The Chevy Impala has been in production for a long time. In this article, we review the most common Chevy Impala problems of the 9th generation, years 2006 to 2016.
Top 5 Problems on the 9th Gen Chevy Impala (2006 to 2016)
1. EVAP Purge Solenoid Valve Failure
Symptoms of an EVAP Purge Solenoid Valve
- Check engine light for code P0449 or P0455
Causes of EVAP Purge Solenoid Valve
The EVAP purge solenoid valve is part of the emissions system and keeps fuel vapors from entering the atmosphere. Sometimes the purge solenoid valve can remain stuck open or leak and trigger a check engine light.
How to Fix a EVAP Purge Solenoid Valve
Disconnect the electrical connector, disconnect the fuel line, and remove the bolt from the EGR, and remove the EGR.
Before replacing any parts, check the gas cap for tightness and wearing and tearing on the gas cap gasket.
2. Water Pump Failure
Symptoms of Water Pump Problems on the 2006 to 2016 Chevy Impala
- Coolant dripping
- Engine overheats
Causes of Water Pump Problems
The water pump tends to fail on the 2006 to 2016 Chevy Impala.
How to Fix Water Pump Problems
Check the water pump located on the front of the engine on the passenger side. If coolant is leaking in that area, the water pump probably needs to be replaced.
3. Power Steering Rack
Symptoms of Power Steering Rack
- Whining when turning the steering wheel
Causes of a Bad Power Steering Rack
Power steering rack is located back behind the cradle. The fluid tends to leak into the boots, so there may be no power steering fluid on the ground. The power steering pump may whine for a little as the steering wheel is turned, and there may be chattering near the rack’s location. The power steering fluid may also leak.
How to Fix a Bad Power Steering Rack
- The only way to fix this issue is to replace the entire steering rack since the problem lies with a gear in the rack.
- If the power steering pump is leaking, that also needs to be replaced.
4. Accelerator Position Pedal Sensor
Symptoms of a Bad Accelerator Position Pedal Sensor
- Engine reduced power light is on on the dash
- Vehicle may be hard to accelerate
- Check engine light for code P2138
Causes of a Bad Accelerator Position Pedal Sensor
Since the accelerator position pedal (APP) sensor tends to malfunction, it can have trouble sensing the position of the accelerator pedal, causing acceleration problems.
How to Fix a Bad Accelerator Position Pedal Sensor
Replacing the APP sensor tends to clear up the symptoms. Before replacing the accelerator pedal sensor check the electrical connector for discoloring or damage and check the wires for tearing and wear.
5. Seatbelt Pretensioners
Symptoms of Bad Seatbelt Pretensioners
- Check engine light for the pretensioner codes B001a and B001b
Causes of a Bad Seatbelt Pretensioner
Seatbelt pretensioners are located at the base of the seatbelt. They are apart of the seat belt system. If the car is in an accident, an explosive charge is sent to the bottom of the seatbelt for stronger restrainment.
How to Fix a Bad Seatbelt Pretensioner
Check the condition of the pretensioner. The connector is sometimes the issue but it’s usually the tensioner that needs replacing.
Shop 9th Gen Chevy Impala Parts
9th Generation Chevrolet Model Years
- 2006 Chevy Impala
- 2007 Chevy Impala
- 2008 Chevy Impala
- 2009 Chevy Impala
- 2010 Chevy Impala
- 2011 Chevy Impala
- 2012 Chevy Impala
- 2013 Chevy Impala
- 2014 Chevy Impala
- 2015 Chevy Impala
- 2016 Chevy Impala
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