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Tune up Mileage

Tune up Mileage

Postby AMMazar [OP] » Jul 20 2012, 8:28pm

Hey Guys, just picked up an 08 GMC Sierra 5.3L and I keep hearing that these things don't require a tune up until 100K. This is my first new GM product and am currently a VW mechanic :lol: and am having a hard time grasping that size of plug interval. I have searched and seem to be coming up with everything but the information I am looking for. The truck currently has 40,XXX on it and was thinking about doing plugs, because it's what I usually do when I buy a used truck. Am I wasting my time and money? Thanks guys!
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Re: Tune up Mileage

Postby ASTE25 » Jul 21 2012, 12:24am

If it's got the factory plugs and the engine does not have a mechanical problem they should last the whole 100k miles.
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Tune up Mileage

Postby Machster69 » Jul 21 2012, 12:28am

Plugs are 100k, there is however other maintenance that can be done... Your close to an air filter change(50k i believe), trans fluid/filter service etc... The manual has suggested intervals, or if you have a shop manual they generally include more detailed mileages for certain services...
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Re: Tune up Mileage

Postby hurkulees » Jul 21 2012, 2:58am

Im at 88k, gonna do a tune up now, just got intune and cai. What plugs/wires for my 07 5.3l?
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Re: Tune up Mileage

Postby starspangled6.0starspangled6.0 is online! » Jul 21 2012, 3:04am

Get the OEM plugs. AC Delco is the best... anything less is known to cause issues with these engines.
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Re: Tune up Mileage

Postby ASTE25 » Jul 21 2012, 3:14am

+1 on the AC Delco. You can nver go wrong with them.
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Re: Tune up Mileage

Postby hurkulees » Jul 21 2012, 3:46pm

starspangled6.0 wrote:Get the OEM plugs. AC Delco is the best... anything less is known to cause issues with these engines.


roger, thats what ive always used. Just makin sure.
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Re: Tune up Mileage

Postby AMMazar [OP] » Jul 23 2012, 3:23pm

Thanks guys, I am still learning how to use this site and ironically found my answer right after I posted this thread and then couldn't find this thread again. But, while this is open and fuel prefrences and does anyone have any luck with fuel injector cleaner? I have read that the occassional rough idle is fairly normal with the 5.3L but I would like to lessen my issue if at all possible.
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Re: Tune up Mileage

Postby ASTE25 » Jul 23 2012, 5:48pm

I just run good quality gas. I have never put any fuel injector cleaner in my truck. It's not a bad idea to do it, I just never found a need to do so.
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Re: Tune up Mileage

Postby starspangled6.0starspangled6.0 is online! » Jul 23 2012, 6:10pm

Isn't there already a lot of detergents and cleaners in gasoline, anyways?
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