2009 Chevrolet Impala
2009 Chevrolet Impala
Overview
The 2009 Chevrolet Impala, a mid-size sedan, offered a range of powertrain options and a comfortable ride, making it a popular choice for families and commuters. While generally considered a reliable vehicle for its era, like any car, it has specific areas where owners have reported issues. This analysis focuses on common technical problems beyond routine maintenance, providing insights into potential repair needs for the 2009 model year. 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 Leak
- Symptoms: Coolant leaks, engine overheating, sweet smell from engine bay.
- Solution: Replacement of the intake manifold gaskets.
- Cost: $300 - $600
Oil Cooler Line Leak
- Symptoms: Oil leaks under the vehicle, low oil pressure warning.
- Solution: Replacement of the oil cooler lines.
- Cost: $250 - $500
3.9L V6 (LGD)
Intake Manifold Gasket Leak
- Symptoms: Coolant leaks, engine overheating, sweet smell from engine bay.
- Solution: Replacement of the intake manifold gaskets.
- Cost: $300 - $600
Variable Valve Timing (VVT) Actuator Issues
- Symptoms: Rattling noise on startup, check engine light, rough idle.
- Solution: Replacement of the VVT actuator and potentially camshaft phaser.
- Cost: $500 - $1000
5.3L V8 (LS4)
No widespread issues reported.
- Symptoms: N/A
- Solution: N/A
- Cost: Varies
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
Slipping Gears
- Symptoms: Delayed engagement, difficulty shifting, engine revving without acceleration.
- Solution: Transmission fluid and filter service, or internal transmission repair/rebuild.
- Cost: $800 - $2500
Suspension
Standard Chassis
Worn Struts/Shocks
- Symptoms: Bouncy ride, excessive body roll, clunking noises over bumps.
- Solution: Replacement of struts and/or shocks.
- Cost: $400 - $800
Ball Joint Wear
- Symptoms: Clunking or popping noises when turning or going over bumps, uneven tire wear.
- Solution: Replacement of worn ball joints.
- Cost: $300 - $600
Electrical
Body Control Module (BCM)
Intermittent Electrical Failures
- Symptoms: Power windows, locks, or interior lights malfunctioning intermittently; warning lights may illuminate.
- Solution: Diagnosis and potential reprogramming or replacement of the BCM.
- Cost: $500 - $1000
Alternator
Premature Failure
- Symptoms: Dimming headlights, battery warning light, difficulty starting.
- Solution: Replacement of the alternator.
- Cost: $400 - $700
Exterior
Body Panels
No Major Issues
- Symptoms: N/A
- Solution: N/A
- Cost: Varies
Lighting
No Major Issues
- Symptoms: N/A
- Solution: N/A
- Cost: Varies
Interior
Upholstery
No Major Issues
- Symptoms: N/A
- Solution: N/A
- Cost: Varies
Infotainment System
No Major Issues
- Symptoms: N/A
- Solution: N/A
- Cost: Varies
Summary Verdict
The 2009 Chevrolet Impala generally presents a reasonable level of reliability, particularly with its V8 engine option. However, owners should be aware of potential issues with the intake manifold gaskets on V6 engines, as well as common transmission problems like torque converter shudder and gear slipping, especially on higher-mileage vehicles. Electrical gremlins, particularly related to the BCM and alternator, can also arise. Suspension components like struts and ball joints may require attention as the vehicle ages. Regular maintenance and prompt attention to early symptoms can help mitigate the impact of these potential issues and ensure continued serviceability.