Ford Mustang (1999-2004) Service Manual: Frame and Mounting
Frame and Body Mounting
Torque Specifications

Frame Assembly
Underbody misalignment can affect front and rear wheel alignment, the operation of the suspension parts and drivetrain operation. Window glass cracks, door and window opening concerns, and air or water leaks at the doors are often caused by improperly tightened bolts and body misalignment.
Every structural member and outer panel is designed to offer the maximum protection in the event of a collision.
Body Misalignment Check
1. CAUTION: Do not attempt to correct any serious misalignment with one pulling/pushing operation. Damage to structure may occur.
NOTE: All body alignment measurements are made without trim and from metal to metal.
To check the body alignment, take two opposite diagonal measurements between the front, center or rear pillars. Take the measurements between reference points, such as crease lines or weld joints which are diagonally opposite each other on the two pillars being measured.
- Underbody Misalignment Check
- Front Subframe - 3.8L Engine
- Front Subframe - 4.6L (2V) Engine
- Front Subframe - 4.6L (4V) Engine
- Rear Subframe
Installation
WARNING: To reduce the risk of serious personal injury, read
and follow all warnings,
cautions and notes at the beginning of the removal procedure.
Vehicles receiving a new clockspring
1. NOT ...
Underbody Misalignment Check
Underbody Dimensions
1. Underbody dimensions tolerances are +- 3.175 mm (0.125 in). Reference
dimensions are not
controlled dimensions. Reference points are +- 4.76 mm (0.1875 in). All und ...
Other materials:
Crankshaft Main Bearing Journal - Clearance
Special Tool(s)
Plastigage
303-D031 (D81L-6002-B) or
equivalent
NOTE: Crankshaft main bearing journals must be within specifications
before checking journal
clearance.
1. Remove the crankshaft main bearing caps and crankshaft main bearing.
...
Component Tests
Idle Air Control (IAC) Valve
1. Open the hood.
2. NOTE: Key symptom is elevated idle speed while noise is occurring.
NOTE: "Snapping" the throttle can induce the noise.
Verify the condition by operating the vehicle for a short time.
3. Inspect the IAC valv ...
Steering System Symptom Definitions
Drift/Pull
Pull is a tugging sensation, felt by the hands on the steering wheel, that
must be overcome to keep the
vehicle going straight.
Drift describes what a vehicle with this condition does with hands off the
steering wheel.
A vehicle-related drift/p ...
