The 2024 Gladiator shares JT platform DNA with the JL Wrangler, inheriting some solid axle durability but also known weak points in the 3.6L Pentastar and transmission cooling systems. The EcoDiesel adds its own complexity and failure modes.
Symptoms: Sudden catastrophic knock or tick from bottom end, Metal shavings in oil during routine change, Oil pressure warning light at idle after warm-up, Misfire codes with compression loss on one or more cylinders
Fix: Complete engine replacement or rebuild; piston skirt failures and spun rod bearings are the culprits, often requiring short block replacement minimum (25-35 labor hours). Some warranty coverage if under powertrain, but out-of-pocket cases exist.
Estimated cost: $8,000-14,000
8-Speed Automatic Transmission Oil Cooler Leak
Common · medium severity
Typical onset: 30,000-70,000 mi
Symptoms: Red ATF puddle under front of vehicle, driver side, Transmission overheat warning on dash during towing or highway use, Burnt ATF smell, fluid low on dipstick check, Harsh shifting or delayed engagement when fluid runs low
Fix: Replace external oil cooler assembly and lines; cooler develops pinhole leaks or fitting cracks (4-6 labor hours). Flush and refill transmission if contamination suspected. Cooler design revised but earlier production runs are prone.
Estimated cost: $800-1,400
3.0L EcoDiesel DPF and EGR System Failures
Common · medium severity
Typical onset: 50,000-90,000 mi
Symptoms: Check engine light with P2002 (DPF efficiency) or P0401 (EGR flow), Limp mode or derate during regeneration cycles, Excessive soot buildup, failed regen cycles, DEF quality or NOx sensor codes
Fix: DPF cleaning or replacement, EGR valve and cooler service common (8-12 labor hours for DPF, 5-7 for EGR). Short trips and infrequent highway use accelerate failure. Fuel filter neglect compounds issues.
Estimated cost: $2,000-4,500
Transmission Mount Failure
Common · low severity
Typical onset: 40,000-80,000 mi
Symptoms: Clunk when shifting from park to drive or reverse, Vibration at idle, especially in gear, Drivetrain shudder during acceleration, Visible sag or torn rubber on transmission crossmember mount
Fix: Replace transmission mount and inspect adjacent crossmember bushings (1.5-2.5 labor hours). Off-road use and heavy towing accelerate wear. OEM rubber mounts softer than aftermarket polyurethane options.
Estimated cost: $250-500
Instrument Cluster Failure (Recall-Related)
Occasional · medium severity
Symptoms: Speedometer, tachometer, or fuel gauge intermittent or dead, Cluster reboots randomly while driving, Warning lights illuminate without fault codes stored, Total cluster blackout, no display or backlighting
Fix: Cluster replacement under NHTSA recall or software flash; some cases require new cluster module (2-3 labor hours). Covered under recall if VIN qualifies, otherwise $600-1,200 parts alone.
Estimated cost: $0-1,800
3.0L EcoDiesel Fuel Filter Housing Leak
Occasional · medium severity
Typical onset: 20,000-60,000 mi
Symptoms: Diesel fuel odor in cabin or under hood, Visible fuel weeping from filter head or water separator, Hard start or extended crank after sitting overnight, P0087 fuel rail pressure codes
Fix: Replace fuel filter housing assembly or O-rings/seals (2-3 labor hours). Plastic housing develops hairline cracks, especially in cold climates. Aftermarket metal housings available but pricey.
Estimated cost: $400-900
Owner tips
3.6L owners: inspect oil at EVERY fill-up for metal and keep records; early catch of bearing wear can save the engine
EcoDiesel buyers: budget for 10,000-mile fuel filter changes and weekly DEF top-offs; highway miles are your friend for DPF health
Check transmission cooler lines and fittings every oil change; catch leaks before fluid runs dangerously low
Off-roaders: upgrade to heavy-duty transmission and transfer case mounts preemptively
Capable platform with serious engine reliability concerns on the 3.6L; buy EcoDiesel only if you drive highway miles and can afford emission system upkeep, or wait for 2025+ updates with revised internals.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
Fitment notes: H8 AGM battery used on models with start-stop technology; standard models may use Group 48 AGM
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Every control module on the 2020-2026 Jeep Gladiator — where it lives, replacement time, and what it takes to program a replacement. Modules marked dealer / factory tool won't work after a part swap alone — budget for programming.
⚠️ LED/adaptive headlight systems only; requires headlight aim calibration
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
Chrysler (FCA US, LLC) is recalling certain 2021-2025 Jeep Wrangler, Wrangler 4XE, and Jeep Gladiator vehicles. The electric hydraulic power steering pump wiring may overheat and cause a vehicle fire, even when the vehicle is parked with the ignition in the "Off" position.
Consequence: A vehicle fire increases the risk of injury.
Remedy: Owners are advised to park outside and away from structures, until their vehicle is repaired. Dealers will inspect and replace the wiring and electric hydraulic power steering pump, as necessary, free of charge. Owner notification letters are expected to be mailed July 9, 2026. Owners may contact FCA US LLC customer service at 1-800-853-1403. FCA US LLC's number for this recall is 21D. The Vehicle Identification Numbers (VINs) involved in this recall will become searchable on NHTSA.gov on June 11, 2026.
Chrysler (FCA US, LLC) is recalling certain 2020-2024 Jeep Gladiator and 2018-2024 Jeep Wrangler vehicles. The instrument panel cluster may experience an internal short circuit and fail. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 101, "Controls and Displays."
Consequence: An instrument panel that fails to display critical safety information, such as the speedometer or warning lights, can increase the risk of a crash.
Remedy: Dealers will replace the instrument panel cluster, free of charge. Owner notification letters were mailed between October 3, 2024, and January 23, 2025. Owners may contact FCA customer service at 1-800-853-1403. FCA's number for this recall is 30B.
Performance
Horsepower
285hp
Torque
260lb-ft
0–60 mph
7.1sec
Quarter mile
15.4sec
Top speed
112mph
Fuel economy (EPA)
City
17mpg
Highway
22mpg
Combined
19mpg
Fuel
Regular Gasoline
Capability & size
Towing capacity
7,700lb
Payload
1,700lb
Curb weight
5,050lb
EPA class
Standard Pickup Trucks 4WD
Wiper blades
Modern JT platform Gladiator pickup. Uses standard hook attachment. No rear wiper on pickup bed configuration.
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 2024 Jeep Gladiator 3.6L V6 and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years.