2005 Pontiac G6

The 2005 Pontiac G6 was a mid-size sedan offering a blend of sporty styling and practicality. It was available with several engine and transmission options. One common engine option was the 3.5L V6, producing approximately 200 horsepower and 220 lb-ft of torque. Other engine options available were the 2.4L I4 and the 3.9L V6. Transmission options include a 4-speed automatic and a 6-speed manual. Owners often appreciate the G6’s exterior design and relatively spacious interior. Common complaints include electrical issues, build quality concerns, and some reliability problems.

Engine

3.5L V6

• Intake Manifold Gasket Failure
  • Description/Symptoms: Engine misfires, rough idle, vacuum leak, check engine light.
  • Solution: Replace the intake manifold gasket.
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found
• Valve Cover Gasket Leaks
  • Description/Symptoms: Oil leaks, burning oil smell.
  • Solution: Replace the valve cover gaskets.
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

2.4L I4

• Timing Chain Issues
  • Description/Symptoms: Rattling noise from the engine, especially on startup, check engine light, potential engine damage.
  • Solution: Replace the timing chain, tensioners, and guides.
  • Estimated Cost to Fix: $800 - $1500+
  • Recalls: None Found
• Excessive Oil Consumption
  • Description/Symptoms: Low oil level, blue smoke from the exhaust, engine knocking.
  • Solution: Depending on the severity, may involve piston ring replacement or engine replacement.
  • Estimated Cost to Fix: $1500 - $4000+
  • Recalls: None Found

3.9L V6

• No Issues Found

Transmission

4-Speed Automatic

• Shifting Problems/Slipping
  • Description/Symptoms: Harsh or delayed shifting, slipping between gears, transmission warning light.
  • Solution: May require a transmission rebuild or replacement.
  • Estimated Cost to Fix: $1800 - $3500+
  • Recalls: None Found
• Torque Converter Failure
  • Description/Symptoms: Shuddering, stalling, poor acceleration.
  • Solution: Replace the torque converter.
  • Estimated Cost to Fix: $800 - $1500+
  • Recalls: None Found

6-Speed Manual

• No Issues Found

Suspension

• Strut and Shock Absorber Failure
  • Description/Symptoms: Bouncy ride, poor handling, clunking noises.
  • Solution: Replace the struts and/or shock absorbers.
  • Estimated Cost to Fix: $300 - $800+ per axle
  • Recalls: None Found
• Control Arm Bushing Wear
  • Description/Symptoms: Clunking noises, especially over bumps, loose steering.
  • Solution: Replace the control arm bushings or the entire control arm.
  • Estimated Cost to Fix: $200 - $600+ per control arm
  • Recalls: None Found

Electrical

• Body Control Module (BCM) Issues
  • Description/Symptoms: Intermittent electrical problems, such as malfunctioning power windows, door locks, or lights.
  • Solution: Requires diagnosis and possible replacement or reprogramming of the BCM.
  • Estimated Cost to Fix: $300 - $800+
  • Recalls: None Found
• Ignition Switch Problems
  • Description/Symptoms: Difficulty starting the car, stalling, key getting stuck in the ignition.
  • Solution: Replace the ignition switch.
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found
• Headlight/Taillight Issues
  • Description/Symptoms: Lights not working, flickering, or burning out frequently.
  • Solution: Replace the bulb or the headlight/taillight assembly. Check wiring and connections.
  • Estimated Cost to Fix: $50 - $300+ per light
  • Recalls: None Found

Exterior

• Rusting
  • Description/Symptoms: Rust forming on body panels, especially around wheel wells and rocker panels.
  • Solution: Repair or replace rusted body panels.
  • Estimated Cost to Fix: $200 - $1000+ per panel
  • Recalls: None Found

Interior

• Sunroof Problems
  • Description/Symptoms: Sunroof not opening or closing properly, leaking.
  • Solution: Repair or replace the sunroof motor, tracks, or seals.
  • Estimated Cost to Fix: $200 - $800+
  • Recalls: None Found
• Power Window Failure
  • Description/Symptoms: Window not going up or down, slow operation.
  • Solution: Replace the window motor or regulator.
  • Estimated Cost to Fix: $150 - $400+ per window
  • Recalls: None Found
• Airbag Light On
  • Description/Symptoms: Airbag light illuminated on the dashboard.
  • Solution: Diagnose and repair the airbag system. Could be a faulty sensor, wiring issue, or airbag module problem.
  • Estimated Cost to Fix: $100 - $1000+ depending on the issue
  • Recalls: Check NHTSA for specific recalls related to airbags

Summary

The 2005 Pontiac G6 has several common issues that potential buyers should be aware of. Engine problems such as intake manifold gasket leaks, timing chain issues on the 2.4L I4, and transmission problems on the 4-speed automatic can be costly to repair. Electrical issues with the BCM and ignition switch are also common. Suspension and interior issues can add to the overall cost of ownership. While some repairs are relatively inexpensive, others can be quite significant, potentially making the G6 a less desirable option for some buyers.