2007 Chevrolet Impala
2007 Chevrolet Impala
Overview
The 2007 Chevrolet Impala, a popular mid-size sedan, offered a range of powertrain options and a comfortable ride, making it a common choice for families and commuters. While generally considered a reliable vehicle for its era, like any mass-produced car, it has certain areas that have seen more frequent reports of issues. This analysis focuses on documented technical reliability concerns beyond routine maintenance, examining common problems reported by owners and technicians across its various configurations. Understanding these potential weak points can help current and prospective owners make informed decisions regarding maintenance and repairs.
Engine
3.5L V6 (LZ4)
Intake Manifold Gasket Leaks
- Symptoms: Coolant leaks, engine misfires, rough idle, overheating.
- Solution: Replacement of the intake manifold gaskets.
- Cost: $300 - $600
Oil Pressure Sensor Failures
- Symptoms: Illuminated oil pressure warning light, inaccurate gauge readings.
- Solution: Replacement of the oil pressure sensor.
- Cost: $100 - $250
3.9L V6 (LZ9)
Intake Manifold Gasket Leaks
- Symptoms: Coolant leaks, engine misfires, rough idle, overheating.
- Solution: Replacement of the intake manifold gaskets.
- Cost: $300 - $600
Variable Valve Timing (VVT) Actuator Issues
- Symptoms: Rattling noise on startup, rough idle, check engine light.
- Solution: Replacement of the VVT actuator and potentially related components.
- Cost: $500 - $1000
5.3L V8 (LS4)
Active Fuel Management (AFM) System Issues
- Symptoms: Engine misfires, rough idle, oil consumption, check engine light.
- Solution: Deactivation of AFM or replacement of lifters and related components.
- Cost: $1500 - $3000+
Transmission
4-Speed Automatic (4T65-E)
Torque Converter Shudder
- Symptoms: Vibration or shuddering during acceleration, especially at lower speeds.
- Solution: Transmission fluid flush and filter replacement, or torque converter replacement.
- Cost: $400 - $1200
Solenoid Issues
- Symptoms: Harsh shifting, delayed engagement, transmission warning light.
- Solution: Replacement of faulty shift solenoids.
- Cost: $300 - $700
Suspension
Standard Chassis
Worn Ball Joints and Control Arm Bushings
- Symptoms: Clunking noises over bumps, poor handling, uneven tire wear.
- Solution: Replacement of worn ball joints and control arm bushings.
- Cost: $400 - $800
Strut Mount Bearing Failure
- Symptoms: Popping or creaking noise when turning the steering wheel.
- Solution: Replacement of the strut mount bearings.
- Cost: $200 - $400
Electrical
Body Control Module (BCM)
BCM Malfunctions
- Symptoms: Intermittent electrical issues, power window problems, interior lighting issues, key fob not working.
- Solution: Reprogramming or replacement of the Body Control Module.
- Cost: $500 - $1000
Ignition Switch
Faulty Ignition Switch
- Symptoms: Intermittent starting issues, engine stalling, dashboard lights flickering.
- Solution: Replacement of the ignition switch.
- Cost: $150 - $300
Exterior
No widespread issues reported.
No major issues reported for this configuration.
Interior
No widespread issues reported.
No major issues reported for this configuration.
Summary Verdict
The 2007 Chevrolet Impala generally presents as a reasonably reliable vehicle, particularly with its V6 engines. However, common issues tend to revolve around the intake manifold gaskets on V6 models, potential torque converter shudder in the automatic transmissions, and some electrical gremlins related to the BCM and ignition switch. The V8’s Active Fuel Management system can also be a source of concern. Suspension components like ball joints and bushings are also noted for wear. While not indicative of a fundamentally flawed vehicle, these are the most frequently cited technical problems that owners should be aware of for potential maintenance and repair planning.