Spark plug change

[randy.channell]

I've got a 2014 Sierra 1500 5.3 with 73k. I'm going to be towing a 4300lb travel trailer from Central Ohio to Southern Florida this July. I figure I should tune her up before I go. Should I stay stock, or upgrade the plugs? Suggestions? Thank you.

 

Randy

 

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[1SLOW1500]

The stock plugs are great and I wouldn't even worry at that mileage. But stock engine stay stock. I would focus more on Spark plug wires and use dielectric grease. Change the belt, check fluids and  top off but also oil change. I like to check the brakes and replace if it looks like they need to be done soon anyways. I have gone  as far a O2 clean and pull the intake tube and maf out and clean them. Peace of mind. 

[randy.channell]

I'll check into that. Thank you

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[davester]

spin the idlers/tensioners with the belt/s off, to make sure they still good.  don't want them to seize up on you in the middle of nowhere..