test driving 2017 F250 6.7 4x4, what problems/issues to look for? - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 08-07-2019, 04:45 AM Thread Starter
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test driving 2017 F250 6.7 4x4, what problems/issues to look for?

Driving a ways to test drive a 2017 F250 Lariat FX4 (w/ Lariat Ultimate package). Fairly low miles at 26k, the Carfax is clean. The truck has been on the dealer lot for 40 days and the price they're asking ($55k) is pretty good. So part of me thinks there's something wrong with it, but it could also be that the dealer is a Subaru dealership well in the city and doesn't get the kind of used car buyers looking for a F250 diesel.

I pulled an Oasis report that shows only a few minor warranty items done:

1. connector C408 for the touchscreen needed to be cleaned and resealed
2. sunroof slides were broken (replaced)
3. the 3 pronged end of the block heater's cord needed TA-32 applied to the cap

I plan to:

1. check the idle hours vs total hours
2. verify all electronics/bells and whistles work
3. drain the water separator
4. check for leaking/evaporated coolant or other signs of any fluid leaks.
5. check for any signs of modifications (they've got aftermarket rims and tires, so other mods may be likely)
6. drive till it's at full operating temp, engage 4x4 and e-locker
7. check for rust

If everything checks out I'll put down a deposit and take it took a diesel mechanic to give it a thorough inspection, but what other red flags in the 2017 can I look out for?

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post #2 of 2 Old 08-07-2019, 11:53 AM
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Oasis #2 listed above and water ingression into the rear bed wiring harness are the only two things I can remember as common on the 2017.

#1 & #5 on your to do list are on my list of close scrutiny.
I like idle hours at 15% or less; with low total hours for miles driven [i.e. high lifetime mph/ freeway driving], mine was 11% idle with lifetime avg of 53 mph when I bought it. Now I'm up to 13% idle/ 50mph avg as I drive more typical than previous owner.

Make sure it wasn't 'tuned' as that can mean 'abused' also, unless you know the previous owner.

Primary rad seems to leak on all eventually. Mine comes and goes depending on weather/ temperatures.

2012 F350 SRW CCLB Lariat FX4 300K Miles
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