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Username Post: Buying Used 2008 Suburban LTZ        (Topic#349804)
black95jimmy 
"11th Year" Silver Supporting Member
Posts: 9274
black95jimmy
Age: 74
Loc: Venice, FL
Reg: 01-05-02
02-24-18 12:35 PM - Post#2725445    

Anything to avoid in these years?

My 2000 is all worn out. Looking for a southern vehicle.

Thanks

82 Monte Carlo SC, 355 w/Vortec heads, roller rockers, 670 Street Avenger, TRUE DUALS.
2009 Sub.5.3L LTZ 30 Gallons of gas @ $2.49/gal. bla bla bla.


 
black95jimmy 
"11th Year" Silver Supporting Member
Posts: 9274
black95jimmy
Age: 74
Loc: Venice, FL
Reg: 01-05-02
02-27-18 07:20 AM - Post#2725812    
    In response to black95jimmy

OK, guess they are all good.

82 Monte Carlo SC, 355 w/Vortec heads, roller rockers, 670 Street Avenger, TRUE DUALS.
2009 Sub.5.3L LTZ 30 Gallons of gas @ $2.49/gal. bla bla bla.


 
elcamino 
Dedicated Member
Posts: 5334
elcamino
Loc: Lake Superior-Michigan US...
Reg: 03-30-00
02-28-18 05:09 AM - Post#2725935    
    In response to black95jimmy

Any 10 yo vehicle with high miles is always a risk. The early models with Active Fuel Management (AFM) had oil burning issues, some were ok and some were not so its a crap shoot. Carbon buildup on pistons can cause the piston rings to stick in their grooves. Stuck rings can fail to seal the combustion chamber, leading to oil consumption and low compression, negatively affecting engine performance. Excess piston deposits can also lead to pre-ignition and engine knocking, which results in lost power, reduced fuel economy and, in severe cases, engine damage. This problem can manifest with as little as 30,000 miles.

IMO you would be better of with a Yukon Denali XL with the 6.2L engine (standard on Denali's) as those 6.2L engine do not seem to suffer from oil consumption like the 5.3L does. But the 6.2L coupled with standard Denali All Wheel Drive are going to return lower mpg (premium fuel req'd), typically about 1-2 mpg less with 380 hp vs. 5.3L 310 hp. The 6.2L also has AFM in suvs.




Active Fuel Management (formerly known as displacement on demand (DoD)) is a trademarked name for the automobile variable displacement technology from General Motors. It allows a V6 or V8 engine to "turn off" half of the cylinders under light-load conditions to improve fuel economy.

Mike
2017 GMC Sierra Denali Ultimate 6.2L(420hp)/8-sp Z95
2016 Polaris RZR 900 EPS


 
black95jimmy 
"11th Year" Silver Supporting Member
Posts: 9274
black95jimmy
Age: 74
Loc: Venice, FL
Reg: 01-05-02
03-07-18 06:52 AM - Post#2726727    
    In response to elcamino

Thanks , looked a Danali, premium fuel was a turn off.

Looking at an 09 LTZ this weekend, 137k.


82 Monte Carlo SC, 355 w/Vortec heads, roller rockers, 670 Street Avenger, TRUE DUALS.
2009 Sub.5.3L LTZ 30 Gallons of gas @ $2.49/gal. bla bla bla.


 
black95jimmy 
"11th Year" Silver Supporting Member
Posts: 9274
black95jimmy
Age: 74
Loc: Venice, FL
Reg: 01-05-02
03-08-18 07:47 AM - Post#2726854    
    In response to black95jimmy

My current suburban has torsion bars, what did they do on the newer models?

82 Monte Carlo SC, 355 w/Vortec heads, roller rockers, 670 Street Avenger, TRUE DUALS.
2009 Sub.5.3L LTZ 30 Gallons of gas @ $2.49/gal. bla bla bla.


 
elcamino 
Dedicated Member
Posts: 5334
elcamino
Loc: Lake Superior-Michigan US...
Reg: 03-30-00
03-09-18 05:56 AM - Post#2726971    
    In response to black95jimmy

Don't know, have not looked them, Drive a 4wd truck. Winter up her from Nov to Apr so 4wd is popular. Hard pressure to find 2wd trucks around here, no one wants one.

Ps- my 2017 Sierra Denali 4wd 6.2L with 8-sp trans averages 19.7 mpg (and I use AUTO 4wd a lot in winter), about 23+ on the hwy if I stay 70 or less which is no problem, mostly 2 lane blacktop around here. My last work 'burban (GPS Survey Team), K3500 special fleet with 350 and 4.11 rear axle got 10 mpg best. That SUB was tough, 125,000+ miles and only needed brakes once.


Mike
2017 GMC Sierra Denali Ultimate 6.2L(420hp)/8-sp Z95
2016 Polaris RZR 900 EPS


 
black95jimmy 
"11th Year" Silver Supporting Member
Posts: 9274
black95jimmy
Age: 74
Loc: Venice, FL
Reg: 01-05-02
03-11-18 01:38 PM - Post#2727218    
    In response to elcamino

Got the 2009 yesterday.

82 Monte Carlo SC, 355 w/Vortec heads, roller rockers, 670 Street Avenger, TRUE DUALS.
2009 Sub.5.3L LTZ 30 Gallons of gas @ $2.49/gal. bla bla bla.


 
Matt 
Moderator
Posts: 7791
Matt
Loc: SAV
Reg: 09-26-01
03-11-18 08:28 PM - Post#2727250    
    In response to black95jimmy

  • black95jimmy Said:
Got the 2009 yesterday.



Good to hear! Now lets see some pics!



 
black95jimmy 
"11th Year" Silver Supporting Member
Posts: 9274
black95jimmy
Age: 74
Loc: Venice, FL
Reg: 01-05-02
03-15-18 02:25 PM - Post#2727723    
    In response to Matt



82 Monte Carlo SC, 355 w/Vortec heads, roller rockers, 670 Street Avenger, TRUE DUALS.
2009 Sub.5.3L LTZ 30 Gallons of gas @ $2.49/gal. bla bla bla.


 
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