which one 6.0 or 7.3 - Ford Powerstroke Diesel Forum
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post #1 of 22 Old 05-03-2012, 07:40 PM Thread Starter
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which one 6.0 or 7.3

hey guys I'm new to the forum, but have been reading for months. I'm looking at buying a powerstroke and I need help in deciding. my options are

03'f-250 7.3,122000 miles,auto trans, loaded, leather,and all stock or

03'f-250 6.0 65000 miles, auto trans, loaded, clothe, appears stock with the exception of complete straight pipe exhaust, warn hubs

my problem is that it sounds like the 03' 6.0 is full of motor problems, can this truck be saved due to low milage? I won't be able to afford costly repairs all the time. I'm somewhat familiar with the 7.3, and my only concern with this is the trans. the 4r100 is in my opinion poorly programmed and I've seen 4 crap out between our 2 farms (lots of pulling wagons) between 101000 and 140000 miles. haven't had much with motor problem except a spun main bearing at 55000 (under warranty)

so what do you guys think price is pretty close. thanks in advance
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post #2 of 22 Old 05-03-2012, 07:47 PM
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I had em both, loved them, two totaly different beasts!

I LOVE my 6.0 and enjoyed my 7.3. I dont think I would have liked my 99 as much if it wasnt a 6 speed. Dont think I could do the 7.3 auto? But I never owned one so I cant knock it. I drove em but...

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post #3 of 22 Old 05-03-2012, 08:08 PM
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More power, sketchy egr/oil cooler problems
Less power, sketchy trans

Take your pic


2010 FORD F250 LARIAT CCSB 6.4
-H&S Mini Maxx / Edge Insight CTS / 4" Flo Pro Dump / 20" Fuel Hostages / 33" Toyo AT's / Airdog II 4G


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post #4 of 22 Old 05-04-2012, 04:25 AM
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My 04 6.0 is broke, #4 injector and clogged oil cooler. 168k
My 96 7.3 fires right up, 308k...

I do love the 6.0......just haven't been able to afford to fix it in 8 months.

Sent from my SCH-I500

Unfortunately had to Sell my ......2004 KR CC SWB FX4 - Edge insight cts, blue spring upgrade, updated HFCM drain plug, XDP coolant filter, CAT EC-1 rated coolant, Custom Diesel EGR delete, CAT delete, Rotella T6

SEE MY OIL COOLER REPLACEMENT AND EGR DELETE - http://www.powerstroke.org/forum/gen...tml?highlight=
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post #5 of 22 Old 05-04-2012, 04:45 AM
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do the trans cooler upgrade on the 7.3 if it is auto, havent heard anything about the program on the trans, cooler is the weak point way too small, so overheats and fails, then get the BTS trans, pull anything anywheres, fully warranted irregardless of mods. exhaust, air filter, tuner, that 7.3 will move on.

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post #6 of 22 Old 05-04-2012, 12:36 PM
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The 7.3 is not the holy grail of diesel engines that most people make them out to be. My dad had a 96 7.3 for over ten years and replaced stuff on it constantly. Sensors going out, injectors, glow plugs, fuel leaks, exhaust leak, starter, alternator, and more that I can't think of right off the top of my head. I have had my 6.0 for two years and the only problem I ever had was an injector stiction on cold start up. So I went on and replaced all 8, but hey so did my dad with his 7.3. The 6.0 is just as good of a motor if you take the EGR off BEFORE it causes problems and flush the coolant. Not to mention, power is not even a comparison between the two. Even towing the 6.0 does better and it has a better tranny. Power comparison between a tuned 7.3 and a tuned 6.0 is like comparing a Prius and a Cobra.... There is no comparison.

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post #7 of 22 Old 05-04-2012, 12:43 PM
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Don't be afraid of the 69.0 just because it is an 03. The rumor that 03s have all kinds of motor problems is just that, a rumor. I would much rather have the 03 round EGR cooler than the weak a** square one that the later trucks have.

7.3s are not problem free either. I wouldn't trust a stock 4r100 trans farther than I can throw it. The 6.0 is a much stronger motor, and they love to be worked hard and hot, but they must be maintained and monitored. If you take care of a 6.0, it will take care of you.

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Originally Posted by Tuscany View Post
Compounds FTW!!!
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post #8 of 22 Old 05-04-2012, 12:52 PM
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Can't say much about the 03, but I love my 06. Yeah they get a bad rap, but that was alot due to 7.3 owners treating the 6.0 like a 7.3. You CAN'T do that!

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post #9 of 22 Old 05-04-2012, 06:36 PM
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I like my 6.0 alot better than my buddies 7.3. Like stated above there is a big difference performance wise! I got one for sale for ya

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post #10 of 22 Old 05-04-2012, 07:07 PM
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If you want a truck that is more performance potential it's the 6.0 no doubt. Egr cooler and head gaskets like to go on them and it is about 5 grand to bulletproof a 6.0.

The 7.3 is a completely different engine the are slower but with a chip and exhaust and intake the will be a tad faster then a stock 6.0 but 7.3 will run forever and will never let u down except for the CPS ( keep one In The glove box takes 4 min to replace)

As for the tranny I'm on 200,000 on the original 4r100 and it shifts fine. Change the fluid every 30000 and get a 6.0 cooler if u tow and bts valve body and it's a solid tranny I wouldn't worry.

U cant compare the 2 engines it's like Appel to oranges. Two totally different engine. If want performance potential get a 6.0 and be prepared to spend at least 3 grand on bullet proofing if u do it ur self. And the take alot of love and maintenance to run good

If u want reliability and longevity but slower get a 7.3 like I said u put a custom chip and exhaust the 7.3 is not that slow. 7.3 can take allot more neglect in maintenance the 6.0 also

You pick what u want performance or reliability

I will buy a 6.0 when i have the money there great engine onced fixed and if you like to do your own maintance and repairs a 6.0 will keep u busy but I like that stuff. If you don't that stuff get a 7.3

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