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2004 Pontiac GTO

2004 Pontiac GTO

Overview

The 2004 Pontiac GTO, a performance-oriented coupe, offered a potent driving experience with its Australian-derived platform and V8 engine options. While generally praised for its power and handling, like any vehicle, it has specific areas where owners have reported issues. This data focuses on documented mechanical and electrical problems beyond routine maintenance, providing insights into potential reliability concerns for prospective buyers or current owners. Understanding these common failure points can help in proactive maintenance and budgeting for repairs.


Engine

5.7L LS1 V8

Oil Cooler Line Leaks

  • Symptoms: Visible oil leaks around the oil cooler lines, potential for low oil pressure.
  • Solution: Replacement of leaking oil cooler lines and fittings.
  • Cost: $300 - $600

Intake Manifold Gasket Leaks

  • Symptoms: Coolant leaks, rough idle, potential for coolant entering the engine oil.
  • Solution: Replacement of intake manifold gaskets.
  • Cost: $500 - $900

6.0L LS2 V8

No widespread issues reported.

  • Symptoms: No widespread issues reported.
  • Solution: No widespread issues reported.
  • Cost: No widespread issues reported.

Transmission

4-Speed Automatic (4L60E)

Torque Converter Issues

  • Symptoms: Shuddering, slipping, or delayed engagement.
  • Solution: Rebuild or replacement of the torque converter.
  • Cost: $800 - $1500

6-Speed Manual (T56)

Clutch Wear

  • Symptoms: Slipping clutch, difficulty shifting gears.
  • Solution: Replacement of clutch assembly.
  • Cost: $700 - $1200

Suspension

Standard Chassis

No Major Issues

  • Symptoms: No Major Issues
  • Solution: No Major Issues
  • Cost: No Major Issues

Electrical

General Electrical System

Window Regulator Failure

  • Symptoms: Power windows not operating, slow or stuck windows.
  • Solution: Replacement of window regulator assembly.
  • Cost: $200 - $400

Instrument Cluster Malfunctions

  • Symptoms: Intermittent gauge failures, warning lights staying on.
  • Solution: Repair or replacement of the instrument cluster.
  • Cost: $400 - $800

Exterior

Body Panels and Trim

No Major Issues

  • Symptoms: No Major Issues
  • Solution: No Major Issues
  • Cost: No Major Issues

Interior

Cabin Components

HVAC Blower Motor Failure

  • Symptoms: No air conditioning or heat, or intermittent operation.
  • Solution: Replacement of the HVAC blower motor.
  • Cost: $250 - $500

Summary Verdict

The 2004 Pontiac GTO, particularly models with the 5.7L LS1 V8, exhibits some common issues related to oil cooler lines and intake manifold gaskets. The automatic transmission can sometimes suffer from torque converter problems, while manual transmissions may require clutch replacements. Electrical gremlins like window regulators and instrument cluster issues are also noted. The 6.0L LS2 engine and the suspension systems are generally considered more robust. Overall, while offering strong performance, potential owners should be aware of these specific reliability points and factor them into their ownership considerations.

This post is licensed under CC BY 4.0 by the author.