3rd Gen Engine and Drivetrain -> 2007 and up 6.7 liter Engine and Drivetrain discussion only. PLEASE, NO HIGH PERFORMANCE DISCUSSION!

6.7l REALLY THAT BAD?

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Old Dec 10, 2009 | 08:45 AM
  #76  
04ctd's Avatar
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From: Charleston SC
Originally Posted by Argo
lol.... I own both a 5.9 and a 6.7 and I much prefer to drive my 6.7. Its stock power is awesome....... even with the emissions junk on it. I went ahead and gave up my 5.9 to my 16 y/o daughter.......
i always say this to guys with gas trucks:

"yeah, gas trucks are okay, lots of girls have them...even my daughter had one, but she got smart, and got a CTD"

Originally Posted by Robert Chilton
Daily drive a 12V Only made it about 275k miles. Junk! Only had a head gasket, injectors, 2 turbos, 2 clutches, and an injection pump installed in the last 50k miles. All for 16.5 MPG in town and 19.5MPG on the interstate. Or 1 MPG intown better than my common rail motor with a reflash,a clutch, fuel pump, and a door seal gasket in the past 83k miles. I bought a 6.7 for the long haul and hate to tell ya this but the 04.5 is definitely the biggest pain of them all as far as the engine is concerned. The 08 gets the worst MPG empty but hey what do I expect from 4.44 gears. Maybe one of these days I will run the valves, that usually is worth 1.5 MPG in itself. Best bet is throw out these diesels and get an inline 6 gasser that put out 110 HP like big rigs ran for years. Still see them on the road from time to time. No emission problems or turbos to deal with. Progress is a beautiful thing
Robert, so you are saying you had 275k on your 12v, with major repairs lately,

and you traded your 04.5 for a 08?

how bad is your 08 MPG, and what mods?

Originally Posted by trailer bldr
I have had Fords since the '80's but the 6.0 is the deal breaker and GM is not an option period.
here's a question:

-what about the HVAC on the new trucks? my 06 HVAC has been bad since new, and now two blend doors are gone, and the ones left are broke and cracked, by the sound of things.

-how big are the 09/10's compared to a Mega? we LOVE our Mega, the back seat is JAM PACKED today (2 gym bags, 3 coats, 3 boxes to mail)

-will the 06 radio surround work in the 09 (in other words, can i transfer my in dash GPS unit to the new truck, and put the new trucks radio back in my 06) or will i have to leave my GPS investment in the dash of my 06 to trade it in?

-will the 06 bed cover fit? tonneau's are ~$900 or so. hate to lose it.


i hate to think of hate mods i have on my truck to lose.
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Old Dec 11, 2009 | 10:55 AM
  #77  
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Well I read a lot of these posts and I think I can boil it down to this.....

The 6.7 is laden with emissions garbage that you have to deal with. Any extra electronics are extra problems no matter how you slice it.

The new tranny is nicer.

The 5.9 has less to go wrong, and really when you guys say your 6.7 pulls better, you are saying your tranny is better. The engine is so similar in power it's not the engine that's making a difference. A $400 Smarty will bump a 5.9 to 425 HP and 850 TQ instantly.

The weak point of the 5.9 is the transmission, and the 48RE is actually a good transmission, just not as good as the 68RE.
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Old Dec 11, 2009 | 07:20 PM
  #78  
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From: exeter,ca
Originally Posted by Lost Lake
Well I read a lot of these posts and I think I can boil it down to this.....

The 6.7 is laden with emissions garbage that you have to deal with. Any extra electronics are extra problems no matter how you slice it.

The new tranny is nicer.

The 5.9 has less to go wrong, and really when you guys say your 6.7 pulls better, you are saying your tranny is better. The engine is so similar in power it's not the engine that's making a difference. A $400 Smarty will bump a 5.9 to 425 HP and 850 TQ instantly.

The weak point of the 5.9 is the transmission, and the 48RE is actually a good transmission, just not as good as the 68RE.
Great post. I agree the 48RE is the biggest problem. Put a good converter and valvebody and the story may change..
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Old Dec 19, 2009 | 01:33 PM
  #79  
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I just sold my 08 6.7 I pulled a 48 foot inclosed and loved it i put about 30,000 miles on it and they had to clean the turbo once. I got around 9-11 mpg loaded when I drove it empty it would get 18-20 mpg I loved the truck but I dont pull that trailer any more so I sold it. I kept my 02 and I love that truck it always runs and pulls hard I get about the same mpg as the 6.7.
I would buy another 6.7 but there is just something about my 02 the way it sounds and the way it runs i dont think i will ever be able to sell it.
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Old Dec 21, 2009 | 11:59 PM
  #80  
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From: Valparaiso, IN
Originally Posted by Mocho
Dodge has been failing, 24v, CR, now 6.7, everything is a step in the wrong direction.

Then there's people like me, who will have the same truck for 10-15 years.
i'm very happy with my VP powered truck, I've worked on VE,P-pump,VP,CR,and the new 6.7 trucks. Yeah they get a little hard to work on as they get newer. I favor the older engines but the power newer one put out is pretty impressive, they also have pretty good longevity too. Plus if you hate the way a 6.7 works...P-PUMP IT! You'll have the P-pump and a larger displacement.

BTW, if the newer CTD's are so bad in your opinion maybe you should engineer a better engine that meets the current EPA standards.

Originally Posted by Mocho
51 block
whats the 51 block?

Originally Posted by patdaly
wish it could be as simple as plugging a 5,000 dollar piece of electrical equipment in to find out what is going on with the space shuttle..........

