2009 GMC Envoy

Introduction: The 2009 GMC Envoy is a mid-size SUV known for its spacious interior, powerful engine options, and rugged exterior. It comes with various engine and transmission options, including a 4.2L inline-6, 5.3L V8, and 6-speed automatic transmission. People appreciate its comfortable ride, towing capabilities, and off-road prowess; however, it tends to have some common issues.

Engine

• 4.2L Inline-6:
  • Intake Manifold Gasket Failure:
    • Symptoms: Oil leaks, decreased engine performance
    • Solution: Replace intake manifold gasket
    • Estimated Cost to Fix: $300 - $500
  • Timing Chain Failure:
    • Symptoms: Engine rattling, reduced power
    • Solution: Replace timing chain and related components
    • Estimated Cost to Fix: $1,500 - $2,500+
  • Valve Cover Gasket Leak:
    • Symptoms: Oil leaks
    • Solution: Replace valve cover gasket
    • Estimated Cost to Fix: $100 - $200
• 5.3L V8:
  • Active Fuel Management (AFM) System Issues:
    • Symptoms: Reduced engine power, check engine light
    • Solution: Disable or replace AFM lifters
    • Estimated Cost to Fix: $500 - $1,500+
  • Oil Consumption:
    • Symptoms: Low oil levels
    • Solution: Replace piston rings or perform engine rebuild
    • Estimated Cost to Fix: $1,500 - $5,000+
  • Spark Plug Failure:
    • Symptoms: Misfires, engine performance issues
    • Solution: Replace spark plugs
    • Estimated Cost to Fix: $100 - $200

Transmission

• 6-Speed Automatic Transmission:
  • Transmission Slipping:
    • Symptoms: Difficulty shifting gears, loss of power
    • Solution: Replace transmission
    • Estimated Cost to Fix: $2,500 - $4,000+
  • Transmission Fluid Leaks:
    • Symptoms: Fluid leaks
    • Solution: Repair leaks, replace seals or gaskets
    • Estimated Cost to Fix: $200 - $500+
  • Torque Converter Failure:
    • Symptoms: Shuddering, loss of power
    • Solution: Replace torque converter
    • Estimated Cost to Fix: $1,000 - $2,000+

Suspension

• Front Suspension Lower Ball Joint Failure:
  • Symptoms: Knocking or clunking noises, uneven tire wear
  • Solution: Replace lower ball joints
  • Estimated Cost to Fix: $300 - $600+
• Rear Suspension Shock Absorbers Failure:
  • Symptoms: Rough ride, poor handling
  • Solution: Replace shock absorbers
  • Estimated Cost to Fix: $200 - $400+
• Steering Rack Failure:
  • Symptoms: Fluid leaks, difficulty steering
  • Solution: Replace steering rack
  • Estimated Cost to Fix: $1,000 - $2,000+

Electrical

• Battery Drain:
  • Symptoms: Battery dies quickly
  • Solution: Identify and fix the source of the drain
  • Estimated Cost to Fix: Varies depending on the cause
• Alternator Failure:
  • Symptoms: Dim lights, electrical issues
  • Solution: Replace alternator
  • Estimated Cost to Fix: $500 - $1,000+
• Headlight Switch Failure:
  • Symptoms: Headlights not working
  • Solution: Replace headlight switch
  • Estimated Cost to Fix: $200 - $400+

Exterior

• Hood Latch Failure:
  • Symptoms: Hood pops open while driving
  • Solution: Replace hood latch
  • Estimated Cost to Fix: $100 - $200
• Tailgate Rust:
  • Symptoms: Rust on the tailgate
  • Solution: Repair or replace tailgate
  • Estimated Cost to Fix: $500 - $2,000+ ** Interior**
• Dashboard Cracking:
  • Symptoms: Cracks on the dashboard
  • Solution: Replace dashboard
  • Estimated Cost to Fix: $500 - $1,000+
• Climate Control Issues:
  • Symptoms: AC not blowing cold, heater not working
  • Solution: Repair or replace climate control components
  • Estimated Cost to Fix: $200 - $500+
• Electrical Window Failure:
  • Symptoms: Power windows not working
  • Solution: Replace window motors or switches
  • Estimated Cost to Fix: $200 - $500+

Summary: The 2009 GMC Envoy has several common issues across various components. Engine problems, such as intake manifold gasket failure and timing chain failure, are prevalent with the 4.2L engine. Transmission issues, like slipping and fluid leaks, affect the 6-speed automatic transmission. Suspension components, electrical components, and interior features also experience problems. The severity of these issues varies, and the cost to fix them can range from minor to major expenses. Potential buyers should research these issues thoroughly to make an informed decision before purchasing this vehicle.