2007 Chevrolet Impala

The 2007 Chevrolet Impala is a full-size sedan that was known for its comfortable ride and spacious interior. Engine options included a 3.5L V6 (211 hp, 214 lb-ft of torque) and a 3.9L V6 (233 hp, 240 lb-ft of torque). Both engines were paired with a 4-speed automatic transmission. People generally liked the Impala for its affordability and ease of use, but some disliked its somewhat dated design and average fuel economy.

Engine

3.5L V6

• Intake Manifold Gasket Failure
  • Description/Symptoms: Engine misfires, rough idle, coolant loss, and a “check engine” light. May also experience overheating if coolant levels drop significantly.
  • Solution: Replace the intake manifold gasket.
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found
• Faulty Mass Air Flow (MAF) Sensor
  • Description/Symptoms: Rough idle, stalling, poor acceleration, decreased fuel economy, and “check engine” light.
  • Solution: Replace the MAF sensor.
  • Estimated Cost to Fix: $100 - $300+
  • Recalls: None Found

3.9L V6

• Valve Train Noise (Lifter Tick)
  • Description/Symptoms: Ticking or tapping noise coming from the engine, often more pronounced at idle or when the engine is cold.
  • Solution: In some cases, an oil change with a high-quality synthetic oil may help. In severe cases, lifter replacement may be necessary.
  • Estimated Cost to Fix: $100 (oil change) - $800+ (lifter replacement)
  • Recalls: None Found

Transmission

4-Speed Automatic (Both Engines)

• Torque Converter Problems
  • Description/Symptoms: Shuddering or vibrations at certain speeds, especially when the torque converter is locking up. May also experience poor acceleration or difficulty shifting.
  • Solution: Replace the torque converter.
  • Estimated Cost to Fix: $800 - $1500+
  • Recalls: None Found
• Harsh or Delayed Shifting
  • Description/Symptoms: Hard shifts between gears, delayed engagement of gears, or slipping during shifts.
  • Solution: This can be caused by low transmission fluid, a faulty shift solenoid, or wear and tear on the transmission components. Diagnosis will be required to determine the exact cause.
  • Estimated Cost to Fix: $100 (fluid change) - $2000+ (rebuild or replacement)
  • Recalls: None Found

Suspension

• Front Strut Mount Failure
  • Description/Symptoms: Clunking or rattling noises from the front suspension, especially when going over bumps. Can also cause steering instability.
  • Solution: Replace the front strut mounts.
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found
• Rear Suspension Sag
  • Description/Symptoms: The rear of the car sits lower than normal, especially when loaded with passengers or cargo.
  • Solution: Replace the rear shocks or springs.
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found

Electrical

• Passlock Security System Issues
  • Description/Symptoms: The car fails to start, and the security light remains illuminated. This is often related to a faulty Passlock sensor or wiring.
  • Solution: In some cases, the system can be reset. In others, the Passlock sensor or related wiring needs to be repaired or replaced.
  • Estimated Cost to Fix: $100 - $500+
  • Recalls: None Found
• Instrument Cluster Problems
  • Description/Symptoms: Gauges malfunction, dim or flickering display, or complete failure of the instrument cluster.
  • Solution: Repair or replace the instrument cluster.
  • Estimated Cost to Fix: $200 - $600+
  • Recalls: None Found

Exterior

• Headlight Lens Clouding/Yellowing
  • Description/Symptoms: Headlight lenses become cloudy or yellowed, reducing headlight brightness and visibility.
  • Solution: Polishing the headlight lenses can improve clarity, but in severe cases, replacement may be necessary.
  • Estimated Cost to Fix: $30 (polishing kit) - $300+ (headlight replacement)
  • Recalls: None Found

Interior

• Air Conditioning Issues
  • Description/Symptoms: Air conditioning blows warm air, weak airflow, or no airflow at all.
  • Solution: This can be caused by a refrigerant leak, a faulty compressor, or a malfunctioning blend door actuator.
  • Estimated Cost to Fix: $100 (recharge) - $1000+ (compressor replacement)
  • Recalls: None Found
• Power Window Regulator Failure
  • Description/Symptoms: Power windows operate slowly, erratically, or not at all.
  • Solution: Replace the faulty window regulator.
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Summary

The 2007 Chevrolet Impala has several potential issues to be aware of, spanning engine, transmission, suspension, electrical, exterior, and interior components. Severity ranges from minor inconveniences like headlight lens clouding to more significant problems like transmission failure. Repair costs can vary widely, from a few hundred dollars for simpler fixes to several thousand for major repairs. The Passlock security system and intake manifold gasket issues seem to be common and potentially costly. Overall, potential buyers should have a thorough inspection performed by a trusted mechanic before purchasing a 2007 Impala.