The 2000 Dakota is a solid mid-size truck hampered by transmission weakness and front-end wear. The 3.9L V6 and 4.7L V8 are generally reliable, but the 46RE/545RFE automatics are the platform's Achilles heel.
Automatic Transmission Failure (46RE/545RFE)
Common · high severityTypical onset: 80,000-140,000 mi
Symptoms: Delayed engagement into Drive or Reverse, Harsh 2-3 shift or slipping under load, Transmission overheating, burnt fluid smell, Complete loss of forward gears
Fix: Rebuild requires 8-12 hours labor; often includes overdrive solenoid pack, clutch packs, and governor pressure sensor. Cooler line replacement critical to prevent repeat failures. External cooler highly recommended.
Estimated cost: $1,800-3,200
Plenum Gasket Failure (3.9L V6 / 5.2L/5.9L V8)
Common · medium severityTypical onset: 60,000-120,000 mi
Symptoms: Rough idle, stumbling on acceleration, Oil consumption without visible leaks, Pooled oil in intake manifold valley, Check engine light with lean codes
Fix: Intake manifold removal required; 4-6 hours labor. Use updated Hughes Engines or Fel-Pro gasket, NOT factory Mopar part. Often find oil-soaked injectors needing cleaning.
Estimated cost: $450-850
Front Upper Ball Joint Separation
Common · high severityTypical onset: 70,000-110,000 mi
Symptoms: Clunking over bumps, especially when turning, Wandering steering, pulls to one side, Uneven tire wear on inside edge, Visible play when prying on wheel at 12-6 o'clock
Fix: Subject to recall but many missed the window. Replace both uppers as a pair; 3-4 hours labor. Use Moog K7397 or equivalent quality — cheap parts fail in 20k miles. Alignment mandatory after.
Estimated cost: $400-700
Brake Line Corrosion and Failure
Occasional · high severitySymptoms: Soft or spongy brake pedal, Visible rust perforation on steel lines near rear axle, Brake fluid leaking at frame rail routing, Pedal goes to floor under hard braking
Fix: Salt-belt trucks see catastrophic line rust. Full brake line replacement (all four corners) runs 5-7 hours with pre-fabricated kit. Do NOT patch — replace the entire system when one section fails.
Estimated cost: $600-1,100
Fuel Pump Failure
Occasional · medium severityTypical onset: 90,000-150,000 mi
Symptoms: No-start or extended cranking when hot, Stalling at idle after highway driving, Sputtering under acceleration, loss of power, Fuel pressure below 49 psi at key-on
Fix: In-tank pump; bed removal makes job easier (2.5 hours) vs dropping tank (4 hours). Replace strainer and check filler neck for rust. Mopar or Bosch pumps only — aftermarket junk fails in months.
Estimated cost: $450-750
Crankshaft Position Sensor Intermittent
Common · medium severityTypical onset: 80,000-140,000 mi
Symptoms: Random no-start, cranks but won't fire, Stalling while driving with immediate restart ability, No check engine light, no codes stored, Heat-related — fails hot, works when cool
Fix: Located at bellhousing, 0.5-1 hour labor. Classic Mopar problem — sensor windings break down with heat cycling. Keep a spare in the glovebox; it's a roadside-fixable part with basic tools.
Estimated cost: $80-180
Dashboard Cracking and Warping
Common · low severitySymptoms: Horizontal cracks above instrument cluster, Warping near defroster vents, UV degradation makes plastic brittle, Affects resale value and windshield seal integrity
Fix: Cosmetic but universal on sun-belt trucks. Aftermarket dash covers are $100-200. Full dash replacement requires complete interior removal (12+ hours) and is cost-prohibitive. Accept it or cover it.
Estimated cost: $150-300
Buy the 3.9L V6 or 4.7L V8 if the transmission has been rebuilt or shows clean fluid and no slip — otherwise budget $2k-3k for inevitable trans work within a year.
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.