2004 GMC Envoy

Introduction

The 2004 GMC Envoy is a midsize SUV known for its powerful engines, spacious interior, and sturdy construction. It is powered by a choice of three engines: a 4.2L inline-6 with 275 horsepower and 275 lb-ft of torque, a 5.3L V8 with 290 horsepower and 324 lb-ft of torque, or a 6.0L V8 with 320 horsepower and 395 lb-ft of torque. Transmission options include a 4-speed automatic for the inline-6 engine and a 5-speed automatic for the V8 engines.

Despite its overall reliability, the 2004 GMC Envoy has experienced various issues reported by owners. These issues range from minor inconveniences to more serious mechanical problems.

Engine

4.2L Inline-6

• Intake Manifold Gasket Failure
  • Description/Symptoms: Coolant leaks, overheating, decreased engine performance
  • Solution: Replace intake manifold gasket
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found
• Valve Cover Gasket Leak
  • Description/Symptoms: Oil leaks from valve covers, burning oil smell
  • Solution: Replace valve cover gaskets
  • Estimated Cost to Fix: $150 - $300+
  • Recalls: None Found

5.3L V8

• AFM (Active Fuel Management) System Failure
  • Description/Symptoms: Rough idle, engine misfires, decreased fuel economy
  • Solution: Replace AFM lifters or disable AFM system
  • Estimated Cost to Fix: $500 - $1,500+
  • Recalls: None Found
• Exhaust Manifold Bolt Failure
  • Description/Symptoms: Exhaust leaks, rattling noises
  • Solution: Replace exhaust manifold bolts
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

6.0L V8

• Piston Ring Failure
  • Description/Symptoms: Excessive oil consumption, blue smoke from exhaust
  • Solution: Engine rebuild or replacement
  • Estimated Cost to Fix: $5,000 - $8,000+
  • Recalls: None Found

Transmission

4-Speed Automatic

• Overheating
  • Description/Symptoms: Transmission slipping, delayed shifts, burning smell
  • Solution: Replace transmission cooler or rebuild transmission
  • Estimated Cost to Fix: $1,000 - $3,000+
  • Recalls: None Found
• Shift Solenoid Failure
  • Description/Symptoms: Erratic shifting, hard shifts, no shifts
  • Solution: Replace shift solenoids
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found

5-Speed Automatic

• Torque Converter Failure
  • Description/Symptoms: Shuddering during acceleration or gear changes
  • Solution: Replace torque converter
  • Estimated Cost to Fix: $800 - $1,200+
  • Recalls: None Found
• Transmission Control Module (TCM) Failure
  • Description/Symptoms: Transmission shifting problems, no power to transmission
  • Solution: Replace TCM
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found

Suspension

• Front Lower Control Arm Bushing Failure
  • Description/Symptoms: Noisy suspension, vibration, poor handling
  • Solution: Replace control arm bushings
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found
• Shock Absorber Failure
  • Description/Symptoms: Reduced ride quality, bouncing, bottoming out
  • Solution: Replace shock absorbers
  • Estimated Cost to Fix: $400 - $800+
  • Recalls: None Found

Electrical

• Alternator Failure
  • Description/Symptoms: Electrical problems, battery not charging
  • Solution: Replace alternator
  • Estimated Cost to Fix: $500 - $800+
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: Battery dies after sitting for a period of time
  • Solution: Diagnose and repair source of drain (common causes include faulty modules or parasitic draw)
  • Estimated Cost to Fix: Varies depending on cause
  • Recalls: None Found

Exterior

• Tailgate Lift Support Failure
  • Description/Symptoms: Tailgate drops slowly or does not stay open
  • Solution: Replace tailgate lift supports
  • Estimated Cost to Fix: $100 - $200+
  • Recalls: None Found
• Weatherstripping Degradation
  • Description/Symptoms: Leaks, wind noise
  • Solution: Replace weatherstripping
  • Estimated Cost to Fix: $100 - $300+
  • Recalls: None Found

Interior

• Dashboard Cracking
  • Description/Symptoms: Cracks appear on the dashboard
  • Solution: Replace dashboard or use a dash cover
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found
• Power Window Motor Failure
  • Description/Symptoms: Window does not move or moves slowly
  • Solution: Replace power window motor
  • Estimated Cost to Fix: $150 - $300+
  • Recalls: None Found

Summary

The 2004 GMC Envoy is a generally reliable vehicle, but it has experienced various issues, including engine problems, transmission issues, and electrical problems. Some of these issues can be costly to repair. However, the overall severity and cost of the issues reported by owners are relatively moderate compared to other vehicles in its class.