Car Problem Reports

GMC Sonoma Check Engine Light Due to Oxygen Sensor Failure

 
GMC Sonoma Problem
3 Reports
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Model Years Affected: 1991, 1992, 1993

Exhaust & Emissions Affected: 2.5L 4 Cylinder

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The oxygen sensor can fail causing Check Engine Light illumination and the engine to run rich (burn more fuel than normal).

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