AaronHurd

how much life can be expected on stock spark plugs in a 02 5.3 tahoe

nosefirst

If they are original plugs, I think they are AC. They are good plugs. Technically you should replace them every xxxxx miles? What is it guys?, 30K?

What do they look like? I recently replaced mine in the Burb for the second time at around 100K.

Lesson learned....don't use Bosh.

Lesson learned....check the gap on "pregapped" plugs.

__________________
DRIVE IT TILL IT BREAKS

nosefirst

03 Tahoe
99 Silverado
98 Suburban

AaronHurd

I'm pretty sure there the AC's. I have 75k on the truck and they are original.......I'm I way over due!! If 30K is the number then they need to be changed for sure. Also I don't want to spend the $ 17.?? something each at the dealera trip to napa or autozone!. do you know the AC part number.....Thanks Aaron

GMMerlin

Check your owners manual!
Plug replacement isn't due till 100K

__________________
Why do you never have enough time or money to do the job right the first time, but enough time and money to do it again?
Got all the certifications
25 years ASE Certified Master Technician
GM WCT
Yea..I work at a DEALERSHIP....got a problem with that?

Want to diagnose cars like the Pros? FOR SALE: OTC Perception 2 channel Labscope (badged as a Matco Reality)
This is my personal labscope that I use to diagnose waveforms, like new, comes with leads and training video
PM Me for details