Last Weekend's 100K Service, what I found

The good thing is I found nothing unexpected. 07 DC 4.0L
I helped my son change out his plugs, serpentine belt and coolant.
The plugs were original I think, 3 DENSO, 3 NGK. The gap on the old plugs was .065....New plugs were gaped at .040, antisieze used. We had no problem getting the old plugs out. I followed the tips posted here and all was done in about 1 1/2 hours. The belt was a bigger pain just because of the lack of room. I took the skid plate off and laid underneath while my son helped from top side. The belt looked good but we bought the truck used and for $28 I don't have to make a roadside repair
We drained the coolant, flushed the radiator, then I removed a heater hose from the core entrance at the firewall and flushed the system using the water hose. Blew air through the system to get the as much of the coolant out. Filled with distilled water and ran it a bit, drained and blew it out and filled with 50/50 coolant. We worked about 3.5 hours and he learned a lot and I saved a lot of $$$. All in all a good family outing

 

thats awesome i wish my dad would help me out when working on the truck but he's not mechanically inclined. Honestly though its great to hear about family helping out!

 

Good job! Did you do change the oil in the rear differential, transfer case and front differential if 4 wheel drive?

 

No other fluid changes, I am thinking about the drain/refill on the AT. Never have been a fan of the tranny flush unless you do it every 30K starting when new. It is a 2WD PreRunner