can get over 520kms per tank. The truck has only had a slight oil leak between the engine and the oil filter adaptor port....In the Niagara Region, there is an alignment shop called Ace alignment....these guys are so good that they can catch factory defects....I would suggest to take your truck to the best alignment shop in your region and have a full alignment check.....tire pressure (on the factory tires) should be 50lbs psi....I find that these trucks do lag in first gear with a `soft foot`. Ethanol enhaced gas can burn quicker.....

spankrz Enthusiast

spankrz

Posted
Posted
Good day....I have a 2009 GMC Sierra Nevada Edition Quad Cab....This edition of truck is widley sold in Canada....It has a 4.8L with a 4 speed automatic trans......my truck new I would be lucky to get 380 kms per tank.....now at 40, 000km I can get over 520kms per tank. The truck has only had a slight oil leak between the engine and the oil filter adaptor port....In the Niagara Region, there is an alignment shop called Ace alignment....these guys are so good that they can catch factory defects....I would suggest to take your truck to the best alignment shop in your region and have a full alignment check.....tire pressure (on the factory tires) should be 50lbs psi....I find that these trucks do lag in first gear with a `soft foot`. Ethanol enhaced gas can burn quicker.....

 

50 lbs on stock tires? :)

old-chevy-dude Senior Enthusiast

old-chevy-dude

Posted
Posted
Good day....I have a 2009 GMC Sierra Nevada Edition Quad Cab....This edition of truck is widley sold in Canada....It has a 4.8L with a 4 speed automatic trans......my truck new I would be lucky to get 380 kms per tank.....now at 40, 000km I can get over 520kms per tank. The truck has only had a slight oil leak between the engine and the oil filter adaptor port....In the Niagara Region, there is an alignment shop called Ace alignment....these guys are so good that they can catch factory defects....I would suggest to take your truck to the best alignment shop in your region and have a full alignment check.....tire pressure (on the factory tires) should be 50lbs psi....I find that these trucks do lag in first gear with a `soft foot`. Ethanol enhaced gas can burn quicker.....

 

 

50 PSI? where the hell did you pull that number from.. the proper COLD pressure for FACTORY tires is whatever is stamped on the plaque located in the drivers side door jam.

 

 

mine says 32 psi cold for the 275/55R20s. and the 2008 GMC Sierra 1500 SLE parked next to my vehicle with the 265/70R17s says 35 psi..

Doug_Scott Senior Enthusiast

Doug_Scott

Posted
Posted
your original tires went bald fast because of the original bad alignment, thats why they replaced them under warranty. just because they fixed the alignment half way through their life, doesn't mean they will automatically start wearing normal again. once one side of the tires wore down, there's no stopping it until you have to replace it. did they double check the alignment when replacing the tires?

 

i think what your getting at with the 200km variance in fuel range, isn't that your getting 200km per tank, but your getting 325km up to 500km per tank, right? just like in your OP on your older thead:

I averaged 450-500km per tank of fuel, no matter how I drove, or whether I was hauling. Over the last 3500 km, I can range anywhere from 325-400 on a tank.

 

it sounds to me like a heavy foot if you were originally getting only 500km per tank = 310 miles = about 14 mpg in US units. i average about 16 mpg city and 21 mpg highway. if you insist its not a heavy foot, then its a bad ECM, TPS, or bad spark plugs, and dealer should replace it under warranty, especially if the engine is misfiring. have they checked the plugs?

 

in the US the lemon laws are valid if the vehicle has been in the repair shop for more than 30 days within 24 months or 24,000 miles, and at least 2 repair attempts were made (on the same issue) within the first 12 months.

 

here's some good tips about the lemon law: http://www.lemonlawamerica.com/Lemon-Law-Tips.htm

 

 

The OP is from Canada, we don't have lemon laws here, like you guys do. I agree with the statement about tire wear and alignments, and I actually think that tires that have started to wear due to alignment will actually wear out faster after the alignment is corrected. Same as rotating tires after you noticed the front tires are worn on the shoulder. Put them on the back and the tire will wear out faster.

