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2008 F350 Super Duty 6.4
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Just joined, have question on whether I should put a tuner on the 6.4 with 250k? It’s deleted etc. A lot of people said don’t touch the 6.4. It’s my first diesel, work truck. Any suggestions to keep the lifespan of truck? Do’s n donts...
 

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How is it deleted without a tuner being on it? If it doesn't show codes and IS deleted, I wouldn't do anything further except drive it.

I would change out all fluids: Rear end, brake fluid, coolant, flush transmission. Start putting money into a maintenance fund now because you are going to need it. Repairs get expensive quickly, even if you can do your own work. Find a reliable source of good diesel. This engine is not made to run on bio-diesel such as you get at Love's truck stops although the occasional fill-up hasn't seemed to hurt mine (one load in15K miles. Many others use ArchOil and/or Stanadyne additives. I do it occasionally.

Check your steering out on a rough road. If it washes out on you, the shocks may need changing. Easy job. In spite of what I have done, I think OEM brake hardware is best. Check the boots on your tie-rod ends. Replacing the tie-rod ends is pretty simple. Just get it aligned right away. Take a look at the dust shields on the end of the front axle housing. If they aren't there, no big deal. They are a pain in the butt to replace and normally only done when replacing axle shaft U-joints or hub bearings.

Go to the Ford.com site to get the manuals for the truck if you don't already have them. Read them, including the diesel supplement.

Welcome, and we hope we don't see you back here with a problem, but we'll try to help if you do.
 
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