2003 FORD MUSTANG battery

SPECIFICATIONS
SECTION 414-
01: Battery, Mounting and Cables 2003 Mustang Workshop Manual General Specifications
Item Specification
Manufacturer Motorcraft
Voltage 12 volt
Amps at -
17.7°C (0°F) cold crank 540
Minutes—
reserve capacity 100
Amps/hrs.—20 hour rate 55
Location Left front of engine compartment
Torque Specifications Description Nm lb-
ft lb-
in Battery cable harness front support bracket nut 25 18 —
Battery cable terminal bolts 7 — 62
Battery hold-
down bolt 10 — 89
Battery junction box nut 20 15 —
Battery tray bolts 11 8 —
Front lower cable harness bracket nuts 11 8 —
Generator B+ cable nut 8 — 71
Battery cable bracket nut (left upper) 25 18 —
Battery ground cable nut (engine block) 25 18 —
Battery ground cable at the radiator support bolt 12 9 —
Positive battery cable nut (starter solenoid) 12 9 —
Positive battery wire nut (starter solenoid) 6 — 53
Right engine mount cable harness bracket nut 25 18 — Klj . 1 ba
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DESCRIPTION AND OPERATION
Battery and Cables
Vehicles are equipped with a 12 volt maintenance-
free battery that contains a built-in hydrometer. The
hydrometer eye indication is as follows:
zA green dot means the battery is OK.
z A yellow dot, red dot, or when the green dot is not visible, means the battery needs to be
charged.
WARNING: Batteries normally produce explosive gases which can cause personal injury.
Therefore, do not allow flames, sparks or lighted substances to come near the battery. When
charging or working near a battery, always shield your face and protect your eyes. Always
provide ventilation.
WARNING: When lifting a battery, excessive pressure on the end walls could cause acid
to leak out through the vent caps, resulting in personal injury, damage to the vehicle or the
battery.
WARNING: Keep out of the reach of children. Batteries contain sulfuric acid. Avoid
contact with skin, eyes, or clothing. Also, shield your eyes when working near the battery to
protect against possible splashing of the acid solution. In case of acid contact with skin or
eyes, flush immediately with water for a minimum of 15 minutes and get prompt medical
attention. If acid is swallowed, call a physician immediately.
Ford Motor Company strongly recommends that lead- acid batteries be returned to an authorized
recycling facility for disposal. SECTION 414-
01: Battery, Mounting and Cables 2003 Mustang Workshop Manual Klj . 1 ba
22003 Mustang Workshop Manual
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DIAGNOSIS AND TESTING
Battery
Inspection and Verification
1. Verify the customer concern by operating the system.
2. Visually inspect for obvious signs of mechanical or electrical damage.
3. If an obvious cause for a concern is found, correct the cause before proceeding to the next step.
4. If the fault is not visually evident, proceed to the pinpoint test.
Pinpoint Tests
PINPOINT TEST A: BATTERY CONDITION TEST SECTION 414-
01: Battery, Mounting and Cables 2003 Mustang Workshop Manual Special Tool(s)
Micro 490 Digital Battery
Analyzer
162-
00004
Visual Inspection Chart Mechanical Electrical
z
Battery
z Battery mounting z
Battery cables
z Battery posts Test Step Result / Action to Take
A1 TEST BATTERY CONDITION
NOTE:
No battery with a red test- eye should be
replaced. The red eye only means the battery is
discharged, not necessarily defective. NOTE: Failure
to fully charge the battery before retesting may cause
false readings.
z Verify the battery condition using the Battery
Analyzer.
z Is the battery OK? Yes
Does the meter read, GOOD
BATTERY? RETURN the battery
to service. REFER to
Section 414 -
00 .
Does the meter read, GOOD-
RECHARGE? CHARGE the
battery and RETURN to service.
REFER to Section 414 - 00 .
Does the meter read, CHARGE &
RETEST? Fully CHARGE the
battery and RETEST. Klj . 1 ba
22003 Mustang Workshop Manual
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No
Does the meter read, REPLACE
BATTERY? INSTALL a new
battery.
Does the meter read, BAD CELL-
REPLACE? INSTALL a new
battery. Klj . 2 ba
22003 Mustang Workshop Manual
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GENERAL PROCEDURES
Battery Disconnect
WARNING: Batteries normally produce explosive gases which can cause personal injury.
Therefore, do not allow flames, sparks or lighted substances to come near the battery, always
shield your face and protect your eyes. Always provide ventilation. Failure to follow these
instructions may result in personal injury.
WARNING: To avoid accidental deployment and possible injury, the backup power supply
must be depleted before repairing or installing any front or side air bag supplemental restraint
system (SRS) components and before repairing, installing, adjusting or striking components
near the front or side air bag sensors, such as doors, instrument panel, console, door latches,
strikers, seats and hood latches. Failure to follow these procedures may result in personal
injury.
Refer to the appropriate vehicle shop manual to determine location of the front air bag sensors.
To deplete the backup power supply energy, disconnect the battery ground cable and wait at
least one minute. Be sure to disconnect auxiliary batteries and power supplies (if equipped).
Failure to follow these instructions may result in personal injury.
WARNING: When lifting a battery, excessive pressure on the end walls could cause acid
to spew through the vent caps, resulting in personal injury. Lift with a battery carrier or with
your hands on opposite corners. Failure to follow these instructions may result in personal
injury.
WARNING: Keep out of the reach of children. Batteries contain sulfuric acid. Avoid
contact with skin, eyes or clothing. Also, shield your eyes when working near the battery to
protect against possible splashing of the acid solution. In case of acid contact with the skin or
eyes, flush immediately with water for a minimum of 15 minutes and get prompt medical
attention. If acid is swallowed, call a physician immediately. Failure to follow these instructions
may result in personal injury.
1. NOTE: When the battery is disconnected and reconnected, some abnormal drive symptoms
may occur while the vehicle relearns its adaptive strategy. The vehicle may need to be driven to
relearn its strategy.
Disconnect the battery ground cable.
2. Disconnect the positive battery cable.
3. To install, reverse the removal procedure.
SECTION 414-
01: Battery, Mounting and Cables 2003 Mustang Workshop Manual Klj . 1 ba
22003 Mustang Workshop Manual
18. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_5108/S3B~us~en~ ...