 

The OP should go to a good 4 wheel alignment shop. All 4 wheels can be measured, and back when I was still able to work, I was doing alignments all day long. Was not uncommon to find the the rear end was not installed square to the chassis. It has been 20 years and loads of narcotics for pain, so I cannot recall what that setting was called, but it basically used a projected line up the middle of the chassis, and compared that to the same line being projected from the front to the rear. I wish I could remember what that was called or what the logic was for it, but, it would fix tire wear issues on GM X bodies, and the J body cars. Just because there is no official adjustment does not mean it cannot be out of spec. Most shops back then did not do 4 wheel alignments on most cars, and when they did, it was only cars that could be adjusted and then they would screw it up by using fender washers on the rear hubs instead of the proper shims. Anyways, a long diatribe to support the notion that alignment is important to confirm and should be done on all 4 wheels.

pm26 Senior Enthusiast

pm26

Posted
Posted
Good day....I have a 2009 GMC Sierra Nevada Edition Quad Cab....This edition of truck is widley sold in Canada....It has a 4.8L with a 4 speed automatic trans......my truck new I would be lucky to get 380 kms per tank.....now at 40, 000km I can get over 520kms per tank. The truck has only had a slight oil leak between the engine and the oil filter adaptor port....In the Niagara Region, there is an alignment shop called Ace alignment....these guys are so good that they can catch factory defects....I would suggest to take your truck to the best alignment shop in your region and have a full alignment check.....tire pressure (on the factory tires) should be 50lbs psi....I find that these trucks do lag in first gear with a `soft foot`. Ethanol enhaced gas can burn quicker.....

 

 

50 PSI? where the hell did you pull that number from.. the proper COLD pressure for FACTORY tires is whatever is stamped on the plaque located in the drivers side door jam.

 

 

mine says 32 psi cold for the 275/55R20s. and the 2008 GMC Sierra 1500 SLE parked next to my vehicle with the 265/70R17s says 35 psi..

 

 

The only tires that are inflated to 50+ psi would be LT series on 2500 HD trucks and up.

dmac Enthusiast

dmac

Posted
Posted
Good day....I have a 2009 GMC Sierra Nevada Edition Quad Cab....This edition of truck is widley sold in Canada....It has a 4.8L with a 4 speed automatic trans......my truck new I would be lucky to get 380 kms per tank.....now at 40, 000km I can get over 520kms per tank. The truck has only had a slight oil leak between the engine and the oil filter adaptor port....In the Niagara Region, there is an alignment shop called Ace alignment....these guys are so good that they can catch factory defects....I would suggest to take your truck to the best alignment shop in your region and have a full alignment check.....tire pressure (on the factory tires) should be 50lbs psi....I find that these trucks do lag in first gear with a `soft foot`. Ethanol enhaced gas can burn quicker.....

 

 

50 PSI? where the hell did you pull that number from.. the proper COLD pressure for FACTORY tires is whatever is stamped on the plaque located in the drivers side door jam.

 

 

mine says 32 psi cold for the 275/55R20s. and the 2008 GMC Sierra 1500 SLE parked next to my vehicle with the 265/70R17s says 35 psi..

 

 

The only tires that are inflated to 50+ psi would be LT series on 2500 HD trucks and up.

 

 

Inside Door Jam

post-68927-1320267600_thumb.jpg

post-68927-1320267600_thumb.jpg

post-68927-1320267600_thumb.jpg

post-68927-1320267600_thumb.jpg

BlackZ71Silverado Senior Enthusiast

BlackZ71Silverado

Posted
Posted
Good day....I have a 2009 GMC Sierra Nevada Edition Quad Cab....This edition of truck is widley sold in Canada....It has a 4.8L with a 4 speed automatic trans......my truck new I would be lucky to get 380 kms per tank.....now at 40, 000km I can get over 520kms per tank. The truck has only had a slight oil leak between the engine and the oil filter adaptor port....In the Niagara Region, there is an alignment shop called Ace alignment....these guys are so good that they can catch factory defects....I would suggest to take your truck to the best alignment shop in your region and have a full alignment check.....tire pressure (on the factory tires) should be 50lbs psi....I find that these trucks do lag in first gear with a `soft foot`. Ethanol enhaced gas can burn quicker.....

