Is the radiator fan working correctly? if u already changed the thermostat and coolant level is good, the radiator fan would be the next thing i look at. I pulled numerous 5000 lb trailers in 100+ weather with no issue.
I have had many intakes on different vehicles. I had a volant on my tahoe for a few years but took it off because all it did is make a lot of noise while pulling trailers with no noticeable power gain without a tune. Some vehicles yes, others no. If you do other mods and a tune go for it but if...
Yea i have a 5.3 with 3.73 gears. It does decent towing a car around. Pulled my fj40 2400 miles across country. Nothing to brag about though. I have a 4500 pound camper and it doesn't like it very much i guess because of the wind resistance. The truck pulls fine just the 5.3 is a little weak.
Didn't realize the 6.0 still had a fan clutch is 2007. My 2007 5.3 only has a electric fan. How did u check the clutch? I would just replace the fan clutch anyway. That is going to affect your temp at idle. I replaced the fan clutch on my brothers truck with an oem for the dealer a few years...
I do not have my tahoe here to look at it but i think there is a universal joint in the steering shaft a few inches above the rack. I would look at that first. Cant say I have ever seen a rack and pinion with play in it. Not questioning you but did you change all 4 tie rods or just the outer...
With a sealed bearing on newer cars like this one, checking for play like this usually does not help. If you actually have play in it, its prob been making nose for a very long time. You can not always jack it up and put it in gear to hear s bad bearing ether because then you do not have a load...
Do a compression test on that cyl. Prob will not even take 5 min. You can rent one from the parts store if you do not have one. If the compression is good, one easy trick is to swap out the coil with another cyl and see if the problem follows. Just because it has spark does not mean it cant be...
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