Is the 2004 Pontiac Grand Prix reliable?

It can be reasonably reliable with good maintenance, especially with the 3.8L V6, but age-related issues like coolant leaks, transmission wear, and electrical glitches are common on higher-mile examples.

What are the most common 2004 Pontiac Grand Prix problems?

Frequent complaints include intake/coolant leaks on the 3.8L V6, transmission shifting issues at higher mileage, electrical/interior switch problems, and front suspension or wheel bearing wear.

Are maintenance costs high for a 2004 Grand Prix?

Costs are typically moderate for the class because parts are common, but big-ticket items like transmission repairs or overheating-related engine work can be expensive if problems are ignored.

What are the best years to buy for the Pontiac Grand Prix?

Many shoppers prefer well-maintained late-model seventh-generation cars (2004–2008) for updated styling and features, but overall condition, service history, and a clean cooling/transmission record matter more than the exact year.

What should I check before buying a 2004 Pontiac Grand Prix?

Look for evidence of coolant leaks or overheating, verify smooth transmission operation, scan for stored trouble codes, test all electrical functions (windows, locks, gauges, HVAC), and listen for front-end noise indicating wheel bearing or suspension wear. For deeper details, get a complete owner’s guide with full specs, trim breakdowns, and the recommended maintenance schedules to keep your 2004 Pontiac Grand Prix running strong.

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Reliability AnalysisBased on known issue patterns, repair cost data, and ownership trends · How we score

2004 Pontiac Grand Prix Reliability ReportC+ grade · moderate risk · system-by-system breakdown

78/ 100

KeepScore

MODERATE RISK

Grade: C+

A value-packed sedan with a great engine, but its transmission and common leaks demand careful pre-purchase scrutiny and a repair fund.

Full system breakdown + what I would do

Quick Facts · 2004 Pontiac Grand Prix

The system most likely to surface first: intake manifold gaskets (moderate severity).
Has 9 NHTSA recalls on record — the most notable involves the engine and engine cooling:engine.
Scores 7 points below the strongest nearby year — the 2003 Pontiac Grand Prix earns a 85.

Is the 2004 Pontiac Grand Prix Worth Buying?

The 2004 Pontiac Grand Prix offers a comfortable ride and robust engine options at an attractive price point, making it a compelling choice for the budget-conscious. However, specific transmission and electrical weaknesses, coupled with common intake manifold gasket failures, mean prospective owners must proceed with caution and be prepared for potential repairs.

Biggest Strengths

Durable 3.8L V6 engine (L36/L67)
Comfortable, spacious interior for its class
Affordable parts and relatively easy to repair for DIYers

What Tends to Fail First on the 2004 Pontiac Grand Prix

The systems that break first on the 2004 Pontiac Grand Prix. Mileage windows, repair costs, and fix-before-you-buy notes are in the full report.

Intake Manifold Gasketsmoderate

Automatic Transmission (4T65-E)major

Electrical System & BCMmoderate

Typical mileage, cost ranges, and the exact what-to-check list are in the full report.

2004 Pontiac Grand Prix Recall History

9 recalls on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.

ENGINE AND ENGINE COOLING:ENGINE

General Motors LLC (GM) notified the agency on April 2, 2015, that they are is recalling certain model year 2004 Buick Regal vehicles manufactured April 9, 2003, to June 1, 2003, 2004 Chevrolet Impala vehicles manufactured April 8, 2003, to June 23, 2003, and 2004 Chevrolet Monte Carlo vehicles manufactured April 7, 2003, to June 23, 2003. On May 18, 2015, GM expanded the recall to cover an additional 49,751 2004 Pontiac Grand Prix vehicles manufactured January 6, 2003, to June 25, 2004. In the affected vehicles, the valve cover gasket may leak.

ENGINE AND ENGINE COOLING:ENGINE

General Motors LLC (GM) is recalling certain model year 1998-1999 Chevrolet Lumina and Oldsmobile Intrigue, 1997-2004 Buick Regal and Pontiac Grand Prix, 2000-2004 Chevrolet Impala, and 1998-2004 Chevrolet Monte Carlo vehicles. The affected vehicles were previously repaired under recalls 08V-118, 09V-116, and 15V-201 to address the possibility that engine oil may drip onto the hot exhaust manifold.

What breaks on the 2004 Pontiac Grand Prix?

Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.

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Other Pontiac Grand Prix Years to Consider

Compare KeepScores across nearby years of the Pontiac Grand Prix. Click any year for its full report.

All Pontiac Grand Prix years ranked →Pontiac Grand Prix years to avoid →Pontiac Grand Prix common problems →

2004 Pontiac Grand Prix Alternatives

Similar class, similar year range — ranked by KeepScore.

2002 ToyotaLand Cruiser

92/100

2002 ChevroletCorvette

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Frequently Asked Questions

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