Sorry, couldn't resist.
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Old Apr 14, 2010 | 07:03 PM
  #81  
Jammie Dodger's Avatar
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From: BC, Canada!
Wink

i can only give an opinion on what has been working for me.

buy a 2nd gen and get her rebuilt to your specs, then you will know what you have, with the advantage of a relatively simple truck to work on.

good body
tracker bar etc
cam by colt cams
clutch by south bend
rebuilt 5 speed
new turbo 4" exhaust
pac-brake
and i am privileged to say a 5.9 rebuilt by Piers Harry

and if you really want to go full out, get $$$ arb air lockers... [not yet for me]

anyway that is how i did it, and i'm very happy

edit, total cost is about half of a new 6.7
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Old May 9, 2010 | 05:46 PM
  #82  
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Originally Posted by rvman
I loved my 2001 5.9 truck but my 2008 6.7 is by far a superior truck.Would like to have fuel mileage my 2001 had but have not regretted trading.
That is the price you pay for the add horse power.My 03 does not get the mileage that 99 gets that was the price for the extra horse power.
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Old May 9, 2010 | 09:26 PM
  #83  
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From: Charleston SC
my buddy just bought a 97 king cab dually with 57k miles for $7k.

stored in a garage.

my 06 has 90k
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Old May 9, 2010 | 09:37 PM
  #84  
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From: Home: Kaplan, LA - Pipelining In: Pecos, Tx
Originally Posted by 04ctd
my buddy just bought a 97 king cab dually with 57k miles for $7k.

stored in a garage.

my 06 has 90k
Yeah well your buddy sucks.....


I wish I could roll across deals like that!
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Old Jun 1, 2010 | 10:13 PM
  #85  
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From: oklahoma
well to all that talks **** on the 6.7...take the emissions off i mean everything even the throttle blade egr do turbo back exhaust you wont have no probs i did mine at 5k i have had very minor probs the biggest prob was the throttle blade flappin shut under load and couldnt figure out what it was so did the delete bam fixed it and still running code free and also dont run a edge juice with attitude mine is completely un hooked except to moniter and turbo timer all it does is throw codes
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Old Jun 6, 2010 | 10:19 PM
  #86  
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From: mckinney texas
hey guys, i am new on here. i have a 2008 dodge dually 4door 4x4 6 speed stick shift. i amd putting a 5in turbo back on it and was wanting to know what the best programmer was to get. i was looking at the h&s xrt but i also like the smarty what do yall think
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Old Jun 6, 2010 | 11:15 PM
  #87  
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From: oklahoma
Originally Posted by cowboyperry
hey guys, i am new on here. i have a 2008 dodge dually 4door 4x4 6 speed stick shift. i amd putting a 5in turbo back on it and was wanting to know what the best programmer was to get. i was looking at the h&s xrt but i also like the smarty what do yall think
i would say smarty i love my s67 me i had edge and it was ok but nothing great smarty is pretty sweet just be carfull and leave what ever program you decide to go with tuned back a bit and let your truck get to full opperating temp before throwin the coals to it i learned the hard way and popped a head gasket prolly didn't help bein stacked though but the other to programers u mentioned i have heard no bad on
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Old Jun 8, 2010 | 12:13 AM
  #88  
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This thread has me confused now. I have a 2001 2500 with CTD...and I love the vehicle. Unfortunately the wife (soon to be ex) has this vehicle. I have the chance to land a very good deal on a 2007 3500 SRW Quad Cab with a 6.7.

Sounds like it's a great truck. My real question on this issue is this: is it advisable to purchase a warranty/extended warranty with this vehicle? Are there tweaks and adjustments that will need to be made on this model that a warranty addresses? I see a lot of posters making comments about some relatively minor issues. But, I don't really understand exactly what's being said etc.

So, if you were going to buy a 2007 with a 6.7, would you get a warranty? Any recommended should or should not do's?

This forum/site is great. Look forward to more great reads.
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Old Jun 8, 2010 | 07:16 AM
  #89  
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From: Home: Kaplan, LA - Pipelining In: Pecos, Tx
Charles

It would all depend. I would sit down and have a good honest converstation with the dealer who will be doing the majority of the warranty work if something goes wrong.

When I bought my truck, I did this with my dealer and we agreed that any mods done that cause damage, would not be warrantied. They agreed that it would be hard to blame a programmer for a seat motor, or a/c compressor going out, and agreed to warranty such items. One faulty HVAC system and your extended warranty will pay dividends.

It will be hit or miss if you are traveling and something happens, but, that chance vs the benefits of the Smarty and deletes are well worth the gamble.
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Old Jun 8, 2010 | 09:44 AM
  #90  
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Blake
Thanks for the advice. Apparently you have 30 days from purchase to get an extended warranty executed. I may take advantage of that time to research this more fully.

As for the Smarty and deletes....I've always been a proponent of leaving a vehicle 100% stock, well, with a powerplant like the Cummins that's been my philosophy. Never failed me on the 01 truck. However, it sounds like these Smarty/Deletes are the way to go.

I'm now in the Army as an Armor guy. In my previous life I was in the Navy fixing jet engines. I feel confident around jets but not too nifty around automobiles. Is this Smarty issue something a novice can accomplish? The past two days I've been looking at the site to get more info on the Smarty and I'm not too sure just yet.

Thanks again.

Last edited by charles.sulliva; Jun 8, 2010 at 09:45 AM. Reason: typo
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