Ford Mustang (1999-2004) Service Manual: 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:
- A green dot means the battery is OK.
- 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.

Battery, Mounting and Cables
General Specifications
Torque Specifications
...
Battery (Diagnosis and Testing)
Special Tool(s)
Micro 490 Digital Battery
Analyzer
162-00004
Inspection and Verification
1. Verify the customer concern by operating the system.
2. Visually inspect for obvious ...
Other materials:
Economical driving
Fuel economy is affected by several things, such as how you drive, the
conditions you drive under and how you maintain your vehicle.
There are some things to keep in mind that may improve your fuel
economy:
• Accelerate and slow down in a smooth, moderate f ...
Spark Plugs
Special Tool(s)
Remover, Spark Plug Wire
303-106 (T74P-6666A)
Material
Item
Specification
Silicone Brake Caliper Grease
and Dielectric Compound
D7AZ-19A331-A or equivalent
ESE-M1C171-
A
Removal and Installation
CAUTION: ...
Anti-Theft - Passive Anti-Theft System (PATS) (Description and Operation)
The passive anti-theft system (PATS) contains the following components:
theft indicator
encoded ignition key
transceiver module
instrument cluster
powertrain control module (PCM)
standard corporate protocol (SCP) communication network
The PATS uses rad ...
