The 1990 Plymouth Voyager was Chrysler's first-generation minivan with the newer 3.3L V6 just introduced; it's known for revolutionary packaging but plagued by transmission fragility and head gasket issues on the 3.0L Mitsubishi V6. The 2.5L four-cylinder is slow but more durable.
A604 (41TE) Automatic Transmission Failure
Common · high severityTypical onset: 80,000-140,000 mi
Symptoms: Harsh or delayed shifts, especially 2-3 upshift, Slipping in overdrive under load, No forward movement in any gear (complete failure), Transmission overheating, burnt fluid smell
Fix: This four-speed electronic transmission was Chrysler's first computer-controlled unit and notoriously unreliable. Internal clutch pack failure and valve body issues are common. Rebuild requires 8-12 labor hours; many shops recommend reman unit due to complexity. External oil cooler often clogged, accelerating failure—should always be replaced during rebuild.
Estimated cost: $1,800-3,200
3.0L V6 Head Gasket Failure
Common · high severityTypical onset: 60,000-110,000 mi
Symptoms: White smoke from exhaust on cold start, Coolant loss with no visible leaks, Overheating, especially on highway, Milky oil on dipstick or oil cap (advanced cases), Misfires and rough idle
Fix: The Mitsubishi-sourced 3.0L V6 has chronic head gasket issues due to inadequate head bolt torque and deck warping. Both heads typically need machining or replacement. Job requires 10-14 hours including timing belt service (mandatory while in there). Water pump, thermostat, and all coolant hoses should be replaced simultaneously.
Estimated cost: $1,500-2,800
Front Engine Mount Collapse
Common · medium severityTypical onset: 70,000-120,000 mi
Symptoms: Heavy clunk when shifting into drive or reverse, Engine rocks visibly during acceleration, Vibration through steering wheel at idle, Difficulty engaging first gear (manual trans models)
Fix: Transverse engine orientation puts enormous stress on the front roll-stop mount. Failure allows engine to shift excessively, stressing CV axles and exhaust. Right-side mount also commonly fails. Replace both front mounts together—2.5-3.5 hours labor. Inspect transmission mount simultaneously as these often fail in tandem.
Estimated cost: $280-450
Liftgate Latch Failure and Water Intrusion
Common · low severitySymptoms: Liftgate won't latch securely, pops open while driving, Interior latch release cable breaks, Water pools in spare tire well, Musty smell, wet carpet in rear cargo area, Rust developing at liftgate lower corners
Fix: Two NHTSA recalls addressed latch failures, but even updated mechanisms fail. Plastic components become brittle. Liftgate weatherstripping also deteriorates, allowing rain into cargo area and eventually rusting floor. Latch replacement is 1-1.5 hours; complete weatherstrip renewal adds another hour. Check rear floor for rust perforation before purchase.
Estimated cost: $150-350
Fuel Pump Failure
Occasional · high severityTypical onset: 90,000-150,000 mi
Symptoms: No-start condition with full tank, Intermittent stalling at operating temperature, Loss of power on acceleration or uphill, Whining noise from rear of vehicle
Fix: In-tank electric fuel pump fails due to contamination or age. Tank must be dropped for access (no hatch in floor)—4-5 hours labor. Replace fuel filter and strainer sock simultaneously. Running tank below 1/4 regularly accelerates pump wear due to inadequate cooling. This generation has no access panel, making it labor-intensive.
Estimated cost: $450-750
Power Steering Pump Leak and Failure
Occasional · medium severityTypical onset: 80,000-130,000 mi
Symptoms: Whining or groaning when turning, especially cold, Fluid dripping from front of engine, Heavy steering effort, particularly at low speeds, Squealing belt when starting or turning sharply
Fix: Pump shaft seals leak and contaminate serpentine belt. High-pressure hose also commonly fails at crimp fittings. Pump replacement is 2-3 hours; recommend replacing pressure hose and flushing system simultaneously. Rack-and-pinion seals also leak but are less critical. Check fluid level weekly on high-mileage examples.
Estimated cost: $320-580
Distributor Cap, Rotor, and Ignition Module Failure
Occasional · medium severitySymptoms: No-start when hot, starts fine when cool, Intermittent stalling at idle or cruise, Rough idle, hesitation on acceleration, Misfires in damp weather
Fix: Hall-effect pickup and ignition module inside distributor fail from heat cycling. Cap and rotor carbon tracking is common due to high-mileage service neglect. Complete distributor overhaul (cap, rotor, module, pickup) takes 1.5-2 hours. Carry spare module and cap/rotor in glovebox for roadside repair—common highway breakdown cause.
Estimated cost: $180-380
Buy only with documented transmission rebuild and if equipped with the 2.5L four-cylinder or 3.3L V6—avoid the troublesome 3.0L at all costs unless head gaskets are recently done with receipts.
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.