Silverado 2008

6.0L V8 VIN Y Auto 13

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Trouble Code: P0300



Engine Misfire Detected

Possible Causes:



130 misfire events have occurred.
 

Trouble Code: P0301



Cylinder 1 Misfire Detected

Possible Causes:



DTC P0301, P0302, P0303, P0304, P0305, P0306, P0307, or P0308
 
The ECM is detecting a crankshaft speed change indicating a single cylinder misfire is occurring that exceeds mandated emission level standards or is at catalytic converter damaging levels.
 

Trouble Code: P0301



Cylinder 1 Misfire Detected

Possible Causes:



The ECM is detecting a crankshaft rotation speed variation indicating a misfire sufficient to cause emission or catalytic converter damaging levels to exceed mandated standards.
 

Trouble Code: P0301



Cylinder 1 Misfire Detected

Possible Causes:



130 misfire events have occurred.
 

Trouble Code: P0302



Cylinder 2 Misfire Detected

Possible Causes:



DTC P0301, P0302, P0303, P0304, P0305, P0306, P0307, or P0308
 
The ECM is detecting a crankshaft speed change indicating a single cylinder misfire is occurring that exceeds mandated emission level standards or is at catalytic converter damaging levels.
 

Trouble Code: P0302



Cylinder 2 Misfire Detected

Possible Causes:



The ECM is detecting a crankshaft rotation speed variation indicating a misfire sufficient to cause emission or catalytic converter damaging levels to exceed mandated standards.
 

Trouble Code: P0302



Cylinder 2 Misfire Detected

Possible Causes:



130 misfire events have occurred.
 

Trouble Code: P0303



Cylinder 3 Misfire Detected

Possible Causes:



DTC P0301, P0302, P0303, P0304, P0305, P0306, P0307, or P0308
 
The ECM is detecting a crankshaft speed change indicating a single cylinder misfire is occurring that exceeds mandated emission level standards or is at catalytic converter damaging levels.
 

Trouble Code: P0303



Cylinder 3 Misfire Detected

Possible Causes:



The ECM is detecting a crankshaft rotation speed variation indicating a misfire sufficient to cause emission or catalytic converter damaging levels to exceed mandated standards.
 

Trouble Code: P0303



Cylinder 3 Misfire Detected

Possible Causes:



130 misfire events have occurred.
 

Trouble Code: P0304



Cylinder 4 Misfire Detected

Possible Causes:



DTC P0301, P0302, P0303, P0304, P0305, P0306, P0307, or P0308
 
The ECM is detecting a crankshaft speed change indicating a single cylinder misfire is occurring that exceeds mandated emission level standards or is at catalytic converter damaging levels.
 

Trouble Code: P0304



Cylinder 4 Misfire Detected

Possible Causes:



The ECM is detecting a crankshaft rotation speed variation indicating a misfire sufficient to cause emission or catalytic converter damaging levels to exceed mandated standards.
 

Trouble Code: P0304



Cylinder 4 Misfire Detected

Possible Causes:



130 misfire events have occurred.
 

Trouble Code: P0305



Cylinder 5 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCV system
 
Base engine mechanical fault that affects only Cylinder 5
 
Fuel delivery component fault that affects only Cylinder 5 (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil, plug) that affects only Cylinder 5
 

Trouble Code: P0306



Cylinder 6 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCV system
 
Base engine mechanical fault that affects only Cylinder 6
 
Fuel delivery component fault that affects only Cylinder 6 (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil, plug) that affects only Cylinder 6
 

Trouble Code: P0307



Cylinder 7 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCV system
 
Base engine mechanical fault that affects only Cylinder 7
 
Fuel delivery component fault that affects only Cylinder 7 (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil, plug) that affects only Cylinder 7
 

Trouble Code: P0308



Cylinder 8 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCV system
 
Base engine mechanical fault that affects only Cylinder 8
 
Fuel delivery component fault that affects only Cylinder 8 (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil, plug) that affects only Cylinder 8
 

Trouble Code: P0313



Misfire Detected With Low Fuel Level

Possible Causes:



Damaged reluctor wheel
 
Damaged accessory drive component or belt
 
Certain rough road conditions
 
Variable thickness brake rotors
 
Tire or wheel that is out of round or out of balance
 
Engine vacuum leaks
 
Fuel pressure that is too low or too high
 
Contaminated fuel
 
Restricted exhaust system
 

Trouble Code: P0324



Knock Sensor (KS) Module Performance

Possible Causes:



P0324
 
The ECM has detected an internal circuitry fault.
 

Trouble Code: P0324



Knock Sensor (KS) Module Performance

Possible Causes:



P0324
 
The ECM has detected an internal circuitry fault for greater than 5 s.
 

Trouble Code: P0325



Knock Sensor (KS) Circuit Bank 1

Possible Causes:



P0325 or P0330
 
The KS signal circuits are open or shorted together for 5 seconds.
 

Trouble Code: P0325



Knock Sensor (KS) Circuit Bank 1

Possible Causes:



P0325 and P0330
 
The KS signal circuits are open or shorted together for greater than 5 s.
 

Trouble Code: P0326



Knock Sensor (KS) Performance

Possible Causes:



P0326
 
The KS signal indicates an engine knock is present.
 
