2011 Chevrolet Impala

The 2011 Chevrolet Impala is a full-size sedan known for its spacious interior, comfortable ride, and large trunk. It was offered with one engine option: a 3.5L V6 engine that produced 211 horsepower and 214 lb-ft of torque. The Impala was praised for its reliability and affordability, but criticized for its dated styling and basic interior. The Impala came with one transmission option, a 4-speed automatic transmission.

Engine

3.5L V6 (LZ4)

• Intake Manifold Gasket Failure
  • Description/Symptoms: Coolant leaks, overheating, white smoke from exhaust, rough idle.
  • Solution: Replace the intake manifold gaskets.
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found
• Catalytic Converter Failure
  • Description/Symptoms: Illuminated check engine light, decreased fuel economy, poor acceleration, rattling noise from the exhaust system.
  • Solution: Replace the faulty catalytic converter.
  • Estimated Cost to Fix: $800 - $1500+
  • Recalls: None Found
• Evaporative Emission (EVAP) System Issues
  • Description/Symptoms: Illuminated check engine light, difficulty refueling, fuel odor.
  • Solution: Diagnose and repair the EVAP system, potentially involving replacing the purge valve, vent valve, or fuel cap.
  • Estimated Cost to Fix: $100 - $500+
  • Recalls: None Found

Transmission

4T65-E 4-Speed Automatic

• Harsh Shifting/Slipping
  • Description/Symptoms: Hard shifts between gears, especially 1st to 2nd and 2nd to 3rd, slipping during acceleration, failure to shift.
  • Solution: Perform a transmission flush, repair or replace worn solenoids, rebuild or replace the transmission.
  • Estimated Cost to Fix: $200 (flush) - $3000+ (rebuild/replace)
  • Recalls: None Found
• Torque Converter Failure
  • Description/Symptoms: Shuddering at low speeds, stalling, transmission slipping.
  • Solution: Replace the torque converter.
  • Estimated Cost to Fix: $500 - $1500+
  • Recalls: None Found

Suspension

• Strut Mount Failure
  • Description/Symptoms: Clunking or rattling noise from the front or rear suspension, especially when going over bumps.
  • Solution: Replace the strut mounts.
  • Estimated Cost to Fix: $200 - $500+ per strut
  • Recalls: None Found
• Wheel Bearing Failure
  • Description/Symptoms: Humming or grinding noise from the wheels, especially when turning.
  • Solution: Replace the faulty wheel bearing.
  • Estimated Cost to Fix: $200 - $400+ per wheel
  • Recalls: None Found

Electrical

• Instrument Panel Cluster Issues
  • Description/Symptoms: Erratic gauge readings, flickering or dimming display, complete failure of the instrument panel.
  • Solution: Repair or replace the instrument panel cluster.
  • Estimated Cost to Fix: $200 - $600+
  • Recalls: None Found
• Power Window/Door Lock Issues
  • Description/Symptoms: Windows or door locks not operating correctly, intermittent operation.
  • Solution: Diagnose and repair the wiring harness, replace faulty switches or motors.
  • Estimated Cost to Fix: $100 - $400+
  • Recalls: None Found
• Alternator Failure
  • Description/Symptoms: Dimming headlights, battery not charging, stalling, illuminated battery warning light.
  • Solution: Replace the alternator.
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found

Exterior

• Headlight Condensation
  • Description/Symptoms: Moisture buildup inside the headlight housing, reducing visibility.
  • Solution: Remove and reseal the headlight housing or replace the headlight assembly.
  • Estimated Cost to Fix: $100 - $500+
  • Recalls: None Found

Interior

• Air Conditioning Issues
  • Description/Symptoms: Weak or no cold air, strange noises from the AC system.
  • Solution: Recharge the AC system, replace the compressor, condenser, or other faulty components.
  • Estimated Cost to Fix: $100 (recharge) - $1200+ (compressor replacement)
  • Recalls: None Found
• Steering Wheel Controls Malfunctioning
  • Description/Symptoms: Buttons on the steering wheel not functioning, such as the radio controls or cruise control.
  • Solution: Replace the clock spring, wiring harness or the steering wheel control unit itself.
  • Estimated Cost to Fix: $200-$500+
  • Recalls: None Found

Summary

The 2011 Chevrolet Impala, while generally reliable, does have some common issues owners should be aware of. Engine issues like intake manifold gasket and catalytic converter failures can be costly to repair. Transmission problems, such as harsh shifting and torque converter failure, are also significant concerns. Suspension issues, electrical problems, and air conditioning malfunctions can also contribute to the overall cost of ownership. While not all Impalas will experience these problems, being aware of them can help potential buyers make informed decisions and budget for potential repairs. The severity and cost of these issues range from minor inconveniences to major repairs potentially costing thousands of dollars.