 

 

50 PSI? where the hell did you pull that number from.. the proper COLD pressure for FACTORY tires is whatever is stamped on the plaque located in the drivers side door jam.

 

 

mine says 32 psi cold for the 275/55R20s. and the 2008 GMC Sierra 1500 SLE parked next to my vehicle with the 265/70R17s says 35 psi..

 

 

The only tires that are inflated to 50+ psi would be LT series on 2500 HD trucks and up.

 

 

Inside Door Jam

 

 

 

 

Strange.......What kind / brand of tires came on that truck?

dmac Enthusiast

dmac

Posted
Posted
Good day....I have a 2009 GMC Sierra Nevada Edition Quad Cab....This edition of truck is widley sold in Canada....It has a 4.8L with a 4 speed automatic trans......my truck new I would be lucky to get 380 kms per tank.....now at 40, 000km I can get over 520kms per tank. The truck has only had a slight oil leak between the engine and the oil filter adaptor port....In the Niagara Region, there is an alignment shop called Ace alignment....these guys are so good that they can catch factory defects....I would suggest to take your truck to the best alignment shop in your region and have a full alignment check.....tire pressure (on the factory tires) should be 50lbs psi....I find that these trucks do lag in first gear with a `soft foot`. Ethanol enhaced gas can burn quicker.....

 

 

50 PSI? where the hell did you pull that number from.. the proper COLD pressure for FACTORY tires is whatever is stamped on the plaque located in the drivers side door jam.

 

 

mine says 32 psi cold for the 275/55R20s. and the 2008 GMC Sierra 1500 SLE parked next to my vehicle with the 265/70R17s says 35 psi..

 

 

The only tires that are inflated to 50+ psi would be LT series on 2500 HD trucks and up.

 

 

Inside Door Jam

 

 

 

 

Strange.......What kind / brand of tires came on that truck?

 

 

 

 

 

Firestone Transforce AT LT245/70R17.....Most "Nevada Edition" trucks sold here in Canada came with these tires....

post-68927-1320268931_thumb.jpg

post-68927-1320268931_thumb.jpg

post-68927-1320268931_thumb.jpg

post-68927-1320268931_thumb.jpg

old-chevy-dude Senior Enthusiast

old-chevy-dude

Posted
Posted
Good day....I have a 2009 GMC Sierra Nevada Edition Quad Cab....This edition of truck is widley sold in Canada....It has a 4.8L with a 4 speed automatic trans......my truck new I would be lucky to get 380 kms per tank.....now at 40, 000km I can get over 520kms per tank. The truck has only had a slight oil leak between the engine and the oil filter adaptor port....In the Niagara Region, there is an alignment shop called Ace alignment....these guys are so good that they can catch factory defects....I would suggest to take your truck to the best alignment shop in your region and have a full alignment check.....tire pressure (on the factory tires) should be 50lbs psi....I find that these trucks do lag in first gear with a `soft foot`. Ethanol enhaced gas can burn quicker.....

 

 

50 PSI? where the hell did you pull that number from.. the proper COLD pressure for FACTORY tires is whatever is stamped on the plaque located in the drivers side door jam.

 

 

mine says 32 psi cold for the 275/55R20s. and the 2008 GMC Sierra 1500 SLE parked next to my vehicle with the 265/70R17s says 35 psi..

 

 

The only tires that are inflated to 50+ psi would be LT series on 2500 HD trucks and up.

 

 

Inside Door Jam

 

 

 

that says 45psi not 50psi.. but I doubt 5 psi is going to have a major affect on the tire wear, the psi will fluctuate more than that during normal driving.

 

 

curious though that the Canadian spec is 10 pounds higher than the U.S. spec.

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