Have not hooked the horse trailer up yet going to do it tomorrow after work and take my daughter up to a indoor riding arena to ride her horse. I have read something about the water you are ralking about, anything that you guys are doing to help prevent this?

 

Drain the separator every month religiously and buy good quality fuel.

 

Where do I drain the separator at, if it's easy maybe I should open it up and drain it and see how much water is in there now while I have it home.

 

What egr delete kit do you guys recommend? Should I do a whole exhaust system instead of just doing a pipe in place of the DPF?

 

Well I pulled the horse trailer tonight about 40 miles round trip up to a riding arena we use. Pulls very smooth, really impressed with the ride which I am assuming is due to the longer springs the 08 has than my 05 and other pre 08 superdutys I have had. Power band was nice not a rocket but what is with about 10000 pounds hooked to it. Never felt like it was working or that it needed power just motored along like it was doing what it was meant to do. It did start a regen right after pulling out with the trialer, it flashed cleaning exhaust filter or something across the display by the gauges. I ran the truck the 20-30 minute drive with mixed across town and more driving 55 mph on the way to the barn. Was this enough time to let it do the regen and how do I known if it finished? So I guess now it's decision time on whether to buy or try to find a 6.7. Overall for the weekend I averaged 12 mpg per the gauge in the truck which includes a 80 mile round trip at 60, then some running around town and use here on the farm. Then I pulled the trailer and had it idling some for lights while unloading the horses tonight. So for me typical use and about the same as my 6.0 does. Would you say this is normal? With only 45000 miles on it I would say this is about as close to New as I can afford but lacks options I wanted. But as my wife said I can always add options but can not take miles off the truck. I known the decision can only be made by me but for my usage you guys think this truck is going to be reliable and efficient for me or am I opening up another can of worms like when I bought my first 6.0 New back in 06? Thanks for your guys help and who knows maybe I am becoming part of the 6.4 family.

 

If you can delete it, go for it.
IMHO, the 6.4 is just as good if not better than any other common rail diesel out right now.

The 6.7's had some radiator problems too.
Everything breaks eventually.
I really wouldn't be scared to buy one, theres always the odd truck thats just a disaster out of the gate, but theres not much you can do to avoid that, other than search through the forums and read all the threads about buying 6.4 trucks.

If you tow heavy, avoid +HP tunes maybe. The 6.4's can make insane boost sometimes on tunes, like almost 60 psi. Couple that with some timing, and its very possible to pop a head gasket.

 

Underneath the drivers door inside the frame rail, little yellow plastic handle with a hole underneath it. Catch it in a mason jar and see if you have any water in it. You might get wet, it's poring here just west of Detroit, don't know what it's like up in Freeland.

 

When I was getting prices from various sources I was told that more or less the only reason you would go with a full 4" exhaust was if you wanted it to be louder. I suppose if you're running some higher HP tunes those few feet of 3½" pipe and muffler might get your EGTs a little higher than they would with full 4".

NEXUS 4. IB AutoGroup

 

A full exhaust system isn't needed for doing the DPF delete. The stock exhaust system less the DPF and DOC are free flowing enough for the rpm range the trucks are designed to run in. If you run an extreme high hp tune, you may want to go with a 4" down pipe as well to help with exhaust temps. I used a pipe with bungs so that the sensors were in the pipe rather than tie-wrapped to the frame. It looks neater and the price difference wasn't that much. I also replaced the sensors with new and left the originals in the OEM pipes in case I had to return to stock in the future.

 

Eh, the 6.4s have a few inherent design flaws, like the front covers that cavitate if you run them at high RPM / tow heavy/frequently.

The pistons are also suspect if you plan to mod your truck. You see quite a few reports of pistons cracking, sometimes on stock trucks too.

 

Every engine has some type of design flaw, non are 100% perfect.
The 6.7 can crack heads and pistons too.
This is just the symptom of extreme heat stresses from tuners or severe towing.
The great part about 6.4 trucks, is that you can usually find one for fairly cheap, and 90% of their problems are emission related, so put a tuner on it and have a great truck.

Or go buy a cummins in a ram, then you can have 1000 HP and tow 70,000lbs, and get 30 mpg and it will also last 1,000,000 miles without even changing the oil.