Home Tips & Tricks 2002 Chevrolet Silverado 1500 engine runs, but lacks power when driving

2002 Chevrolet Silverado 1500 engine runs, but lacks power when driving

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Download Vehicle Application: Customer Concern: Tests/Procedures: Potential Causes: Diagnostic Codes: 2002 GAS, 2003 GAS, Chevrolet Silverado 1500 4.8L, Vin V, Eng Cfg V8, USA/Canada Chevrolet Silverado 1500 4.8L, Vin V, Eng Cfg V8 The engine runs, but lacks power when driving. Has codes P0101 and P0300. Scanner shows misfires all on the same side of the engine. 1. Check the catalytic converter, on the “suspect” bank of the engine, for a restricted (plugged) exhaust system to that side of the engine. 2. Disconnect both front O2 sensors, re-set the fuel trims and see if the problem goes away. 3. If gone with the O2 sensors disconnected, then swap the sensors side to side and see if the problem follows the O2 sensor. Plugged Exhaust System Oxygen Sensor P0101, P0300 2003 Chevrolet Tahoe 4.8L, GAS, Vin V 2003 Chevrolet Tahoe 5.3L, FLEX, Vin Z