Shops quote $3,800–$4,500 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 original timing chain tensioner on the 2009–2016 EA888 holds chain tension with oil pressure, and its internal check valve lets that pressure bleed off while the car sits overnight. On a cold start, there's a moment where the chain runs slack before oil pressure rebuilds. That's the one-to-four-second rattle you hear. Every one of those starts hammers the plastic chain guides, which crack and shed pieces over time.
Once the guides crack and the chain stretches, slack builds to the point where the chain can skip a tooth on the cam sprockets. The engine computer notices the cam and crank falling out of sync and throws P0016, P0017 or P0341. On this interference engine, a skipped chain means pistons meet valves, bent valves at minimum, often a wrecked head, sometimes pistons too.
The fix is the complete kit: new chain, new guides, and the revised tensioner design that holds pressure overnight. Replacing just the tensioner on a stretched chain with cracked guides is a half-repair that comes back. Done properly with the updated parts, the problem is solved permanently, the later tensioner design simply doesn't bleed down.
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Timing Chain & Tensioner 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 $3,800–$4,500 quote. Both are real, both are flat-priced, and both are worth more than a bad yes.
Before you spend $3,800–$4,500, 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 $3,800–$4,500 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 $3,800–$4,500 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 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.
The rattle is the warning phase. Guides keep cracking, the chain keeps stretching, and the failure point is a skipped tooth, which on this interference engine means bent valves and a four-figure jump in repair cost, or a full engine if it lets go at speed on the 401. There's no schedule for when it skips; some rattle for months, some let go in weeks. The math strongly favours doing the chain kit while it's still just a noise.
On a low-mileage engine caught very early, sometimes. But by the time the rattle is consistent, the guides are usually cracked and the chain stretched, and a new tensioner can't fix either. We inspect what comes off and tell you straight, but the complete kit is the repair that doesn't come back.
Honestly: unknown. Some engines rattle for months before skipping, others go quickly. What's certain is that every cold start is wear on cracked guides, and the failure mode is sudden and expensive. If it's rattling and showing P0016/P0017, treat it as a now-job, and avoid cold-start hard driving until it's done.
No. Timing Chain & Tensioner 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 $3,800–$4,500 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 $3,800–$4,500 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 $3,800–$4,500. 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