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Home >> Ford >> 2002 >> Taurus SES, 3.0 S >> Repair and Diagnosis >> External Pages >> Different car >> Section 255 (Generators & Regulators -- F250-F550 Super Duty (Diesel With Dual Generators)) >> System Tests >> Test H: Battery Leakage Or Damage

Test H: Battery Leakage Or Damage

WARNING: This page is about a different car, the 2003 Ford Pickup, 2003 Ford F550 Super Duty, 2003 Ford F450 Super Duty, and 2003 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

  1. Check For Acid Leakage And Damage

    Check for acid damage to both battery harnesses and cables. If damage does not exist, go to next step. If damage exists, repair as necessary.

  2. Check Charging System For Overcharging

    Start engine and let idle. Turn all accessories off. Increase engine speed to 2000 RPM. Measure voltage between primary battery terminals. If voltage is less than 15.5 volts, go to next step. If voltage is 15.5 volts or more, perform TEST G: SYSTEM OVERCHARGES (BATTERY VOLTAGE GREATER THAN 15 VOLTS) .

  3. Check The Battery Mounting

    Turn ignition switch to LOCK position. Check mounting of both batteries. If batteries are properly mounted, go to next step. If both batteries are not properly mounted, repair as necessary.

  4. Check For Battery Contact

    Check both batteries for anything applying pressure to or rubbing against batteries. If problem does not exist, go to next step. If problem exists, repair as necessary.

  5. Check The Battery Case For Damage

    Check batteries for cracks and damage. If problem does not exist, go to next step. If problem exists, replace batteries as necessary.

  6. Check The Battery Capacity

    Test condition of batteries. See BATTERY TEST WITH DIGITAL BATTERY ANALYZER under ON-VEHICLE TESTING. If both batteries are okay, system is operating properly at this time. If either battery is defective, replace appropriate battery.
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