REMOVAL AND INSTALLATION
Battery
Removal and Installation
WARNING: Batteries normally produce explosive gases which can cause personal injury.
Therefore, do not allow flames, sparks or lighted substances to come near the battery. When
charging or working near a battery, always shield your face and protect your eyes. Always
provide ventilation. Failure to follow these instructions may result in personal injury.
WARNING: Keep out of the reach of children. Batteries contain sulfuric acid. Avoid
contact with skin, eyes, or clothing. Also, shield your eyes when working near the battery to
protect against possible splashing of the acid solution. In case of acid contact with skin or
eyes, flush immediately with water for a minimum of 15 minutes and get prompt medical
attention. If acid is swallowed, call a physician immediately. Failure to follow these instructions
may result in personal injury.
1. Loosen the bolt and disconnect the battery ground cable.
2. Loosen the bolt and disconnect the positive battery cable.
3. Remove the bolt and the battery hold- down.
SECTION 414-
01: Battery, Mounting and Cables 2003 Mustang Workshop Manual Klj . 1 ba
32003 Mustang Workshop Manual
18. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_5108/S3B~us~en~ ...

4.
WARNING: When lifting a battery, excessive pressure on the end walls may cause
acid to leak out through the vent caps, resulting in personal injury, damage to the vehicle
or the battery. Failure to follow these instructions may result in personal injury.
Remove the battery by lifting from the corners of the battery.
5. NOTE: When the battery is disconnected and reconnected, some abnormal drive symptoms
may occur while the vehicle relearns its adaptive strategy. The vehicle needs to be driven to
relearn the strategy.
To install, reverse the removal procedure. Klj . 2 ba
32003 Mustang Workshop Manual
18. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_5108/S3B~us~en~ ...

REMOVAL AND INSTALLATION
Battery Tray
Removal and Installation
WARNING: Batteries normally produce explosive gases which can cause personal injury.
Therefore, do not allow flames, sparks or lighted substances to come near the battery. When
charging or working near a battery, always shield your face and protect your eyes. Always
provide ventilation. Failure to follow these instructions may result in personal injury.
WARNING: Keep out of the reach of children. Batteries contain sulfuric acid. Avoid
contact with skin, eyes, or clothing. Also, shield your eyes when working near the battery to
protect against possible splashing of the acid solution. In case of acid contact with skin or
eyes, flush immediately with water for a minimum of 15 minutes and get prompt medical
attention. If acid is swallowed, call a physician immediately. Failure to follow these instructions
may result in personal injury.
1. Remove the battery. For additional information, refer to Battery in this section.
2. Remove the battery tray bolts and washers.
3. Remove the battery tray.
4. NOTE: When the battery is disconnected and reconnected, some abnormal drive symptoms
may occur while the vehicle relearns its adaptive strategy. The vehicle needs to be driven to
relearn the strategy.
To install, reverse the removal procedure.
SECTION 414-
01: Battery, Mounting and Cables 2003 Mustang Workshop Manual Klj . 1 ba
22003 Mustang Workshop Manual
18. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_5108/S3B~us~en~ ...