1998 DODGE DURANGO

5.9L V84WDAUTOMATICgas
5-Year Cost of Ownership
$8,356 maintenance + known platform issues
~$1,671/yr · 140¢/mile equivalent · $5,159 maintenance + $2,497 expected platform issues
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Common Problems & Known Issues

The first-gen Durango (1998-2003) was Dodge's body-on-frame SUV sharing DNA with the Dakota pickup. Solid axles front and rear make it tough, but cooling system and transmission weaknesses plague high-mileage examples, especially V8 models.

Transmission Overheating & Cooler Line Failure

Common · high severity
Typical onset: 80,000-140,000 mi
Symptoms: Burnt ATF smell, dark or varnished fluid, Harsh 2-3 shifts or slipping under load, Cooler lines rusting through at radiator connections, leaking ATF
Fix: Replace transmission oil cooler and lines (2-3 hrs labor), flush system. If internal damage occurred, rebuild or replace 46RE/45RFE transmission (12-16 hrs labor). Cooler line rust is endemic; inspect every oil change.
Estimated cost: $400-800 for cooler/lines; $2,200-3,800 for transmission rebuild

Plenum Plate Gasket Failure (3.9L & 5.2L Magnum V8s)

Common · medium severity
Typical onset: 60,000-120,000 mi
Symptoms: Coolant consumption with no visible leak, White smoke on startup, sweet smell in oil, Misfires on multiple cylinders, rough idle
Fix: Remove intake plenum, replace lower gasket and often intake manifold gasket set (5-7 hrs labor). Magnum engines have coolant passages under the plenum; gasket deteriorates and dumps coolant into crankcase or cylinders. Hughes Engines and Fel-Pro make updated gaskets.
Estimated cost: $600-1,100

Crankshaft Position Sensor Failure

Common · high severity
Typical onset: 70,000-150,000 mi
Symptoms: Intermittent stalling, usually hot, restarts after cooling, No-start with cranking but no spark or fuel pulse, Check engine light with P0320 or P0340 codes
Fix: Replace crank position sensor at bellhousing (0.5-1 hr labor). Heat from exhaust and transmission causes premature failure. Carry a spare in the glove box on high-mileage rigs; it's a 10-minute roadside fix if you have a 10mm socket.
Estimated cost: $120-220

Front Ball Joint Wear

Common · medium severity
Typical onset: 60,000-100,000 mi
Symptoms: Clunking over bumps, wandering steering, Uneven or cupped tire wear on inside edge, Play felt when prying on tire at 12/6 o'clock
Fix: Replace upper and lower ball joints, both sides (4-6 hrs labor). Dana 44 front axle uses press-in joints; uppers fail more often but do both sides together. Alignment required afterward. Moog or Spicer quality; avoid cheap offshore units.
Estimated cost: $650-1,100

Exhaust Manifold Cracking (5.2L & 5.9L)

Occasional · low severity
Typical onset: 90,000-180,000 mi
Symptoms: Ticking or tapping noise on cold start, fades when warm, Exhaust smell in cabin or under hood, Visible cracks between ports on cast-iron manifold
Fix: Replace cracked manifold(s) and gaskets (3-5 hrs labor per side). Passenger side more common due to steering shaft clearance and heat retention. Dorman replacements available but OE Mopar or used OEM preferred for longevity.
Estimated cost: $450-850 per side

Fuel Pump Failure

Occasional · high severity
Typical onset: 100,000-160,000 mi
Symptoms: Stalling or stumbling under acceleration, Long crank time, especially after sitting overnight, Whining noise from tank area before failure
Fix: Drop 25-gallon tank, replace fuel pump module and strainer (2-3 hrs labor). Tank straps rust in salt states; add 0.5-1 hr and parts if corroded. Run tank low before job to save your back. Use OE Mopar or Bosch pump; avoid no-name eBay units.
Estimated cost: $500-800

HVAC Blend Door Failure

Occasional · low severity
Symptoms: Heat or A/C works only on one side or not at all, Clicking or grinding noise from dash when adjusting temp, Air blows cold in heat mode or vice versa
Fix: Plastic blend door actuator or door itself breaks. Heater box removal requires full dash disassembly (8-12 hrs labor). Some techs cut access holes behind glove box for door repair (4-6 hrs), but it's a band-aid. Aftermarket metal door kits available from HVAC specialty shops.
Estimated cost: $800-1,600 depending on access method
Owner tips
  • Flush cooling system every 30k and use Zerex G-05 (gold) coolant—Magnum engines are picky about inhibitor chemistry
  • Change transmission fluid and filter every 30-40k, install auxiliary cooler if towing regularly
  • Grease front driveshaft slip yoke every oil change to prevent clunk and wear
  • Inspect frame rails and rear spring hangers for rust if in salt belt—structural rot kills these before mechanical failure
  • Keep a spare crank position sensor in the vehicle after 100k miles
Buy one if you need towing capacity and can wrench—they're tough trucks when maintained, but nickel-and-dime issues pile up fast on neglected examples, especially transmissions.
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.
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