engine FORD MUSTANG 2003 Workshop Manual

Component Tests
Grid Wire Test
1. Using a bright lamp inside the vehicle, inspect the wire grid from the exterior. A broken grid wire will appear as a brown spot.
2. Run the engine at idle. Set the rear window defrost switch to ON. The indicator light should come on.
3. Working from the interior of the vehicle with a voltmeter, contact the broad red- brown stripes of
the rear glass window positive lead to battery side and negative lead to ground side. The meter
should read 10- 13 volts. A lower voltage reading indicates a loose ground connection.
4. Contact a good ground point with the negative lead of the meter. The voltage reading should not differ.
5. With the negative lead of the meter grounded, touch each grid line of the heated rear window glass at its midpoint with the positive lead. A reading of approximately 6 volts indicates that the
line is good. A reading of zero volts indicates that the line is broken between the midpoint and
the B+ side of the grid line. A reading of 12 volts indicates that the circuit is broken between the
midpoint of the grid line and ground. z
Is the voltage greater than 10 volts? I4 CHECK THE ICM FOR CORRECT OPERATION
z
Disconnect all ICM connectors.
z Check for:
zcorrosion
z pushed- out pins
z Connect all ICM connectors and make sure they seat
correctly.
z Operate the system and verify the concern is still
present.
z Is the concern still present? Yes
INSTALL a new ICM. REFER
to Section 413
- 01 . CLEAR the
DTCs. REPEAT the self-test.
No
The system is operating
correctly at this time. Concern
may have been caused by a
loose or corroded connector.
CLEAR the DTCs. REPEAT
the self- test. Klj . 31 ba
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REMOVAL AND INSTALLATION
Rear Bumper
Removal and Installation
All vehicles
1. Remove the rear bumper cover. For additional information, refer to Rear Bumper Cover in this
section.
2. Remove the rear bumper cover isolator.
Vehicles with 4.6L engines
3. Remove the bolts and the exhaust outlet pipe bumper bracket.
All vehicles 4. Remove the rear bumper brace and tongue bolts.
5. Remove the bolts and the rear bumper.
SECTION 501-
19: Bumpers 2003 Mustang Workshop Manual Klj . 1 ba
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SPECIFICATIONS
SECTION 502-
00: Frame and Body Mounting 2003 Mustang Workshop Manual Torque Specifications
Description Nm lb-
ft Engine mount nuts (3.8L engine) 115 85
Engine mount nuts (4.6L engine) 150 111
Front subframe lower bolts 90 66
Front subframe upper bolts 115 85
Front subframe brace bolts 41 30
Front subframe support, front and rear outboard bolts (convertible vehicles only) 63 46
Front subframe support, rear inboard bolts (convertible vehicles only) 30 22
HEGO connector bracket nut 47 35
Rear subframe bolts 103 76
Transmission support insulator to transmission extension housing bolts 70 52
Transmission support insulator-
to-rear engine support nut 70 52
Transmission support crossmember to transmission support member through bolts and
nuts 63 46 Klj . 1 ba
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REMOVAL AND INSTALLATION
Front Subframe —
3.8L Engine
Removal and Installation
All vehicles 1. Remove the steering gear. For additional information, refer to Section 211 - 02 .
2. Remove the lower control arms. For additional information, refer to Section 204 - 01 .
Vehicles with convertible top
3. Remove the front subframe support. For additional information, refer to Subframe Support —
Convertible in this section.
Vehicles with hard top
4. Remove the front subframe brace. zRemove the bolts.
All vehicles 5. Lower the vehicle.
SECTION 502-
00: Frame and Body Mounting 2003 Mustang Workshop Manual Special Tool(s)
3-
Bar Engine Support Kit
303- F072 Lifting Bracket Set, Engine
303-
D095 (D94L-6001- A) (014-
00792) Klj . 1 ba
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6. Install the special tool.
7. Install the special tool.
8. Install the special tool.
9. Raise and support the vehicle.
10. Remove the LH engine mount nut. Klj . 2 ba
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11. Remove the RH engine mount nut.
12. Lower the vehicle.
13. Using the special tool, raise and support the engine.
14. Raise the vehicle.
15. Support the front subframe.
16. Remove the four front subframe lower bolts. Klj . 3 ba
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REMOVAL AND INSTALLATION
Front Subframe —
4.6L (2V) Engine
Removal and Installation
All vehicles 1. Remove the steering gear. For additional information, refer to Section 211 - 02 .
2. Remove the lower control arms. For additional information, refer to Section 204 - 01 .
Vehicles with convertible top
3. Remove the front subframe support. For additional information, refer to Subframe Support — Convertible in this section
Vehicles with hard top
4. Remove the front subframe brace. zRemove the bolts
All vehicles 5. Lower the vehicle.
SECTION 502-
00: Frame and Body Mounting 2003 Mustang Workshop Manual Special Tool(s)
Support Bar, Engine
303-
290- A Lifting Bracket, Engine
303-
D088 (D93P-6001- A2) Klj . 1 ba
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6. Install the special tool.
7. Install the special tool.
8. Raise and support the vehicle.
9. Remove the two engine mount nuts.
10. Lower the vehicle.
11. Using the special tool, raise and support the engine. Klj . 2 ba
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REMOVAL AND INSTALLATION
Front Subframe —
4.6L (4V) Engine
Removal and Installation
All vehicles 1. Remove the steering gear. For additional information, refer to Section 211 - 02 .
2. Remove the lower control arms. For additional information, refer to Section 204 - 01 .
Vehicles with convertible top
3. Remove the front subframe support. For additional information, refer to Subframe Support —
Convertible in this section.
Vehicles with hard top
4. Remove the front subframe brace. zRemove the bolts.
All vehicles 5. Lower the vehicle.
SECTION 502-
00: Frame and Body Mounting 2003 Mustang Workshop Manual Special Tool(s)
3-
Bar Engine Support Kit
303- F072 Lifting Bracket, Engine
303-
D088 (D93P-6001- A2) Klj . 1 ba
42003 Mustang Workshop Manual
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6. Install the special tool.
7. Install the special tool.
8. Raise and support the vehicle.
9. Remove the two engine mount nuts.
10. Lower the vehicle.
11. Using the special tool, raise and support the engine. Klj . 2 ba
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