2003 FORD MUSTANG Workshop Manual

center console oil capacity ECU brake maintenance air condition

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Page 1601 of 4378

FORD MUSTANG 2003 Workshop Manual Klj . 17 ba
172003 Mustang Workshop Manual
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FORD MUSTANG 2003 Workshop Manual SPECIFICATIONS
SECTION 303-
01D: Engine — Mach I 4.6L (4V) 2003 Mustang Workshop Manual General Specifications
Item Specification
Metal Surface Cleaner
F4AZ-
19A536- RA WSE-
M5B392- A Silico

Page 1603 of 4378

FORD MUSTANG 2003 Workshop Manual Valve Head Diameter
·
Intake 37 mm (1.46 inch)
·
Exhaust 30 mm (1.18 inch)
·
Gauge Diameters 35.0 and 28.0 mm (1.378-
1.102 inch) Valve Face Runout Limit 0.05 mm (0.002 inch)
Valve Face

Page 1604 of 4378

FORD MUSTANG 2003 Workshop Manual Bearing Inside Diameter (All) 27.012-
26.987 mm (1.0635- 1.0625 inch) Front Bearing Location e
CYLINDER BLOCK
·
Head Gasket Face Flatness 0.15 mm (0.006 in) MAX overall
·
Head Gasket Surface

Page 1605 of 4378

FORD MUSTANG 2003 Workshop Manual a
Newly Installed— Refers to the condition of the "NEW" drive belt before the engine has made no more
than one rotation and before the belt has had a chance to stretch or seat into the pulley groo

a
Newly Installed— Refers to the condition of the "NEW" drive belt before the engine has made no more
than one rotation and before the belt has had a chance to stretch or seat into the pulley grooves.
c P=Primary, S=Secondary, E=Exhaust
d Time necessary for plunger to leak down 1.6 mm of travel with 222 N force and leak down fluid in
tappet.
e Distance front edge of bearing is installed below front face of cylinder block.
f 0.050 Undersize— add 0.025 to standard thickness.
g Pin bore and crank bearing bore must be parallel and in same vertical plane within the specified total
difference when measured at the ends of a 203 mm bar, 101.5 mm on each side of rod centerline.
h Cylinder Bore Diameter
Red— 90.200-90.213
Blue— 90.213-90.226
Yellow— 90.226-90.239 ·
Coded Red 1 90.167-
90.188 mm (3.299- 3.5505 inch) ·
Coded Blue 2 90.180-
90.195 mm (3.5504- 3.5510 inch) ·
Coded Yellow 3 90.198-
90.208 mm Coated Piston-
to-Bore Clearance -
0.010/+0.026 mm (- 0.0003937/+0.0010236 inch) Pin Bore Diameter 21.9985-
22.0025 mm (0.866081- 0.866238 inch) Ring Groove Width
·
Compression (Top) 1.230-
1.250 mm (0.484- 0.0492 inch) ·
Compression (Bottom) 1.520-
1.540 mm (0.05984- 0.06062 inch) ·
Oil Ring 3.030-
3.055mm Piston Pin
·
Length 61.601-
62.030 mm (2.42523- 2.44212 inch) ·
Diameter 22.0005-
22.0030 mm (0.8661596- 0.8662581
inch) Pin to Piston Fit
j -
0.0045/+0.002 mm (- 0.000177/+0.0000787 inch) Pin to Rod Clearance
·
Standard 0.004-
0.0175 mm (0.000157- 0.00689 inch) ·
Service Limit 0.035 mm (0.001378 inch)
Oil Ring 1.15 mm (0.04528 inch) MAX
·
Side Clearance .075
-.1000 mm (.0030 -.0040 inch) ·
Compression (Top) 0.0090-
0.0235 mm (0.000354- 0.000925 inch) ·
Compression (Bottom) 0.030-
0.080 mm (0.00118- 0.00315 inch) ·
Oil Ring Snug Fit
Ring Gap
k ·
Compression (Top) .150
-.300 mm (.006- 0.0018 inch) ·
Compression (Bottom) 0.300-
0.550 mm (0.0018- 0.0022 inch) ·
Oil Ring (Steel Rail) 0.15-
0.66 mm (0.00591- 0.02598 inch) Piston Rings
·
Ring Gap ·
Compression (Top) 1.00 mm (0.03937 inch) MAX
·
Compression (Bottom) 1.00 mm (0.03937 inch) MAX
·
Service Limit 1.15 mm (0.04528 inch) MAX
LUBRICATION SYSTEM
Oil Capacity (Quarts U.S.)
6 ±
0.25 l Klj . 4 ba
62003 Mustang Workshop Manual
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Page 1606 of 4378

FORD MUSTANG 2003 Workshop Manual i
Measured at 42 mm from piston dome, at 90 degrees to the piston pin.
j Piston pin outer diameter is larger than piston pin bore, providing a possible interference fit.
k Specification in 90.200

Page 1607 of 4378

FORD MUSTANG 2003 Workshop Manual a
Refer to the procedure. Flexplate bolts 80 59 —
Flywheel bolts 85 63 —
Torque converter nuts 36 27 —
Oil level indicator tube retainer 10 — 89
Primary timing chain guide-
to-en

Page 1608 of 4378

FORD MUSTANG 2003 Workshop Manual DESCRIPTION AND OPERATION
Engine
WARNING: Do not operate the engine with the hood open until the fan blade has been first
examined for possible cracks and separation.
The 4.6L (4V) (281 CID) is a

DESCRIPTION AND OPERATION
Engine
WARNING: Do not operate the engine with the hood open until the fan blade has been first
examined for possible cracks and separation.
The 4.6L (4V) (281 CID) is a V- 8 engine with the following features:
z dual overhead camshafts
z four valves per cylinder
z sequential multiport fuel injection (SFI)
z an aluminum intake manifold
z aluminum cylinder heads
z a cast aluminum, 90-degree V- cylinder block
z individually chain- driven camshafts with a hydraulic timing chain tensioner on each timing chain
z the electronic ignition system with eight ignition coils
Identification
Always refer to these labels when replacement parts are necessary or when checking engine
calibrations. The engine parts often differ within a CID family. Verification of the identification codes will
ensure that the correct parts are obtained. These codes contain all the pertinent information relating to
the dates, optional equipment and revisions. The Ford Master Parts Catalog contains a complete
listing of the codes and their application.
Code Information
The engine code information label, located on the side of the valve cover and the front side of the
valve cover, contains the following:
zengine build date
z engine plant code
z engine code
Exhaust Emission Control System
Operation and necessary maintenance of the exhaust emission control devices used on this engine is
covered in the Powertrain Control/Emissions Diagnosis (PC/ED) manual.
Induction System
The sequential multiport fuel injection (SFI) provides the fuel/air mixture needed for combustion in the
cylinders. The eight solenoid- operated fuel injectors:
z are mounted in the lower intake manifold.
z meter fuel into the air intake stream in accordance with engine demand.
z are positioned so that their tips direct fuel just ahead of the engine intake valves.
SECTION 303-
01D: Engine — Mach I 4.6L (4V) 2003 Mustang Workshop Manual Klj . 1 ba
152003 Mustang Workshop Manual
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