

Taking a trip to SA,TX From Co,Springs in my 04’ Yukon Denali XL. I want to do a few things before heading out and wanna see what things I should do, got a small list going so far.
I’ve fixed few leaks, all fluids are changed did a tune up, did some cleaning in the intake with newer MAF and TPS due to codes p1516 and maf code. No codes since then. Any tips would be appreciated.