L87 RegistryGM 6.2L V8 Failures
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Symptoms 5 min read

Symptoms of L87 engine bearing failure to watch for

The early warning signs owners report before a 6.2L L87 engine fails, and which ones mean you should stop driving immediately.

Early warning signs

Many owners report symptoms in the days or weeks before total failure:

  • Knocking or tapping that's loudest at cold start or under acceleration
  • Ticking from the top or bottom end of the engine
  • Rough idle or misfire codes
  • Check-engine or low oil pressure warning lights
  • Metal shavings found in the oil during a service

Stop-driving symptoms

If you experience any of these, pull over safely and have the vehicle towed, continuing to drive can turn a repairable problem into a destroyed engine:

  • A sudden loud knock or bang
  • Loss of power while driving
  • Stalling that won't restart
  • A low oil pressure light that stays on

Why it happens

The recall traces the problem to bearings that may have been manufactured out of spec. As they wear, the rotating assembly loses tolerance until a rod bearing fails, often with little warning.

Document everything: dates, sounds, dashboard lights, and what the dealer says at each visit.

Know where you stand

The free 2-minute checker explains your warranty and lemon-law options. Talking to an attorney is optional and only if you want it.