Shops quote $3,500–$5,000 for this one, and the quote usually isn't the ripoff, the job really is that big. Here's what's actually failing, what the correct repair involves, and the honest part: this is not a job I do in a driveway.
The 6.8L V10 is essentially the 5.4 Triton's architecture stretched to ten cylinders, and the three-valve versions inherited the same timing weakness: hydraulic chain tensioners that wear and collapse at cold start, letting the chains clatter against their guides until oil pressure catches up. The cold clatter, the P0016/P0017 correlation codes, the rough idle, it's the same failure signature 5.4 owners know, on a bigger scale.
The V10's second problem is finding anyone to work on it. These engines live in E-Series cube vans, ambulances, RVs and F-250/350 work trucks, vehicles that barely fit in a standard shop bay, owned by people who lose money every day the vehicle sits. Add a ten-cylinder spark plug service on an engine family famous for plug troubles, and most shops simply pass. The result: V10s run neglected until the clatter becomes a countdown.
The complete service, tensioners, full timing set, and all ten plugs done carefully with the right procedure, resets the engine's two biggest liabilities in one go. These V10s are workhorses that routinely run to very high mileage when the timing drive and ignition are kept healthy.
If your Ford is doing any of these, this is the likely cause:
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See how that range compares across Mississauga, Oakville, Milton, Brampton and Etobicoke in the GTA Repair Price Index, honest shop & dealer ranges for the jobs people actually get done.
Timing Tensioners, Complete Timing Set & 10 Spark Plugs is on my published list of jobs I turn down. It needs a hoist, a press or a machine shop, and I work out of driveways with hand tools. That list is public on my trust page. I'd rather lose the job than learn it on your engine, and you should be suspicious of anyone who says yes to this over the phone.
So here's what I can genuinely do for you, holding a $3,500–$5,000 quote. Both are real, both are flat-priced, and both are worth more than a bad yes.
Before you spend $3,500–$5,000, have someone independent confirm that's actually what's wrong. This is a diagnosis, not the repair, no hoist, no lift, nothing comes apart. I scan it, test it, look at it with you, and tell you straight whether their diagnosis holds up. If it does, I say so and you go pay them with confidence.
Book the second opinion →At $3,500–$5,000 on a car that might be worth not much more, plenty of people replace instead of repair, that's a completely reasonable call. If that's where you're heading, get the next car measured before you hand over money: 150 published points, at the seller's location, written report the same day.
Book a pre-purchase inspection →Tell me what you've been quoted and what the car is doing. $100–$250 flat, at your location, and you get a straight answer either way.
Rather just have the quote read? The free quote check tells you whether the number is in line, no visit needed.
Jobs on this car that ARE mine:
Not so you can do it yourself, so you can tell whether the shop quoting you understands the job:
That's the job. It's why this one belongs on a hoist instead of in a driveway, and it's why $3,500–$5,000 usually isn't a ripoff, it's a big repair honestly priced. What's worth checking is whether that's really what your car needs.
Get the diagnosis confirmed firstPlain version: Timing Tensioners, Complete Timing Set & 10 Spark Plugs needs equipment a driveway doesn't have, a hoist to get under it properly, a press or a machine shop for the parts that come out, and a controlled space for an engine or gearbox that's in pieces for days. I work out of driveways with hand tools. That's not false modesty, it's the published limit of what I take on, and it's listed on my trust page alongside the warranty.
What that means for you: this page is here to tell you what's failing and what it should cost, so you walk into a shop knowing the job instead of nodding at a number. And if you want that number checked before you pay it, that part I can do, $100–$250 flat, at your location.
Collapsed tensioners on a three-valve Triton-family engine end the same way every time: chain guides crack, debris circulates, and eventually a chain jumps, on an engine most shops won't rebuild and replacements aren't cheap for. For a work vehicle, the math is simple: one planned day of downtime now versus an unplanned dead truck during your busiest week.
Yes, and for E-Series vans and RVs it's usually the only practical option, since they fit badly in standard shop bays. We bring everything to wherever the vehicle lives. A level surface and a day of access is all we need.
Usually yes. The V10 bottom end is famously durable, it's the timing drive and ignition that age. If the body and transmission are sound, a timing-and-plugs service buys years more service life for far less than replacing a working van. We'll give you a straight answer on your specific vehicle when we see it.
No. Timing Tensioners, Complete Timing Set & 10 Spark Plugs is on my published list of jobs I turn down, it needs a hoist, a press or a machine shop, and I work out of driveways with hand tools. I'd rather lose the job than learn it on your engine.
Two things, and both are real. A second-opinion diagnostic at your car, $100–$250 flat, at your location, so somebody independent confirms that's actually what's wrong before you commit to a $3,500–$5,000 repair. And if you're weighing replacing the car instead of fixing it, a pre-purchase inspection on the replacement, $149–$399 flat, at the seller's location.
Because the useful part isn't the wrench. It's knowing what's actually failing, what the correct repair involves, and that shops quote $3,500–$5,000 for it, so you walk in knowing the job instead of nodding at a number. If you want that number checked before you pay it, that part I can do.
Send it over for a free second opinion. I'll tell you straight what the job actually involves, and if their quote is fair, I'll tell you that too.
Get a Free Second OpinionOther makes:
I'm not the guy who does this repair. I'm the guy who tells you whether you actually need it, before you spend $3,500–$5,000. Second opinion at your car, $100–$250 flat, in Mississauga, Oakville, Milton, Brampton and Etobicoke.
Book a Second Opinion Inspect a Replacement CarYour options on this one