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Is the 6.4L more reliable than the 6.0L?

150K views 31 replies 21 participants last post by  Officialfeisty 
#1 ·
My father is getting rid of his 05 F350 6.0L/torqshift because of all the issues that it has had, 5 injectors-horrible mileage-and a recurring problem with the turbo, all this in 38,000 miles. All those problems after having a 99 F350 7.3L with 110,000 problem free miles!

He first looked at Dodge, but they just didn't do anything for him, just to plain. Then he looked at Chevy and found one that he liked, but the dealership wouldn't work with him on the price at all. So today went to another Chevy dealer to get a price, which was much better. But on the way home he swung into the Ford dealer to take a look at the new SD's. After taking a 09 F250 for a drive and really liked it!! So he started to price up a 2010 F350 lariat, super cab, long box, DRW, FX4 package. And really liked the price that the dealership was able to work up.

But the only thing that he is worried about is if the 6.4L will have as many issues as the 6.0L's are known for. I know of 2 early production 08's that were bought back under the lemon law, but those are the only new SD's that I have heard of with any real issues. So does he have anything to worry about with the 6.4L?
 
#3 ·
Tell him to stay with the Ford. I can't say he will not have any motor problems but at least the rest of the truck will not fall to peices. I agree with CDP the DPF has caused a lot of problems with the big 3
 
#4 ·
I know a guy wwith one and the only thing he had a problem with was the EGR cooler went bad and blew all the coolent out on the road. I guess Ford knows about it and is busy fixing them as fast as they can.


Dan
 
#7 ·
6.4L are slow catching up in problems like the 6.0L.

Here's just a couple forums showing the issues of the 6.4L....imagine how many we don't see, or they don't go on truck forums.


http://www.powerstroke.org/forum/6-...picture-worth-1000-word-my-truck-blew-up.html

http://www.powerstroke.org/forum/6-4l-problems-forum/94607-blown-6-4-59000-miles.html

http://www.powerstroke.org/forum/6-...r-they-say-i-also-have-blown-head-gasket.html

http://www.powerstroke.org/forum/6-4-motor-problems/69717-thumping-knocking-video.html

http://www.powerstroke.org/forum/6-4-motor-problems/99001-another-puking-truck.html

http://www.powerstroke.org/forum/6-4-motor-problems/99185-when-should-i-finally-give-up.html

http://www.powerstroke.org/forum/6-4-motor-problems/98967-lemon-law-my-f350.html

http://www.powerstroke.org/forum/6-4-motor-problems/96386-8k-my-6-4l-done.html

http://www.powerstroke.org/forum/6-4-motor-problems/97158-white-smoke.html

http://www.powerstroke.org/forum/6-4-motor-problems/87819-check-oil-leak-out.html

http://www.powerstroke.org/forum/6-4-motor-problems/87938-6-4-drinking-coolant.html

http://www.powerstroke.org/forum/6-4-motor-problems/85983-oil-pan-seal-leak.html

http://www.powerstroke.org/forum/6-4-motor-problems/79602-blown-motor.html

http://www.powerstroke.org/forum/6-4-motor-problems/78735-big-oil-leak-now-wtf-41000miles-only.html

Problem truck? - Competition Diesel.Com - Bringing The BEST Together

6.4l Diesel Engines Built 5/14/2008 Through 11/7/2008 - Competition Diesel.Com - Bringing The BEST Together

Blown Rad? - TheDieselGarage.com

Seen my first blown up 6.4L Powerstroke - Competition Diesel.Com - Bringing The BEST Together

New coolant reservoir - TheDieselGarage.com

Pukin' degas - TheDieselGarage.com

Intercooler leaking - TheDieselGarage.com

white smoke - TheDieselGarage.com

Shudder - TheDieselGarage.com

6.4L owned itself - Powerstroke Nation

Buyer Beware, no warranties - Powerstroke Nation

6.4 leaking coolant - Powerstroke Nation

6.4L wont build more than ten pounds??? - Powerstroke Nation

Now this POS won't start! - Powerstroke Nation

dpf. killing me - Powerstroke Nation
 
#8 ·
i only looked at the first few, but:

- one had oil on the side of the truck. Guy admited he had a dpf delete but was running it without his chip or some crap. Well first ask yourself what happens durring regen and what happens when the engine is continously overfueled as the guy thought he was smarter then the engineers?

Thus not stock = to bad so sad.

- next one had an aftermarket air intake and was complaining about noise or something like that. Well ask your self how the pcm determines regen operation and frequency? Aftermarket air filters will cause excessive regen due to inaccurate airflow measurement, ever wonder why some guys complain that they get a cel with the aftermarket air box? They are actually the lucky ones.

- other guy broken rocker arm, yeah it can happen, with that said it happend a hell of a lot more on 7.3's then it ever does on a 6.4, or 6l for that matter. BTW the guy said he has a 10" penis extension, err i mean lift on the truck. So care to wager any bets that the truck is tuned? I mean because who actually goes to the cost to install proper gears for 38" tires?

