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5.3 engine life

How long can I expect my little 5.3 L engine to last

5.3 engine life

Postby 2tall [OP] » Jul 06 2012, 10:38pm

Hi Guys
Im wondering how long my little 5.3 L engine will last, 103000 miles now on my 2002 LS, Hypertech and new pipe and muffler, pulls the RV much better, I do all the maintenance reqiured and drive it easy.
Im considering a Duramax around 2005 model year, looks like they will go much longer than a gas engine.
Anyway how are your 5.3 L engines doing and how many miles do you have on them now?
Thanks Ron
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Re: 5.3 engine life

Postby Z71Silvy » Jul 06 2012, 10:40pm

My parents have a 2006 Yukon with the 5.3, 180k miles, and it honestly runs like new. They have replaced plugs, air filters, and oil.... that's it. That is the whole reason I got my truck with the 5.3, I drive over 25k miles a year and needed a truck that would reach 200k miles without skipping a beat!
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5.3 engine life

Postby Machster69 » Jul 06 2012, 10:46pm

Drive last one to 185k...
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Re: 5.3 engine life

Postby shawncav101 » Jul 06 2012, 10:47pm

just bought one with 170k... I have friends with well over 250, and still going strong.
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Re: 5.3 engine life

Postby 2tall [OP] » Jul 06 2012, 11:03pm

Wow, thanks guys, looks like mine is barely broken in.
Ron
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Re: 5.3 engine life

Postby 04SilverRdBlk » Jul 07 2012, 12:36am

We have a 5.3 2006 Envoy Denali and it has well over 130k miles on it. Sounds and runs even better than the day it was bought USED.
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Re: 5.3 engine life

Postby EKinMN » Jul 07 2012, 1:44am

I cannot wait to see how far mine will go. This is my second 5.3l, but I traded the first (an Avalanche) waaay to soon.
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Re: 5.3 engine life

Postby Jammer » Jul 07 2012, 2:41am

My Vortec 4.2 in my TrailBlazer has 403,000 miles on it & still going strong, so I imagine the 5.3 will last a LOOOOONG time!
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Re: 5.3 engine life

Postby 2tall [OP] » Jul 07 2012, 3:05am

No overhaul, the engine is untouched from the factory?
that is amazing.
Ron
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Re: 5.3 engine life

Postby starspangled6.0 » Jul 07 2012, 3:07am

I know these aren't 5.3L engines, but you get the idea that GM knows what they're doing:

My last truck had the 5.7, with about 300K miles
A friend of mine has the 5.7, with about 250K miles
I've got the 6.0, and it has 125K miles... runs like new.
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2007 Chevy Silverado 3500HD LBZ Duramax -sold
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