6.2L V8 (L87)Outside official recall window
2020 GMC Sierra 1500 engine failures
Owners have reported 1 6.2L (L87) engine failure on the 2020 GMC Sierra 1500. Here's what the data shows, and how to add yours.
Failures reported
1
Median miles at failure
124,002 mi
Engines replaced
0
Warranty claims denied
0
Most-reported symptoms
Engine knockingTicking / tapping noiseSudden loss of powerMetal shavings in oil
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Recent Sierra 1500 reports
Note: model year 2020is outside GM's official 2021–2024 recall window. Owner-reported failures here are tracked independently to show the problem's real scope.