2004 Pontiac Sunfire

The 2004 Pontiac Sunfire is a compact car that was offered in coupe and sedan body styles. The most common engine option was a 2.2L Ecotec Inline-4 producing 140 horsepower and 150 lb-ft of torque. A 2.4L DOHC engine was also available. Transmission options included a 5-speed manual and a 4-speed automatic. Owners often appreciated the Sunfire for its affordability and sporty styling, while common complaints revolved around its reliability and build quality.

Engine

2.2L Ecotec Inline-4

• Coolant Leaks
  • Description/Symptoms: Coolant leaks often develop around the intake manifold gasket or the thermostat housing. This can lead to overheating and potential engine damage if not addressed. Symptoms include low coolant levels, visible leaks, and engine overheating.
  • Solution: Replacing the intake manifold gasket or thermostat housing and gasket.
  • Estimated Cost to Fix: $100 - $300+
  • Recalls: None Found
• Ignition Coil Failure
  • Description/Symptoms: Individual ignition coils can fail, leading to misfires and a rough-running engine. The check engine light will likely illuminate with a code indicating which cylinder is misfiring.
  • Solution: Replacing the faulty ignition coil.
  • Estimated Cost to Fix: $50 - $150+ per coil
  • Recalls: None Found
• Crankshaft Position Sensor Failure
  • Description/Symptoms: The crankshaft position sensor can fail, leading to a no-start condition or intermittent stalling.
  • Solution: Replacing the crankshaft position sensor.
  • Estimated Cost to Fix: $80 - $200+
  • Recalls: None Found

2.4L DOHC Inline-4

• No Issues Found

Transmission

4-Speed Automatic

• Harsh Shifting
  • Description/Symptoms: The 4T40-E transmission can develop harsh or erratic shifting, especially between 1st and 2nd gear. This can be caused by worn valve body components or solenoid issues.
  • Solution: Servicing or replacing the valve body, or replacing faulty solenoids. A complete transmission rebuild may be necessary in severe cases.
  • Estimated Cost to Fix: $200 - $1500+ depending on the severity of the problem
  • Recalls: None Found
• Torque Converter Failure
  • Description/Symptoms: The torque converter can fail, resulting in slipping, shuddering, or complete loss of drive.
  • Solution: Replacing the torque converter.
  • Estimated Cost to Fix: $400 - $1000+
  • Recalls: None Found

5-Speed Manual

• No Issues Found

Suspension

• Strut Mount Failure
  • Description/Symptoms: The front strut mounts can wear out and fail, leading to clunking noises over bumps and reduced ride quality.
  • Solution: Replacing the strut mounts.
  • Estimated Cost to Fix: $200 - $400+ per pair
  • Recalls: None Found
• Worn Ball Joints/Tie Rod Ends
  • Description/Symptoms: Ball joints and tie rod ends are prone to wear, causing loose steering, wandering, and clunking noises.
  • Solution: Replacing the worn ball joints and/or tie rod ends.
  • Estimated Cost to Fix: $100 - $300+ per component
  • Recalls: None Found

Electrical

• Power Window Motor Failure
  • Description/Symptoms: Power window motors can fail, preventing the windows from operating.
  • Solution: Replacing the faulty power window motor.
  • Estimated Cost to Fix: $100 - $300+ per window
  • Recalls: None Found
• Instrument Cluster Issues
  • Description/Symptoms: The instrument cluster can experience issues such as flickering lights, inaccurate readings, or complete failure.
  • Solution: Repairing or replacing the instrument cluster.
  • Estimated Cost to Fix: $150 - $500+
  • Recalls: None Found

Exterior

• Rust
  • Description/Symptoms: Rust is a common problem, especially in areas with road salt. Rust can appear on the rocker panels, fenders, and undercarriage.
  • Solution: Rust repair or panel replacement.
  • Estimated Cost to Fix: Varies greatly depending on the severity and extent of the rust.
  • Recalls: None Found

Interior

• Headliner Sagging
  • Description/Symptoms: The headliner can sag or detach from the roof due to failing adhesive.
  • Solution: Replacing or re-gluing the headliner.
  • Estimated Cost to Fix: $150 - $400+
  • Recalls: None Found

Summary

The 2004 Pontiac Sunfire is generally an affordable vehicle to purchase, but potential owners should be aware of the common issues. Engine issues such as coolant leaks and ignition coil failures are prevalent, particularly with the 2.2L engine. The automatic transmission can also suffer from harsh shifting and torque converter problems. Suspension and electrical issues, along with interior trim concerns, are also frequently reported. The severity of these issues ranges from minor inconveniences to potentially costly repairs. Rust is also a concern, depending on the vehicle’s location and maintenance history. Overall, pre-purchase inspection is crucial.