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i have a 2006 f250 with a 6.0. i have completed many modification such as egr delete, oil cooler, blue spring, 6.7 banjo bolts, hpop upgrade 4" turbo back exhaust, etc. i have blown head gaskets, stuck injector, trany vibration in overdrive, i need new tires and to get my loose steering fixed. i am debating on puting 6 grand into the truck i have now or just bit the bullet and trade it in on a new truck. not sure what i will get im looking for thoughts or recommendations. i am torn between a duramax or the 6.4 or fixing the one i have. pleaSE POST AND LET ME KNOW WHAT YOU THINK.
 

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Personally, I'd fix the 6.0 with arp studs, because it's your truck and U know what U put it thru. But if it's between the 6.4 and certain d-max's, I'd choose d-max because the 6.4 is just to expensive to fix and the emmisions on it really handicaps the motor including bad fuel mileage.
 

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You may want to consider the age of the newer trucks you are talking about. 2007 and newer may contain even more emissions stuff that we try to stay away from. I would fix the truck.
 

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buy a 6.4!!!!!! there awesome
 

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Problems with 6.4 also, stay with th 6.0L. Landscaper I know is getting rid of his Dmax's to many repairs. Bought two new 6.7's so far, know price is what after. Drove the 2011 all I can is wow dam fast for a dump truck.
Still I love sound of my 6.0L, 6.7's to quiet.
 

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skip the 6.4 and go 6.7 if trading the truck in is a must.
 

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skip the 6.4 and go 6.7 if trading the truck in is a must.
Why is that? Because of the dpf and exhaust stuff? Any other issues besides the emissions stuff? I can't do the delete because they require testing in my county.
 

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I currently have a 06 KR with a 6.0 complete with ARP head studs, egr delete and all the goodies. I had a 6.4 2008 and loved it after I did DPF and EGR delete with SCT programmer and cold air intake. Tons of power and it got 17 around town and 21 on the hwy. Never had any problems with the 08 only sold it to get out of a payment. The 08 had 37's and would scream. The 06 is nice but the power sucks compared to the 6.4. Any of these trucks can have problems. They all have their own "characteristics". If you have the cash to get something newer, why not.
 

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6.4 would be a major down grade. 90% of the 6.4's i see that come in with a CEL ends up needing a HPFP
 

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Why is that? Because of the dpf and exhaust stuff? Any other issues besides the emissions stuff? I can't do the delete because they require testing in my county.
Think of the 6.7 as Ford's way of taking the International 6.4 and improving upon it.
 

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I would go 6.7 first unless you can find what you want in a nice 6.4. I don't know that I will invest in a 6L again.
 

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6.4 has its own set of problems just the same, I know because I owned one. If you're staying stock expect about 8-9 mpg around town and 12-13 tops on the highway.
 

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I had this same question this week my granny just went out thought why not just get a 6.4 and make easy power for cheap..but if anything goes wrong with the 6.4 it'll cost more to fix it than a 6.0 . If I was you I'd bulletproof your 6.0 upgrade injectors and build ur trans all depends on what you use ur truck for
 

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I owned an 08 with the 6.4 and i loved it except the milage sucked 10-13mpg in town and the best it got was on highway was 15mpg and before the DPF delete it was always having sensor issues related to the DPF. I now own an 04 6.0L and love it have had a few issues with it and doesnt have the power but no longer have to worry about the sensitive fuel system and who will service it when I travel because I'm deleted. Because it won't run right without a programmer so you just can't put the stock program back without putting the DPF back on. I do miss the fancier interior creature comforts of the 08 but I feel my 04 is way more reliable long term for me


Sent from my Autoguide iPhone app
 

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6.4 has its own set of problems just the same, I know because I owned one. If you're staying stock expect about 8-9 mpg around town and 12-13 tops on the highway.
That was one of the main reasons I went with a 6.0. The 6.4's are nice trucks though.

My main reasons were:
- cost of the 6.4's was noticeably higher
- didn't like the dpf and regen thing (and live in CA, so can't take it off)
- the mileage with the dpf won't be as good as with a tuned 6.0
- the smog check with the 6.0 is so easy, just a visual, and tap the throttle a few times
- a little bit less technology, easier to work on as a shade tree mechanic

The 6.4's make more power, have a better interior, and are really nice trucks. But, I figure I can chip it and make 400/800 with a few mods, so I'm not concerned about the power difference. It should be powerful enough.

Love the truck, and glad I went the way of the 6.0. No knock on the 6.4's though, they are great trucks also.
 

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That was one of the main reasons I went with a 6.0. The 6.4's are nice trucks though.

My main reasons were:
- cost of the 6.4's was noticeably higher
- didn't like the dpf and regen thing (and live in CA, so can't take it off)
- the mileage with the dpf won't be as good as with a tuned 6.0
- the smog check with the 6.0 is so easy, just a visual, and tap the throttle a few times
- a little bit less technology, easier to work on as a shade tree mechanic

The 6.4's make more power, have a better interior, and are really nice trucks. But, I figure I can chip it and make 400/800 with a few mods, so I'm not concerned about the power difference. It should be powerful enough.

Love the truck, and glad I went the way of the 6.0. No knock on the 6.4's though, they are great trucks also.
Yeah, not sure what part of Cali your in, but here in Jersey during the winter I would blow huge plumes of smoke during regen. People behind me literally had to back way off just for safety reasons because it would fog them out, plus I'm sure they all thought I was gonna blow up or something.

the other thing I couldn't stand was the fact you could be ruining your truck if you regularly shut it down during regen. Think about that hard for a moment, you get home from a long day of work only to have the message "drive to clean filter" on the dash. The regen could literally take 40 minutes sometimes. Also, you're blasting a ton of heat through your turbo when your in regen. Get home during or right after a regen and shut the truck down without letting the turbo cool down gradually and you'll be buying a new one in no time. Now I know that's the case with all turbos, but keep in mind your stock truck is blowing upwards of 1200-1400 degrees of exhaust during regen every 100-300 miles.
 

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Yeah, not sure what part of Cali your in, but here in Jersey during the winter I would blow huge plumes of smoke during regen. People behind me literally had to back way off just for safety reasons because it would fog them out, plus I'm sure they all thought I was gonna blow up or something.

the other thing I couldn't stand was the fact you could be ruining your truck if you regularly shut it down during regen. Think about that hard for a moment, you get home from a long day of work only to have the message "drive to clean filter" on the dash. The regen could literally take 40 minutes sometimes. Also, you're blasting a ton of heat through your turbo when your in regen. Get home during or right after a regen and shut the truck down without letting the turbo cool down gradually and you'll be buying a new one in no time. Now I know that's the case with all turbos, but keep in mind your stock truck is blowing upwards of 1200-1400 degrees of exhaust during regen every 100-300 miles.
I read stories about that. Damn. Nothing like getting home after a long drive, at the end of a long day, and having regen kick in five minutes from home. Ouch.
 

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I've owned both the 6.0 (220k miles) and the 6.4(110k miles) and I would personally say stick with the 6.0. I had the 6.4 in the shop 5 times in a few months span and had to get rid of it and stick with the 6.0, which I've been lucky with and haven't had any issues. Also you can't beat the sound of the 6.0 and 7.3's versus the newer quiet diesels
 
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