* Engine type: The 2004 Explorer came with several engine options (e.g., 4.0L V6, 4.6L V8). Maintenance needs slightly vary between them.
* Driving conditions: Severe driving conditions (frequent stop-and-go traffic, dusty roads, extreme temperatures) require more frequent maintenance.
* Owner's manual: The most accurate and detailed schedule is in your vehicle's owner's manual. This is the *primary* source.
However, a general guideline for a 2004 Ford Explorer would include (but isn't limited to) the following, which should be verified and adjusted based on your owner's manual:
Regular Maintenance (every 3,000 - 5,000 miles, or as indicated in your owner's manual):
* Oil and filter change: This is the most crucial regular maintenance. Use the recommended oil weight specified in your owner's manual.
* Tire pressure check: Maintain proper inflation for optimal fuel economy and tire life.
* Visual inspection: Check for leaks, worn parts, and anything unusual.
Scheduled Maintenance (at specific mileage intervals, consult your owner's manual):
* Air filter replacement: A clogged air filter restricts airflow and reduces engine performance.
* Fuel filter replacement: A dirty fuel filter can restrict fuel flow and damage the engine.
* Transmission fluid change: Automatic transmission fluid needs periodic replacement.
* Coolant flush and fill: Prevent overheating and corrosion within the cooling system.
* Brake fluid flush: Remove moisture and contaminants from the brake system.
* Spark plug replacement: Depending on the engine, this is typically done at higher mileage intervals.
* Battery check and replacement: Battery life is limited and needs periodic testing.
* Serpentine belt replacement: Check for cracks and wear.
* Drive belt and hoses inspection: Check for cracking, wear, and leaks.
* Lubrication: Grease fittings on suspension components, etc., according to the owner's manual.
Severe Service: If you frequently tow, drive in dusty conditions, or experience extreme temperatures, refer to the "Severe Service" section of your owner's manual for a more frequent maintenance schedule.
Important Note: This is a *general* guideline. Always refer to your 2004 Ford Explorer's owner's manual for the precise maintenance schedule specific to your vehicle's engine and your driving conditions. Ignoring recommended maintenance can lead to costly repairs down the line. If you don't have your owner's manual, you can often find a PDF version online through Ford's website or a reputable automotive parts website.