The ECM has commanded the spark retard to a value which is more than the calibrated valve, for a specific engine load and speed.
 
The above conditions exist for more than 5 seconds.
 

Trouble Code: P0326



Knock Sensor (KS) Performance

Possible Causes:



P0326
 
The KS signal indicates an engine knock is present.
 
The ECM has commanded the spark retard to a value, which is more than the calibrated value, for a specific engine load and speed.
 
The above conditions exist for more greater than 5 s.
 

Trouble Code: P0327



Knock Sensor (KS) Circuit Low Frequency Bank 1

Possible Causes:



P0327, P0328, P0332, and P0333
 
The KS signal circuits are shorted to voltage or ground.
 

Trouble Code: P0327



Knock Sensor (KS) Circuit Low Voltage Bank 1

Possible Causes:



P0327, P0328, P0332, and P0333
 
The KS signal circuits are shorted to voltage or ground.
 
The above conditions exist for greater than 5 s.
 

Trouble Code: P0328



Knock Sensor (KS) Circuit High Frequency Bank 1

Possible Causes:



P0327, P0328, P0332, and P0333
 
The KS signal circuits are shorted to voltage or ground.
 

Trouble Code: P0328



Knock Sensor (KS) Circuit High Voltage Bank 1

Possible Causes:



P0327, P0328, P0332, and P0333
 
The KS signal circuits are shorted to voltage or ground.
 
The above conditions exist for greater than 5 s.
 

Trouble Code: P0330



Knock Sensor (KS) Circuit Bank 2

Possible Causes:



P0325 or P0330
 
The KS signal circuits are open or shorted together for 5 seconds.
 

Trouble Code: P0330



Knock Sensor (KS) Circuit Bank 2

Possible Causes:



P0325 and P0330
 
The KS signal circuits are open or shorted together for greater than 5 s.
 

Trouble Code: P0332



Knock Sensor (KS) Circuit Low Frequency Bank 2

Possible Causes:



P0327, P0328, P0332, and P0333
 
The KS signal circuits are shorted to voltage or ground.
 

Trouble Code: P0332



Knock Sensor (KS) Circuit Low Voltage Bank 2

Possible Causes:



P0327, P0328, P0332, and P0333
 
The KS signal circuits are shorted to voltage or ground.
 
The above conditions exist for greater than 5 s.
 

Trouble Code: P0333



Knock Sensor (KS) Circuit High Frequency Bank 2

Possible Causes:



P0327, P0328, P0332, and P0333
 
The KS signal circuits are shorted to voltage or ground.
 

Trouble Code: P0333



Knock Sensor (KS) Circuit High Voltage Bank 2

Possible Causes:



P0327, P0328, P0332, and P0333
 
The KS signal circuits are shorted to voltage or ground.
 
The above conditions exist for greater than 5 s.
 

Trouble Code: P0335



Crankshaft Position (CKP) Sensor Circuit

Possible Causes:



Important: The ECM detects engine movement by sensing the airflow through the MAF sensor, when airflow is greater than 3 grams per second, or by sensing camshaft position (CMP) sensor pulses.
 
The ECM detects that the starter is commanded on and the engine has been cranking for more than 3 seconds without a CKP sensor pulse.
 
The ECM detects that the engine is running, but has not received a CKP sensor pulse for 2 of 10 engine cycles.
 

Trouble Code: P0335



Crankshaft Position (CKP) Sensor Circuit

Possible Causes:



Important: The ECM detects engine movement by sensing the airflow through the MAF sensor when airflow is greater than 3 grams per second, or by sensing CMP sensor pulses.
 
The ECM detects that the starter is commanded on and the engine has been cranking for more than 3 seconds without a CKP sensor pulse.
 
The ECM detects that the engine is running, but has not received a CKP sensor pulse for 2 of 10 engine cycles.
 

Trouble Code: P0335



Crankshaft Position (CKP) Sensor Circuit

Possible Causes:



The ECM determines no signal from the CKP sensor.
 

Trouble Code: P0336



Crankshaft Position (CKP) Sensor Performance

Possible Causes:



Important: The ECM detects engine movement by sensing the airflow through the MAF sensor, when airflow is greater than 3 grams per second, or by sensing camshaft position (CMP) sensor pulses.
 
The ECM detects that the engine is running, but receives less than 55 or more than 61 CKP sensor pulses, during each engine revolution, for 8 of 10 engine revolutions.
 
The ECM detects that the engine is running, but more than 25 crankshaft resyncs have occurred within 25 seconds.
 

Trouble Code: P0336



Crankshaft Position (CKP) Sensor Performance

Possible Causes:



Important: The ECM detects engine movement by sensing the airflow through the MAF sensor, when airflow is greater than 3 grams per second, or by sensing CMP sensor pulses.
 
The ECM detects that the engine is running, but receives less than 55 or more than 61 CKP sensor pulses, during each engine revolution, for 8 of 10 engine revolutions.
 
The ECM detects that the engine is running, but more than 25 crankshaft resyncs have occurred within 25 seconds.
 

Trouble Code: P0336



Crankshaft Position (CKP) Sensor Performance

Possible Causes:



The ECM detects CKP sensor pulses that are more than 0 but not equal to 57 teeth, and a sync gap per one crankshaft revolution.
 

 
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