Ford Mustang (1999-2004) Service Manual: Spark Plugs
Removal and Installation
1. Remove the ignition coil-on-plug. For additional information, refer to Ignition Coil-On-Plug in this section.
2. NOTE: Use compressed air to remove any foreign material from the spark plug well before removing the spark plugs.
NOTE: If an original spark plug is used, make sure it is installed in the same cylinder from which it was taken. New spark plugs can be used in any cylinder.
Remove the RH spark plugs.

3. Remove the LH spark plugs.

4. Inspect the spark plugs. Install new spark plugs as necessary. For additional information, refer to Section.
5. Adjust the spark plug gap as necessary.

6. To install, reverse the removal procedure.
Ignition Coil-On-Plug
Material
Item
Specification
Silicone Brake Caliper Grease
and Dielectric Compound
D7AZ-19A331-A or equivalent
ESE-M1C171-
A
Removal and Installation
1. Disconnect the battery ...
Engine Emission Control
Torque Specifications
...
Other materials:
Rear Ride Height Measurement - GT and Base
Item
Description
1
Body reinforcement
2
Ride height (shortest distance)
3
Rear axle
Wheel Track
Item
Part Number
Description
1
-
Front track
2
-
Rear track
Dogtracking
Item
Part N ...
Ignition Coil-On-Plug
Material
Item
Specification
Silicone Brake Caliper Grease
and Dielectric Compound
D7AZ-19A331-A or equivalent
ESE-M1C171-
A
Removal and Installation
1. Disconnect the battery ground cable. For additional information, refer
to Section ...
Module - Daytime Running Lamps (DRL)
Removal
1. CAUTION: Electronic modules are sensitive to static electrical
charges. If exposed
to these charges, damage can result.
Disconnect the battery ground cable.
2. Remove the daytime running lamps (DRL) module and bracket assembly
(15A270).
...
