1999 FORD WINDSTAR

Typical onset: 80,000-130,000 mi

Symptoms: Harsh or delayed shifting between gears, especially 2nd to 3rd, Slipping under acceleration or complete loss of forward gears, Whining or grinding noises from transmission, Burnt transmission fluid smell, dark or metallic fluid on dipstick

Fix: The 4-speed automatic is notoriously weak in these vans. Internal clutch packs and planetary gearsets fail. Rebuild runs 12-16 hours labor, but many shops won't touch them due to high re-failure rates. Remanufactured unit swap is more reliable. Transmission cooler lines frequently leak or clog, accelerating failure.

Estimated cost: $2,200-3,800

Typical onset: 90,000-150,000 mi

Symptoms: White smoke from exhaust, especially on cold start, Coolant loss with no visible external leaks, Overheating or fluctuating temperature gauge, Milky oil on dipstick or oil cap, rough idle

Fix: The 3.8L Essex engine has weak head gasket design prone to coolant seepage into cylinders. Requires both heads removed, resurfaced if warped (common), new gaskets, and timing chain/guide inspection. 14-18 hours labor. The 3.0L Vulcan is significantly more reliable in this regard.

Estimated cost: $1,800-2,800

Typical onset: 100,000-180,000 mi

Symptoms: Grinding, humming, or howling noise from rear that changes with speed, Visible rust perforation around rear axle mounting points, Clunking on acceleration or deceleration, Rear end sag or uneven ride height

Fix: Rear axle beam and mounting brackets rust through in salt states, leading to structural failure (multiple recalls). Wheel bearings pressed into the beam also fail. Full axle assembly replacement is 4-6 hours. Inspect thoroughly on any used purchase—this is a safety-critical failure that can cause wheel separation.

Estimated cost: $800-1,500

Typical onset: 70,000-120,000 mi

Symptoms: Coolant puddle under front of engine, especially after overnight, Rough idle or hesitation, possible misfire codes, Sweet coolant smell from engine bay, Gradual coolant loss requiring frequent top-offs

Fix: Plastic intake manifold develops cracks, and lower gaskets fail allowing coolant into oil or external leaks. Manifold removal required, 5-7 hours labor. Often done alongside thermostat and hoses. Can cause engine damage if ignored and run low on coolant.

Estimated cost: $600-1,100

Typical onset: 80,000-140,000 mi

Symptoms: Clunking over bumps from front end, Steering wander or loose feeling at highway speeds, Uneven tire wear on inside or outside edges, Vehicle pulls to one side after hitting bumps

Fix: Front lower control arm bushings deteriorate, causing alignment shift and handling issues. Recall addressed some front control arm failures. Replacement requires pressing new bushings or installing complete control arms. 3-4 hours for both sides, alignment mandatory after.

Estimated cost: $500-850

Typical onset: 100,000-160,000 mi

Symptoms: Severe vibration at idle that smooths out at higher RPM, Visible wobble of crankshaft pulley when engine running, Serpentine belt wear or repeated belt failures, Squealing or chirping from front of engine

Fix: Rubber isolator in harmonic balancer separates, causing crankshaft pulley to wobble. Can damage crankshaft nose or trigger timing chain issues if the balancer comes apart. Replacement is 2-3 hours, requires special puller tool. Not uncommon to find balancer bolts loose or missing.

Estimated cost: $350-600