Ford Mustang (1999-2004) Service Manual: Driveline Angle
| Item | Description |
| 1 | Bottom of the frame |
| 2 | Engine crankshaft centerline |
| 3 | Engine angle |
| 4 | Driveshaft and coupling shaft centerline |
| 5 | Driveshaft and coupling shaft angle |
| 6 | Rear axle pinion centerline |
| 7 | Axle pinion angle |
An incorrect driveline (pinion) angle can often be detected by the driving condition in which the vibration occurs.
- A vibration during coastdown from 72 to 56 km/h (45 to 35 mph) is often caused by an excessive U-joint angle at the axle (pinion nose downward).
- A vibration during acceleration, from 56 to 72 km/h (35 to 45 mph) may indicate an excessive Ujoint angle at the axle (pinion nose upward).
When these conditions exist, check the driveline angles as described in the General Procedures portion of this section.
If the tires and driveline angle are not the cause, carry out the NVH tests to determine whether the concern is caused by a condition in the axle.
Universal Joint (U-Joint) Wear
Place the vehicle on a frame hoist and rotate the driveshaft by hand. Check for rough operation or seized U-joints. Install a new U-joint if it shows signs of seizure, excessive wear, or incorrect seating.
Analysis of Vibration
WARNING: A vehicle equipped with a Traction-Lok differential will
always have both
wheels driving. If only one wheel is raised off the floor and the rear axle is
driven by the engine,
the wheel on t ...
Wheel Hub or Axle Flange Bolt Circle Runout
NOTE: The brake discs must be removed to carry out all runout
measurements.
1. Position the special tool perpendicular to the wheel hub or axle flange bolt,
as close to the hub
or flange face as po ...
Other materials:
Supercharger Cooling (Diagnosis and Testing)
Special Tool(s)
Pressure Test Kit
014-R1072 or equivalent
Battery/Antifreeze Tester
014-R1060 or equivalent
Material
Item
Specification
Motorcraft Premium
Engine Coolant
VC-4-A (in Oregon
VC-5, in Canada
C ...
Communication Circuit Wiring Repair
Special Tool(s)
Heat Gun
107-R0300 or equivalent
1. Disconnect the battery ground cable. For additional information, refer to
Section.
2. Strip the wires.
3. NOTE: Use rosin core mildly activated (RMA) solder, not acid core
solder.
Solder ...
Pinpoint Tests
The pinpoint tests are a step-by-step diagnostic process designed to
determine the cause of a condition. It may not always be necessary to follow a
pinpoint test to its conclusion. Carry out only the
steps necessary to correct the condition. Then, test the s ...
