2008 GMC Envoy

Introduction:

The 2008 GMC Envoy is a mid-size SUV offered with several engine and transmission options. It comes with a standard 4.2L V6 engine producing 291 horsepower and 277 lb-ft of torque, paired with a 6-speed automatic transmission. Other engine choices include a 5.3L V8 with 302 horsepower and 330 lb-ft of torque mated to a 6-speed automatic transmission, and a Denali-exclusive 6.2L V8 generating 403 horsepower and 417 lb-ft of torque paired with a 6-speed automatic transmission.

Drivers appreciate the Envoy’s spacious cabin, powerful engines, and comfortable ride. However, some common issues have been reported.

Engine

4.2L V6

• Intake Manifold Gasket Failure
  • Description/Symptoms: Coolant leak, overheating, engine misfires
  • Solution: Replace intake manifold gasket
  • Estimated Cost to Fix: $300 - $500
  • Recalls: None Found
• Timing Chain Failure
  • Description/Symptoms: Engine rattle, reduced power, check engine light
  • Solution: Replace timing chain and components
  • Estimated Cost to Fix: $1,500 - $2,500
  • Recalls: None Found

5.3L V8

• AFM (Active Fuel Management) System Failure
  • Description/Symptoms: Reduced fuel economy, engine knocking, check engine light
  • Solution: Replace AFM lifters and components
  • Estimated Cost to Fix: $1,000 - $2,000
  • Recalls: None Found
• Oil Consumption Issues
  • Description/Symptoms: Excessive oil consumption, low oil level warning light on
  • Solution: Replace piston rings or perform engine rebuild
  • Estimated Cost to Fix: $2,000 - $4,000+
  • Recalls: None Found

6.2L V8

• No Issues Found

Transmission

6-Speed Automatic

• Torque Converter Shudder
  • Description/Symptoms: Vibration or shudder during acceleration
  • Solution: Replace torque converter
  • Estimated Cost to Fix: $500 - $1,000
  • Recalls: 14V490000
• Shift Solenoid Failure
  • Description/Symptoms: Hard shifting, slipping gears, check engine light
  • Solution: Replace shift solenoid
  • Estimated Cost to Fix: $200 - $500
  • Recalls: None Found

Suspension

• Front Suspension Bushing Wear
  • Description/Symptoms: Clunking or rattling noise from front end, poor handling
  • Solution: Replace worn bushings
  • Estimated Cost to Fix: $100 - $200 per bushing
  • Recalls: None Found
• Rear Shock Absorber Failure
  • Description/Symptoms: Leaking shocks, rough ride, reduced handling
  • Solution: Replace shock absorbers
  • Estimated Cost to Fix: $200 - $400 per shock
  • Recalls: None Found

Electrical

• Battery Drain
  • Description/Symptoms: Battery dies after sitting for a few days, alternator not charging properly
  • Solution: Replace battery or alternator, check for parasitic draw
  • Estimated Cost to Fix: $100 - $500
  • Recalls: None Found
• Headlight Switch Failure
  • Description/Symptoms: Headlights not turning on, flickering headlights
  • Solution: Replace headlight switch
  • Estimated Cost to Fix: $100 - $200
  • Recalls: None Found

Exterior

• Tailgate Hinge Failure
  • Description/Symptoms: Tailgate sags or falls off
  • Solution: Replace tailgate hinges
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found

Interior

• Steering Wheel Buttons Malfunction
  • Description/Symptoms: Buttons on steering wheel stop working
  • Solution: Replace steering wheel switch assembly
  • Estimated Cost to Fix: $200 - $300
  • Recalls: None Found
• Dashboard Panel Cracking
  • Description/Symptoms: Cracks on dashboard panel above glove compartment
  • Solution: Replace dashboard panel
  • Estimated Cost to Fix: $500 - $800
  • Recalls: None Found

Summary:

The 2008 GMC Envoy has several common issues, particularly with the engine and transmission. Some of these issues, such as intake manifold gasket failure and timing chain failure, can be costly to repair. However, the SUV is generally well-liked for its spacious interior, powerful engines, and comfortable ride.