Service Intervals & Specifications

1999 Ford Windstar Base, Van Cargo, 3.8 4SECTION Service Intervals & Specifications
REPLACEMENT INTERVALS

Component Interval (Miles) (Regular Schedule) Interval (Miles) (Severe Duty)
Gasoline Engines
Air Filter 30,000 30,000
Coolant (1) 50,000 48,000
Fuel Filter 60,000 (2) 50,000
Oil & Filter 5000 3000
PCV Valve 60,000 60,000
Spark Plugs (3) 100,000 60,000
Transfer Case Oil 60,000 30,000
Automatic Trans. (4) 30,000 (5)
Manual Trans. 60,000 30,000
Diesel Engines
Air Filter (6) (6)
Coolant (1) 50,000 .....
Fuel Filter 30,000 15,000
Oil & Filter 5000 3,000
(1) Change engine coolant initially at 50,000 miles and every 30,000 miles thereafter.
(2) On Expedition, replace every 15,000 miles (severe duty). On Pickup, replace every 30,000 miles.
(3) On 2.5L engine or natural gas powered models, replace spark plugs every 60,000 miles.
(4) E4OD transmission has no normally scheduled fluid change requirement.
(5) Information not available at time of publication.
(6) Replace air filter when restriction gauge is in Red zone.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.