๐จ The Verdict
Owners are reporting catastrophic engine failure between 20,000 and 80,000 miles. The complaints allege defective valvetrain components, oil pump deficiencies, and inadequate manufacturing tolerances on the L87 that cause lifters to fail, spin bearings, and destroy the engine. Out of pocket replacement costs are running $9,000 to $14,000 when GM declines warranty coverage.
If your truck is ticking, knocking, or throwing a P0300 random misfire code, treat it as urgent. Continuing to drive a failing lifter is the single fastest way to turn a $3,000 head repair into a full engine swap.
๐ The Numbers
Here is what the public filings, NHTSA complaints, and owner reports look like as of June 2026:
| Data point | Reported value |
|---|---|
| Affected vehicles (est.) | 700,000+ trucks and SUVs |
| Engine | 6.2L L87 V8 (gasoline, AFM/DFM) |
| Typical failure mileage | 22,000 to 78,000 miles |
| Out of pocket engine cost | $9,200 to $14,500 |
| NHTSA complaints filed | 1,400+ and rising |
| GM recall number | N242467490 (2024-2025) |
| Lead case venue | U.S. District Court, Eastern District of Michigan |
The recall itself is limited to inspection and, if metal is found in the oil, engine replacement. Many owners report dealers cleared their truck only to have the engine fail months later. That gap is exactly what the class action is targeting.
โ When the Class Action Helps You
The lawsuit makes sense to track and claim if you can answer yes to most of these:
- You own or leased a 2019-2024 GM truck or SUV with the 6.2L L87 engine.
- Your VIN was included in the NHTSA recall notice or the dealer confirmed inclusion.
- You experienced a ticking or knocking noise, sudden stall, or full engine failure.
- You paid out of pocket for engine repair or replacement because GM denied warranty.
- Your trade-in or resale value dropped after the recall was announced.
- You can produce dealer records, repair invoices, and oil change receipts.
When it does not help
- You have a 5.3L L84, not the 6.2L L87. The 5.3 has separate complaints but is not in this filing.
- Your engine failed because of skipped oil changes or aftermarket tuning. Both are common GM defenses.
- You already accepted a final settlement and signed a release with GM.
โ ๏ธ Common Mistakes Owners Make
- Going to an independent shop first. The class action and warranty extension both require dealer documentation. Always open a case at a GM dealer before any other repair work.
- Trading the truck in. If you trade before the settlement is finalized, you may lose standing. Some plaintiffs are arguing diminished value claims, but those are harder to prove without ownership at the time of notice.
- Skipping the oil sample test. The recall requires a dealer-pulled oil sample. If the dealer waves you off, insist in writing. That sample is your evidence.
- Paying cash and not asking for itemized receipts. Settlement claim forms ask for line-item parts and labor. A lump-sum receipt slows reimbursement by months.
- Ignoring early warning codes. A P0017 cam correlation or P0521 oil pressure code months before failure is often the first sign. Save the scan log.
๐งญ Decision Framework
Use this quick read to decide what to do today:
| Your situation | What to do this week |
|---|---|
| Truck runs fine, in recall | Book the dealer oil sample inspection. Save the paperwork. |
| Hearing a tick or knock | Stop driving. Schedule dealer diagnosis. Record audio. |
| Engine already failed, paid out of pocket | Gather all invoices. Register with class counsel. Do not sign any GM release. |
| GM offered partial reimbursement | Talk to a consumer attorney before accepting. Class payouts may exceed it. |
| Lease ending soon | Document failure history. You may have lemon law leverage on top of the class. |
If you are still inside the 5-year/60,000-mile powertrain warranty, force the warranty claim first. The class action is a backstop for owners GM has turned away or owners stuck with diminished value.
โ Frequently Asked Questions
๐ Summary
The GM 6.2 lifter failure class action is one of the largest active truck and SUV cases in the country, covering an estimated 700,000-plus L87 powered vehicles. The recall handled some inspections, but it did not refund the owners who already paid five-figure repair bills, and it did not address diminished resale value. That is where the class action steps in.
Three things to do this week if you are an affected owner: confirm your VIN is in the recall, get a dealer oil sample on record, and store every receipt connected to your engine in one folder. If your truck has already failed, do not sign anything GM puts in front of you without talking to consumer counsel. Want a faster read on whether your symptoms match a real lifter failure or something cheaper? Run a free AmpAuto diagnosis for your specific year, make, and model.