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Why 6.0s are so thirsty?

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Old 11-09-2017, 03:39 PM
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Tcc agitates the misfires. misfires cause extea greenhouse gas emissions and can break catalytic converters. so it unlocks. stalls should be recalibrated to unlock more as far as pressure goes and at lower speeds in bigger stalls. also lock at higher speeds . any stall above 3k or a loose nitrous converter should have that taken care of in tune and misfires softened up.
Old 11-09-2017, 04:40 PM
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Originally Posted by RedRocketZ28
I thought about doing that but didn't want the lights on the dash. I will see if I can't clean up the sensor first and if that doesn't work I will go to the next step. Most guys get away with cleaning up the sensor though.
Make sure you jack up the truck and check for play in the bearing too before only messing with the sensor. I replace a lot of bearings on those trucks for wear even before the ABS light comes on. And the wear can also effect readings (tone wheel moving back and forth). Although I haven't seen much of that, it is plausible.
Old 11-10-2017, 07:05 AM
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Originally Posted by tech@WS6store
Tcc agitates the misfires. misfires cause extea greenhouse gas emissions and can break catalytic converters. so it unlocks. stalls should be recalibrated to unlock more as far as pressure goes and at lower speeds in bigger stalls. also lock at higher speeds . any stall above 3k or a loose nitrous converter should have that taken care of in tune and misfires softened up.
That's interesting. I know I need to have my truck tuned, just more important **** always seems to be going on, haven't had time to sit down and learn HP though I did buy it. Stall is a 3,200. Weird that the lockup has gotten better as time has gone on. Initially it would stay unlocked at 70mph on flat ground, not anymore.
Old 11-10-2017, 09:04 AM
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I plan on messing with it this weekend as I need to get it fixed. The gentlemen who came and looked at my truck last night loved it and wants to buy it. I gave $15,500 for it, used it for the summer (~4500 miles), and am getting $17,000 for it. Not a bad trade off I suppose. Going to rock the 2002 Saturn SL2 for a few months and then look for something else to buy, lol.

With that being said, I will no longer need to figure out ways to get the MPG and power up.
Old 11-10-2017, 09:59 AM
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Originally Posted by AnotherWs6
That's interesting. I know I need to have my truck tuned, just more important **** always seems to be going on, haven't had time to sit down and learn HP though I did buy it. Stall is a 3,200. Weird that the lockup has gotten better as time has gone on. Initially it would stay unlocked at 70mph on flat ground, not anymore.
The trans does have shift adapts. They sometimes work with the tcx as well. Also pedal modulation.
Old 11-17-2017, 12:50 PM
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Originally Posted by big hammer
The 14+ trucks just take everything to a different level. The new 5.3 has so much more torque than the old one.
My buddy bought a 08 brand new with the 5.3 and just traded in on a new silverado with 5.3 and he says the old had more power driving. I was surprised with the added power and torque of the new 5.3.
Old 11-17-2017, 12:51 PM
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Originally Posted by tech@WS6store
Gm only has 3 cids now for lt v8 5.3 6.0 and 6.2.
I know but they should get rid of the 5.3 and replace it with the 5.7.
Old 11-17-2017, 02:22 PM
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Originally Posted by gagliano7
My buddy bought a 08 brand new with the 5.3 and just traded in on a new silverado with 5.3 and he says the old had more power driving. I was surprised with the added power and torque of the new 5.3.
Line them up and the new one will smoke it. The part throttle tuning on the new ones is pretty lazy
Old 11-17-2017, 03:26 PM
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I have to agree on the earlier tuning. We have an 08 Suburban, and it is very sharp off the line and in town. Flat-footing it getting up an onramp shows its limitations.
Old 11-21-2017, 09:41 AM
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Originally Posted by big hammer
Line them up and the new one will smoke it. The part throttle tuning on the new ones is pretty lazy
He says the opposite old one will smoke the new one.
Old 11-22-2017, 11:35 AM
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Originally Posted by gagliano7
He says the opposite old one will smoke the new one.
No it's not even close I've done it all.
Old 12-17-2017, 03:25 PM
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How about an update? I am amassing the parts now and a few of the engines are in assembly process.

Thread here
Old 12-18-2017, 09:45 PM
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Mines not thirsty.
Stock 6.0 using the LS1 accesories. I can pump today and it last me two weeks.
Old 12-18-2017, 10:35 PM
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In a truck its a different story
Old 12-20-2017, 09:22 PM
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Originally Posted by Mr.z/28
Mines not thirsty. I can pump today and it last me two weeks.

Sounds like sumthin' my wife would say...
Old 12-21-2017, 03:08 PM
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Anything can make gas last two weeks if it's hardly driven

Gas lasts for months in my lawnmower, during the winter.
Old 12-21-2017, 06:08 PM
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And fuel stabilizer makes it last all winter
Old 12-22-2017, 09:31 AM
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Originally Posted by big hammer
Line them up and the new one will smoke it. The part throttle tuning on the new ones is pretty lazy
Drove a new escalade and it felt sluggish unless i hammered it. Well, it was still sluggish then, too. I would have imagined it would have felt a lot punch-ier since it had a 6.2L... first thing i noticed was a lack of response. i would hate to buy a new vehicle and have to tune it right off the bat because i hated the way it felt, esp. with GM's propensity to void warranties.
Old 12-22-2017, 09:31 AM
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Originally Posted by Mr.z/28
Mines not thirsty.
Stock 6.0 using the LS1 accesories. I can pump today and it last me two weeks.
Mine is super thirsty, but E85... so, yeah.
Old 12-22-2017, 10:39 AM
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Originally Posted by wannafbody
And fuel stabilizer makes it last all winter
Hell I don't even do that and it lasts till the next spring every year


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