- whats the worst thing about a 6.4? simple look under the hood, there are not many simple repairs, even an egr valve is a pain in the a$$, but the good ting is they dont fail too often. However they are mechanical and things can fail.

If you want a 6.4 or any dpf diesel then you will suffer a fuel ussage penatly to pre non dpf diesels, no mater the brand. Keep it stock and your chances of failure will be greatly reduced.

BTW i have only seen one failed 6.4l, it had about 5 melted pistons and no dpf, and these funny sct emblems with arrows on them. The guy claims the truck was stock. So just like how many blown up 6.4's not posted, compare that to how many that blow up that are umm " stock ".

Just a note the original poster, you realistically should not have that many problems with a 6l anymore, you may wish to try a different dealer. That being said, im taking into account you do proper maitnence and if you idle your truck all day change oil based on hour meter not milage. Take a look at your hour meter and see if it = your milage. 1 hr = 33 miles. Also what kind of turbo problems? Just asking because what may seem like a turbo may not be a turbo problem at all. (which may be why its reoccuring as they may never be actually fixing the cause of your concern)
 
#10 ·
Thanks for the replys everyone!!!

Just a note the original poster, you realistically should not have that many problems with a 6l anymore, you may wish to try a different dealer. That being said, im taking into account you do proper maitnence and if you idle your truck all day change oil based on hour meter not milage. Take a look at your hour meter and see if it = your milage. 1 hr = 33 miles. Also what kind of turbo problems? Just asking because what may seem like a turbo may not be a turbo problem at all. (which may be why its reoccuring as they may never be actually fixing the cause of your concern)
The biggest problem is that all, but one, of the problems have occurred when my father has been on his way south for the winter. 2 yrs in a row he get stranded with his 35' 5th wheel in tow, both times it was injectors. The truck does get all of its regular maintance, 5-6,000 mile oil changes, fuel filters every 10K, ect.

I should have been alittle more specific about the "turbo problem". What happened was dad was towing a trailer with about 7,000lbs up a hill that is about a 5-maybe 6% grade that goes for around 3/4-1mile. While going up the hill the truck started to make a loud "hiss or whistle" sound, and dad noticed that the boost gauge was bouncing from 35-0-35 and it did this about 8 times that he saw. BTW his truck is bone stock, no chip-intake-or exhaust mods. My guess is that it was the wastegate dumping the boost, but I have no idea why it was doing this. It did it only up that one hill, and hasn't done it since, he has put approx. 250 miles on since, just today he put on about 100 miles towing his 14K lb 5er and he said that the truck ran great. He has an appointment at the dealership for next week to get it looked at, but when it acted up he got pissed off, considering all the injector problems, and started looking for a new truck.
 
#9 ·
:whs:
I remember when the 6.0 came out and we could have been working on them 24/7. The 6.4 however has been great (thank god, as I don't like pulling cabs), rad leaks have been super common on the first ones, but that has been dealt with and the regen monitor is tempermental, dirty MAF sensors or aftermarket components without the supporting programming can make them regen alot more. I think they are a great truck, to bad ford didn't have this engine instead of the 6.0 and before dpf.
 
G
#17 ·
Sonic blue, You coudn't be more right about the oil in a 6.0. I change mine at 4000 miles and I replace the fuel filters every other oil change and I drain the seperator once a month. I have noticed a huge difference in the way this 6.0 runs since I have been following this maintenance practice.
 
#19 ·
Well after my dad talked to the owner of another local today about pricing a 2010 F350 6.4L and being told by the owner of the dealership that they will not order any trucks with the 6.4L and more because 50% of the 6.4L's that they sold have been back in with problems. He said that he refuses to sell a great truck with a POS motor!

So dad ended up going to look at and buying an extremely clean 03 F350 4x4,7.3L/auto, super cab, long box, dually with only 53,000 miles!! He is on his way home with it right now. Now all he has to do is sell is 05.
 
#22 ·
The only problems I've herd of in the 6.4 is that they get really bad fuel economy and that some of them were shooting fire out the tail pipe during regen.

i own a 6.4l psd and deleting the dpf and tuning it really helped the fuel economy and made it a whole lot more reliable.
 
#23 ·
I think if he finds a 2010 truck he likes, he will not be dissapointed if a dpf/cat delete with good tuner. He can have the tuner just turn off the dpf, he will get better milage and then hes just eliminating something easy. My uncle Was in the same situation, and he had a very late model 7.3. He saw the trouble that i went through with my 6.0 and hes gonna be glad he skipped it. He is really hard on a stock truck too.
 
#31 ·
Make that nine shortblocks now. Just torn down a 09 with 14,000 miles. The#2 piston is melted, part of a exhaust valve broke off and damaged the cylinder wall. The cause of all this damage was the pressure control valve on the high pressure fuel pump leaking. I drained 6.5 gallons of oil/fuel from the crankcase and another gallon from the CAC. The 6.4 is the biggest POS engine I have ever had the pleasure of working on. I feel sorry for anyone who owns one of these $50,000+ turd piles
 
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