Is the 2004 Jeep Wrangler reliable?

Overall reliability is generally good for a body-on-frame 4x4, especially with the 4.0L inline-6, but long-term dependability depends heavily on rust condition, maintenance history, and front-end/steering wear.

What are the most common 2004 Jeep Wrangler problems?

Frequently reported issues include frame rust, exhaust manifold leaks on the 4.0L, oil leaks from common seals/gaskets, and steering shake (“death wobble”) caused by worn suspension/steering components or poor alignment.

Are maintenance costs high on a 2004 Wrangler?

Costs are usually moderate for routine service, but repairs can add up if you’re catching up on neglected items like suspension joints, tires, brakes, and rust-related fixes; modified Jeeps can also require more frequent wear-part replacement.

What are the best years of this generation to buy?

Many buyers target late TJ years for incremental refinements, and a well-maintained example with minimal rust is often a better choice than any specific year—service records and condition matter most.

What should I check before buying a used 2004 Jeep Wrangler?

Inspect the frame thoroughly for rust, test for steering wobble, check for oil leaks and exhaust ticking, verify 4WD engagement, and review tire wear/alignments—especially if it has a lift kit or oversized tires. For deeper details, get a complete owner’s guide with full specs, factory capacities, and the recommended maintenance schedules to keep a 2004 Jeep Wrangler running its best.

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

2004 Jeep Wrangler Reliability ReportKeepScore 72/100 · top failure points · buy or avoid

72/ 100

KeepScore

MODERATE RISK

Grade: C+

A legendary off-roader that demands meticulous pre-purchase inspection and ongoing rust prevention to truly thrive.

Full system breakdown + what I would do

Quick Facts · 2004 Jeep Wrangler

Scores 13 points below the strongest nearby year — the 2002 Jeep Wrangler earns a 85.
The system most likely to surface first: frame & body rust (critical severity).
Has 3 NHTSA recalls on record — the most notable involves the service brakes, hydraulic.

2004 Jeep Wrangler: Buy or Avoid?

The 2004 Jeep Wrangler (TJ) is a rugged, iconic off-roader that delivers unparalleled adventure, but it's not for the faint of heart. While the legendary 4.0L engine is bulletproof, prospective owners must proactively address significant risks like frame rust and steering component wear to truly enjoy this capable machine. It’s an enthusiast's choice, demanding a commitment to proper maintenance, but rewarding those who do with unmatched simplicity and go-anywhere capability.

Biggest Strengths

Indestructible 4.0L Inline-6 engine
Robust body-on-frame construction (if not rusted)
Exceptional off-road capability and aftermarket support

2004 Jeep Wrangler — Known Trouble Spots

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

Frame & Body Rustcritical

Steering & Suspension (Death Wobble)major

Engine Oil Leaks (4.0L)moderate

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

Safety Recalls on the 2004 Jeep Wrangler

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

SERVICE BRAKES, HYDRAULIC

CERTAIN AFTERMARKET BRAKE HYDRAULIC MASTER CYLINDERS SOLD AS REPLACEMENT BRAKE CYLINDERS FOR CERTAIN FORD, DAIMLERCHRYSLER, AND JEEP PASSENGER VEHICLES. THESE BRAKE CYLINDERS WERE SOLD UNDER THE BRAND NAMES OF NAPA, RAYBESTOS, AIMCO, AC DELCO, CARQUEST, BENDIX, AND WAGNER. ONLY PRODUCTS THAT WERE MANUFACTURED FROM JULY 27, 2005 THROUGH JANUARY 17, 2006 (DATE CODES 0529 THROUGH 0602) ARE SUBJECT TO THIS RECALL. WHEN SUBJECT TO VERY COLD TEMPERATURES, AN INTERNAL SEAL IN THE MASTER CYLINDER COULD LOSE FLEXIBILITY AND MAY CAUSE BRAKE FLUID TO LEAK.

FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

CERTAIN AFTERMARKET AIRTEX ELECTRIC FUEL PUMPS INSTALLED FOR USE AS REPLACEMENT EQUIPMENT FOR CERTAIN 1997-2004 JEEP WRANGLER; 1997-2001 JEEP CHEROKEE; 1997-2004 JEEP GRAND CHEROKEE; AND 2000-2003 DODGE DAKOTA VEHICLES. THE PLASTIC ELECTRICAL GROMMET CONNECTORS AT THE TOP OF THE FUEL PUMP MODULE ARE NOT COMPATIBLE WITH AUTOMOTIVE FUELS AND MAY DEGRADE CAUSING A POTENTIAL LEAK PATH FOR FUEL.

What breaks on the 2004 Jeep Wrangler?

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

OwnerKeep Passport · $499 · one-time

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Jeep Wrangler — Year-by-Year Comparison

Compare KeepScores across nearby years of the Jeep Wrangler. Click any year for its full report.

All Jeep Wrangler years ranked →Jeep Wrangler years to avoid →Jeep Wrangler common problems →

Competing 2004s Worth a Look

Similar class, similar year range — ranked by KeepScore.

2002 ChevroletSuburban

2002 JeepGrand Cherokee

62/100

2003 ChevroletBlazer

62/100

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Frequently Asked Questions

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