1998 Ford Expedition Owner Guide 1st Printing - Page 16

Instrumentation Battery voltage gauge This gauge shows the battery voltage when the ignition is in the ON position. If the pointer moves and stays outside the normal operating range (as indicated), have the vehicle's electrical system checked as soon as possible. 18 8 Engine oil pressure gauge This shows the engine oil pressure in the system. Sufficient pressure exists as long as the needle remains in the normal range (the area between the "H" and "L"). If the gauge indicates low pressure, switch off the engine immediately. Check the oil level. Add oil if needed (refer to Checking and adding engine oil in the Maintenance and care chapter). If the oil level is correct, have your vehicle checked at your dealership or by a qualified technician. TRIP COMPUTER The trip computer tells you about the condition of your vehicle through a constant monitor of vehicle systems. You may select display features on the trip computer for a display of status. The appearance of your vehicle's trip computer may differ 16 H L