Shops quote $1,700–$2,300 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 naturally-aspirated 3.5 TiVCT is the workhorse V6 in a generation of Explorers, including thousands of Police Interceptor Utilities that idled through entire shifts before hitting the used market. All those hours and kilometres take their toll on the hydraulic chain tensioners. A tensioner holds chain slack out using oil pressure plus an internal ratchet; when the ratchet and bore wear, the tensioner collapses at cold start and the chain runs loose until pressure builds.
A loose chain slaps its guides, that's the low-speed rattle you hear cold, and it lets the relationship between crankshaft and camshafts wander. The PCM notices the correlation error and sets P0016 or P0017. Hard starting creeps in as cam timing drifts: long cranks, especially after the vehicle sits.
The real risk on a worn timing drive is the chain skipping a tooth on the cam gears. Past that point the engine may not run at all, and the repair conversation changes from a timing set to valve damage. If you bought a high-kilometre Explorer, especially an ex-fleet unit, this is the known weak point to deal with on your schedule instead of the chain's.
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 Chain Tensioner & Complete Timing Set Replacement 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 $1,700–$2,300 quote. Both are real, both are flat-priced, and both are worth more than a bad yes.
Before you spend $1,700–$2,300, 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 $1,700–$2,300 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 $1,700–$2,300 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 Chain Tensioner & Complete Timing Set Replacement 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.
A collapsed tensioner gets worse with every cold start as the loose chain hammers its plastic guides. Guides crack, debris ends up in the oil pan, and eventually the chain jumps timing. Caught at the rattle stage, it's a timing set. Caught at the no-start stage, it's potentially valves and a much bigger bill. There's no version where waiting makes it cheaper.
It's the number-one mechanical item to check. PI Utilities rack up massive idle hours, hard on tensioners and chains, that the odometer doesn't show. If yours rattles cold or has correlation codes, the timing set is due. If it's quiet, a proactive inspection tells you how much life is left.
Because the tensioner collapsed for a reason and the chain has been running loose on worn guides. Put a new tensioner against a stretched chain and cracked guides and the noise comes back fast. The teardown is the expensive part, fill it with a complete set once and the job lasts.
No. Timing Chain Tensioner & Complete Timing Set Replacement 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 $1,700–$2,300 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 $1,700–$2,300 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 $1,700–$2,300. 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