2016 Chevrolet Silverado 1500 (K2XX) · Known Issue
2016 Chevrolet Silverado 1500 AFM Lifter Failure (5.3 & 6.2 V8): What It Really Costs to Fix
Quick answer: 2016 Chevrolet Silverado 1500 afm lifter failure (5.3 & 6.2 v8) typically costs $2,200 to $4,500 at an independent shop, depending on which component failed.
Applies to: 5.3L and 6.2L V8 only. Other versions of the 2016 Chevrolet Silverado 1500 do not have this problem.
What the Issue Is
The 5.3 and 6.2 EcoTec3 V8s in these trucks both use Active Fuel Management, cylinder deactivation that shuts down four cylinders at light load. It works through special collapsible lifters on the cylinders it switches off, and those lifters are the weak point: one collapses or sticks, the cam lobe under it starts to wear, and a smooth V8 turns into a ticking, misfiring engine, sometimes within days. Only cylinders 1, 4, 6 and 7 carry the deactivating lifters, so an AFM lifter failure shows up as a tick plus a misfire on one of those four.
The repair costs far more than the part. The lifters sit under the cylinder heads, so even one failed lifter means taking the heads off, and a lifter that wore its cam lobe adds a camshaft to the job. Because the labor to reach one lifter is the same as for all sixteen, and the others share the design, replacing the full set is the sensible repair, and it is also the moment to decide about an AFM disabler or a full AFM delete.
The failure is on the record. GM's repair bulletin for AFM lifters, 15-06-01-002, has been revised many times through 2023 and includes 2015 to 2018 Silverado and Sierra trucks with the 6.2. A class action filed in 2021, Harrison v. General Motors in Michigan federal court, is brought for owners of 2014 to 2021 GM vehicles with 5.3, 6.0 and 6.2 V8s and alleges the lifters can collapse, stick or fail. GM has not recalled the trucks for it. On a used truck the test is mostly by ear: a warm 5.3 or 6.2 should idle smooth and quiet, and a tick plus a misfire code means a heads-off repair until a shop proves otherwise.
Symptoms to Watch For
- 1.Sudden ticking or knocking from the top of the engine
- 2.Single-cylinder misfire code (P0301 to P0308) on one of the AFM cylinders (1, 4, 6 or 7)
- 3.Check-engine light with rough running or reduced power
- 4.Shudder or drone in four-cylinder mode at cruise before outright failure
- 5.Metal debris in the oil filter at changes (cam lobe wear)
Real Repair Costs
Independent-shop pricing for heads-off replacement of all sixteen lifters with updated parts, plus a camshaft where a lobe wore. Dealer quotes commonly run $4,000 to $6,000. A disabler stops the deactivation cycling afterward but does not repair a lifter that has already failed.
| Repair | Typical Cost (installed) |
|---|---|
| All 16 lifters, updated parts, installed | $2,200-$3,500 |
| With camshaft replacement (worn lobe) | $3,200-$4,500 |
| AFM disabler device (prevention)keeps the engine in V8 mode | $100-$250 |
Major issue: budget for it. Ranges are US independent-shop estimates with quality parts. Use them as negotiation grounding, not a quote.
Mechanic's Tip: Spot It Before You Buy
Listen before you look: hood up, engine idling warm, and treat any rhythmic tick from the top of a 5.3 or 6.2 as a lifter until a mechanic proves otherwise. Plug in a scan tool even if the light is off. A pending misfire code can be stored before the light comes on, and on these model years a permanent code survives a reset until the engine passes that self-test again. Clearing codes also erases freeze-frame data and resets the readiness monitors, so several monitors reading "not ready" on a truck that has been driven normally means someone cleared it recently. On the drive, hold 55 to 65 mph on light throttle and feel for drone or shudder in four-cylinder mode, and ask whether a disabler or delete was installed. A documented lifter job with updated parts is the fixed version of this truck and worth paying for.
The Bigger Ownership Picture
Beyond this specific issue, budget roughly $1,300-$1,900 per year for scheduled maintenance and repairs on a 2016 Chevrolet Silverado 1500. That is a typical US range from Avturo's ownership-cost table, an estimate rather than a quote, and it excludes insurance, fuel, and financing.
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Frequently Asked Questions
What does the AFM lifter repair cost on a Silverado?▼
Heads-off replacement of all sixteen lifters with updated parts runs about $2,200 to $3,500 at independent shops, and $3,200 to $4,500 when a worn cam lobe means a new camshaft too. Dealers commonly quote $4,000 to $6,000. Replacing only the failed lifter saves little, because the labor to reach it is the same and the others share the design.
Can I prevent AFM lifter failure?▼
The common hedge is a $100 to $250 plug-in disabler that keeps the engine in V8 mode, so the deactivating lifters stop switching. It plugs into the diagnostic port and can be removed. Regular oil changes with the specified oil matter too, since these lifters depend on clean oil at the right pressure. Neither is a guarantee.
Can I drive with a collapsed lifter?▼
Briefly and gently, to a shop, not as a plan. A collapsed lifter causes a misfire that sends unburned fuel into the catalytic converters, and a stuck one keeps wearing its cam lobe with every mile, which can turn a lifter job into a camshaft job. Parking the truck until it is repaired is the cheaper choice.
Which GM trucks share this problem?▼
The Harrison class action, filed in 2021, is brought for owners of 2014 to 2021 GM vehicles with 5.3, 6.0 and 6.2 V8s, which takes in the Silverado and Sierra 1500 and GM's full-size SUVs of those years. The redesigned 2019 and later trucks moved most V8s to Dynamic Fuel Management, which puts deactivating lifters on all sixteen valves, so the same screening applies to them.
Sources
The facts on this page were last checked against these documents on October 10, 2026. Programs and their coverage end; check the car's VIN with a dealer for what still applies.
- Service bulletin: GM bulletin 15-06-01-002, AFM valve lifter repair (2016 revision, NHTSA copy) (static.nhtsa.gov)
- Service bulletin: GM bulletin 15-06-01-002, 2023 revision covering 2015-2018 trucks with the 6.2L L86 (NHTSA copy) (static.nhtsa.gov)
- Court or settlement record: Harrison et al. v. General Motors LLC, E.D. Mich. No. 21-cv-12927 (class counsel case page) (bergermontague.com)
- Owner reports: GM Authority: GM V8 valve lifter lawsuit (December 2021) (gmauthority.com)
- Repair cost estimate: Go-Parts: GMC Sierra 1500 valve lifter replacement cost guide (go-parts.com)
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