PSD Engine Life?

[AdamBomb]

Hi to all,
I am new the forum and diesels aswell. I am looking at purchasing a f250 '99 7.3L 4x4. I want to know how many miles these engines can last and what to check when buying a used truck with 100k + Miles.
Thanks in advance.
Adam

 

[95_stroker]

If cared for properly, its just getting broke in. Injectors, fuel pump, turbo, water pump etc etc...... basically your accessory engine equipment will need regular R&R but the engine block and rotating assembly can got for 500+K miles.

 

[roosterdiesel]

Welcome to SDD!

These engines have been known to run a few hundred thousand miles when well maintained.

1) check air filter box for cracks or signs of not sealing...pull intake tract off turbo look at fins for wear, check endplay, and that it spins freely

2) ask for maintence records

3) pull oil fill lid while running for excessive blow-by

4) if auto....check and smell tranny fluid

5) check the coolant for coolant additive maintenance

Those are things I did when looking at mine.

 

[DavidJ]

The motors are awesome, it's the tranny's you got to watch!

 

[ole_blu]

Just wondering whats the most miles you guys have on your 7.3 powerstrokes? Mine is a 99.5 and have 240,000.
In a FS2000 ad in Diesel Power mag there was a guy that claimed 524,xxx on the original motor.

 

[Ford_Forgotton]

There are several DOCUMENTED 1-million mile powerstrokes. Granted, they have gone thru a couple trannies, handful of injectors, but still on the parent bore of the block. These are 94-97 trucks.

International claims the 444 block should be able to go 500,000 miles before a major overhaul of the block.

 

[Tail_Gunner]

I've got about 265K so far. Nothing out of the normal maintenance things so far.

 

[jakebrake1976]

I've got a 99 f-250 with the 7.3 and 168000 miles, but in the mornings if i don't let it warm up for about 5 or 10 minutes. it is sluggish BAD. If i were to pull out in front of on coming traffic, I would be toast.Anyone have any idea what my problem is?

 

[Tail_Gunner]

I've got a 99 f-250 with the 7.3 and 168000 miles, but in the mornings if i don't let it warm up for about 5 or 10 minutes. it is sluggish BAD. If i were to pull out in front of on coming traffic, I would be toast.Anyone have any idea what my problem is?

I would guess your EBPV isn't opening when cold and you push the "go-pedal" down. It should open after the engine warms, as well as when the right foot goes down before then. If it doesn't then maybe your Exhaust Back Pressure Sensor maybe bad or the tube plugged?

 

[Ford_Forgotton]

I've got a 99 f-250 with the 7.3 and 168000 miles, but in the mornings if i don't let it warm up for about 5 or 10 minutes. it is sluggish BAD. If i were to pull out in front of on coming traffic, I would be toast.Anyone have any idea what my problem is?

Agree with the previous post, Exhaust Back Pressure Valve is closed.

The EBPV will close when its cold out, and it creates a MAJOR restriction to the exhaust to help the engine warm up.

If you take off right after startup, and try to jump into traffic, your going to get a suprise! Turbo Lag like you wouldnt believe!

Even a correctly operating EBPV will show this lag, as it takes a couple seconds for the engine to generate the needed backpressure and RPMs to "force" it open when cold.

In a perfect world, you would wait to leave until the truck was warm, but, thats not always possible.

I dont think anything is "broken", but its definately noticeable. I live RIGHT on the freeway, so I get bit by the cold truck LAG also, and my EBPV works just fine.