Turbo/Supercharger Bypass Valve Control Circuit
2000-2005 Chevrolet Impala 3.4L V6
Description
The turbo bypass valve (diverter valve/blow-off valve) control circuit has a malfunction. The bypass valve recirculates pressurized air during throttle closure.
Symptoms
- Check Engine Light
- Compressor surge on deceleration
- Flutter noise from turbo
- Reduced boost response after throttle lift
- Check Engine Light after spirited driving
Common Causes
- Faulty bypass valve solenoid
- Torn bypass valve diaphragm
- Wiring issue to solenoid
- Vacuum line leak
- PCM driver failure
Diagnostic Steps
- Test bypass valve solenoid resistance
- Inspect vacuum lines to bypass valve
- Command solenoid with scan tool
- Check valve diaphragm for tears
- Inspect wiring and connector
Repair Notes
Replace bypass valve or solenoid. Inspect vacuum hoses for cracks.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P3008 on Other Vehicles
Chevrolet Astro
1995-2005 4.3L V6 Vortec
Chevrolet Avalanche
2002-2006 5.3L V8 Vortec
Chevrolet Avalanche
2002-2006 8.1L V8 Vortec
Chevrolet Avalanche
2007-2013 5.3L V8 Vortec
Chevrolet Avalanche
2007-2013 6.0L V8 Vortec
Chevrolet Aveo
2012-2018 1.6L I4
Chevrolet Beat
2018-2021 1.2L I4
Chevrolet Blazer
1995-2005 4.3L V6 Vortec
Common Questions
What does code P3008 mean on a 2000-2005 Chevrolet Impala?
P3008 stands for "Turbo/Supercharger Bypass Valve Control Circuit". The turbo bypass valve (diverter valve/blow-off valve) control circuit has a malfunction. The bypass valve recirculates pressurized air during throttle closure.
What are the symptoms of P3008 on a Chevrolet Impala?
Common symptoms of P3008 include: Check Engine Light, Compressor surge on deceleration, Flutter noise from turbo, Reduced boost response after throttle lift, Check Engine Light after spirited driving.
What causes P3008 on a 2000-2005 Chevrolet Impala?
Common causes of P3008 include: Faulty bypass valve solenoid, Torn bypass valve diaphragm, Wiring issue to solenoid, Vacuum line leak, PCM driver failure.