drive the truck,just wear your seatbelt,remember we had cars/trucks before airbags,
just get the codes read,then figure-out the problem,dont waste your time cking plugs,they have a security clip on them,unless youve been monkeying around with them they dont just fall off,
if your truck gets hot pulling things going up hills,''CLEAN THE FINS''
i just ran this truck up 4-5 hills where it used to get ''HOT'',using a ''TECH2 SCANNER'' it never got over 205 degs,these are the same hills that just 2 weeks ago it would climb to 235 degs
ive been working on...
update2
hooked a trailer up[35' 2-car open],put 250 miles on it,84degs-70%humidty,sunny,4-5 little hills-[less then 1 mile long],tail wind and side winds
1.no over heating,ran 195-210 on the factory guage[never over]
2.a/c runs 52-56degs
3.coolant guage goes down 1-2 needle widths on...
1.i flushed it with a garden hose
2.i flushed it front to back and back to front,then blew it out with air,then shined a light thru it,,it was clear
3.yes i down shift to 5th 0r 4th,i try to keep the eng at 2000-2500 up hills,i don't like it lugging
4.my 06' LBZ never did this
5.this truck...
well ever since i bought this truck,it ran 210degs everywere,and when towing anything up hills ,it would climb to 225-230degs,
well i got pissed[nobody knew what was wrong]so i started looking at things myself,i replaced the cooling fan clutch,thermastats,flushed cooling system
nothing...
id be scared of that harbor frieght compressor,,the viair stuff is rated at 100% duty cycle,i was looking at a 400/450? portable unit to air up car tires on my trailer
great work again,,but have you thought about buying a bigger truck?,maybe a c6500,i think your duallys getting to its weight limit,with all your improvements
disconnect both batterys overnight[ck the voltage ,in the morning ck the voltage of each battery,you will find youve probably got 1 thats sucking the life out of the other