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2009 GMC Envoy

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By Research the Car 4 min read

The 2009 GMC Envoy is a mid-size SUV that offered a blend of utility and comfort. Engine options included a 4.2L Inline-6 engine producing 285 horsepower and 276 lb-ft of torque, and a 5.3L V8 engine producing 302 horsepower and 330 lb-ft of torque. The inline-6 was paired with a 4L60E four-speed automatic transmission, while the V8 was offered with the same 4L60E transmission. Owners generally appreciated the Envoy’s spacious interior, comfortable ride, and towing capability. Common complaints revolved around fuel economy, some reliability issues, and the dated interior design compared to newer competitors.

Engine

4.2L Inline-6

  • Camshaft Actuator Failure
    • Description/Symptoms: Check engine light illuminated with codes related to camshaft position, rough idling, and potential loss of power. Noisy ticking sound at idle.
    • Solution: Replacement of the camshaft actuator (variable valve timing actuator).
    • Estimated Cost to Fix: $400 - $800+
    • Recalls: None Found
  • Coolant Temperature Sensor Failure
    • Description/Symptoms: Inaccurate temperature gauge reading, potential overheating, and difficulty starting. Check engine light may be illuminated.
    • Solution: Replacement of the coolant temperature sensor.
    • Estimated Cost to Fix: $100 - $200+
    • Recalls: None Found

5.3L V8

  • Active Fuel Management (AFM) Lifter Failure
    • Description/Symptoms: Misfires, rough running, check engine light, and potential engine damage due to collapsed lifters associated with the AFM system.
    • Solution: Replacement of the failed AFM lifters, often accompanied by disabling the AFM system to prevent future failures.
    • Estimated Cost to Fix: $1500 - $3000+
    • Recalls: None Found
  • Oil Pressure Sensor Failure
    • Description/Symptoms: Erratic or inaccurate oil pressure gauge readings, check engine light, and potential engine damage if not addressed promptly.
    • Solution: Replacement of the oil pressure sensor and potentially the oil pressure sending unit.
    • Estimated Cost to Fix: $150 - $300+
    • Recalls: None Found

Transmission

4L60E Four-Speed Automatic

  • Harsh Shifting/Slipping
    • Description/Symptoms: Delayed or harsh shifts between gears, slipping during acceleration, and potential complete transmission failure. Often caused by worn clutches or valve body issues.
    • Solution: Depending on the severity, could require a transmission rebuild or replacement. Valve body replacement might resolve some issues.
    • Estimated Cost to Fix: $200 - $3000+
    • Recalls: None Found
  • Torque Converter Failure
    • Description/Symptoms: Shuddering at low speeds, stalling, and potential transmission overheating.
    • Solution: Replacement of the torque converter.
    • Estimated Cost to Fix: $500 - $1500+
    • Recalls: None Found

Suspension

  • Air Suspension Compressor Failure (If Equipped)
    • Description/Symptoms: Vehicle sagging on one or more corners, compressor failing to inflate the air springs, and “Service Ride Control” message on the dashboard.
    • Solution: Replacement of the air suspension compressor.
    • Estimated Cost to Fix: $300 - $800+
    • Recalls: None Found
  • Rear Air Suspension Leaks (If Equipped)
    • Description/Symptoms: Vehicle sagging on one or more corners, compressor running constantly, and potential failure of the compressor due to overwork.
    • Solution: Replacement of the leaking air springs.
    • Estimated Cost to Fix: $300 - $1000+
    • Recalls: None Found
  • Front Wheel Bearing Failure
    • Description/Symptoms: Grinding noise coming from the front wheels, especially when turning. Excessive play in the wheel when checked.
    • Solution: Replacement of the wheel bearing.
    • Estimated Cost to Fix: $200 - $500+
    • Recalls: None Found

Electrical

  • Door Lock Actuator Failure
    • Description/Symptoms: Door locks failing to lock or unlock, requiring manual operation.
    • Solution: Replacement of the faulty door lock actuator.
    • Estimated Cost to Fix: $150 - $300+ per door
    • Recalls: None Found
  • Window Regulator Failure
    • Description/Symptoms: Window failing to raise or lower, or moving erratically.
    • Solution: Replacement of the window regulator.
    • Estimated Cost to Fix: $200 - $400+
    • Recalls: None Found
  • Instrument Cluster Issues
    • Description/Symptoms: Gauges stop working, flickering, or displaying inaccurate information.
    • Solution: Replacement or repair of the instrument cluster.
    • Estimated Cost to Fix: $300 - $700+
    • Recalls: None Found

Exterior

  • Liftgate Strut Failure
    • Description/Symptoms: Liftgate failing to stay open, posing a safety hazard.
    • Solution: Replacement of the liftgate struts.
    • Estimated Cost to Fix: $100 - $200+
    • Recalls: None Found

Interior

  • Seat Heater Failure
    • Description/Symptoms: Seat heater not working or only working intermittently.
    • Solution: Repair or replacement of the seat heater element or switch.
    • Estimated Cost to Fix: $100 - $400+
    • Recalls: None Found

Summary

The 2009 GMC Envoy can experience a variety of issues, ranging from relatively minor electrical faults to more serious engine and transmission problems. The severity and cost of repairs vary depending on the specific issue and the engine/transmission configuration. The AFM lifter failure in the 5.3L V8 engines can be a particularly costly repair, while electrical and suspension issues, such as door lock actuator failures or air suspension problems, can also add up. Careful inspection and a thorough pre-purchase inspection are recommended when considering purchasing a used 2009 GMC Envoy.

GMC, Envoy
GMC Envoy 2009
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