Possible causes – Faulty fuel pump– Blocked fuel filter– Faulty fuel pressure solenoid– Faulty Fuel injector Tech description There is a factory service bulletin for the P0093 Code 2001-2004 GMC Sierra2003-2004 GMC Topkick C4500/C5500 SeriesGMC Factor Service Bulletin OBDII Code P0093 or P1093 2001-2004 GMC Sierra2003-2004 GMC Topkick C4500/C5500 SeriesGMC Factor Service Bulletin OBDII Code…
Tag: GMC
P0453 GMC Fuel Tank Pressure Sensor Circuit High Voltage
Possible causes – Faulty Fuel Tank Pressure Sensor– Fuel Tank Pressure Sensor harness is open or shorted– Fuel Tank Pressure Sensor circuit poor electrical connection Tech description On most GMC vehicles the sensor is on top of the fuel tank. When is the obd code mean? An excessively high voltage from the sensor is sent…
P0452 GMC Fuel Tank Pressure Sensor Circuit Low Voltage
Possible causes – Faulty Fuel Tank Pressure Sensor– Fuel Tank Pressure Sensor harness is open or shorted– Fuel Tank Pressure Sensor circuit poor electrical connection Tech description On most GMC vehicles the sensor is on top of the fuel tank. When is the obd code mean? An excessively low voltage from the sensor is sent…
P0670 GMC Glow Plug Control Module Circuit Fault
Possible causes – Faulty Glow Plug Control Module (GPCM)– GPCM harness is open or shorted– GPCM circuit poor electrical connection– Faulty Engine Control Module (ECM) When is the obd code mean? The Engine Control Module (ECM) has detected a fault on the Glow Plug Control Module (GPCM) control circuit Symptoms – Engine Light ON (or…
P0030 GMC HO2S Heater Control Circuit Bank 1 Sensor 1
Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit open shorted to ground– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit poor electrical connection– Faulty Powertrain Control Module (PCM) Tech description…
P0135 GMC HO2S Heater Performance Bank 1 Sensor 1
Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit open shorted to ground– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit poor electrical connection– Faulty Powertrain Control Module (PCM) Tech description The…
P0031 GMC HO2S11 Heater Control Circuit Low Voltage
Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 harness is open shorted to ground– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit poor electrical connection– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse– Faulty Powertrain Control Module (PCM) Tech description…
P0032 GMC HO2S11 Heater Control Circuit High Voltage
Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 harness is open shorted to ground– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit poor electrical connection– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse– Faulty Powertrain Control Module (PCM) Tech description…
P0141 GMC O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 2
Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit fuse– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit open shorted to ground– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit poor electrical connection– Faulty Powertrain Control Module (PCM) Tech description The…
P0036 GMC HO2S Heater Control Circuit Bank 1 Sensor 2
Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 fuse– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 harness is open or shorted– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit poor electrical connection– Faulty Powertrain Control Module (PCM) Tech description The code…