lock FORD MUSTANG 2003 Workshop Manual

REMOVAL AND INSTALLATION
Fuel Injection Supply Manifold and Fuel Injector
Removal and Installation
WARNING: Do not smoke or carry lighted tobacco or open flame of any type when
working on or near any fuel related components. Highly flammable mixtures are always present
and can ignite. Failure to follow these instructions can result in personal injury.
WARNING: Fuel in the fuel system remains under high pressure even when the engine is
not running. Before working on or disconnecting any of the fuel lines or fuel system
components, the fuel system pressure must be relieved. Failure to follow these instructions
can result in personal injury.
1. Disconnect the battery ground cable.
2. Remove the air cleaner outlet tube. For additional information, refer to Section 303 - 12 .
3. Release the fuel pressure. For additional information, refer to Section 310 - 00 .
4. Disconnect the fuel supply hose spring lock coupling. For additional information, refer to Section 310 - 00 .
5. Remove the exhaust gas recirculation (EGR) valve and the exhaust manifold- to-EGR valve
tube. For additional information, refer to Section 303 - 08 .
6. Remove the throttle body and spacer assembly.
7. Disconnect the vacuum hose.
SECTION 303-
04C: Fuel Charging and Controls — Cobra 4.6L (4V) 2003 Mustang Workshop Manual Material
Item Specification
SAE 5W-
20 Premium Synthetic
Blend Motor Oil
XO- 5W20- QSP WSS-
M2C153-
H Klj . 1 ba
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REMOVAL AND INSTALLATION
Accessory Drive Belt —
3.8L
Removal and Installation 1. Rotate the drive belt tensioner counterclockwise and remove the drive belt.
2. NOTE: Make sure the drive belt is correctly installed on each pulley.
To install, reverse the removal procedure. zRefer to Accessory Drive for drive belt routing.
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REMOVAL AND INSTALLATION
Accessory Drive Belt —
4.6L (2V) and (4V)
Removal and Installation
Mach I 1. Remove the air intake scoop. For additional information, refer to Section 303 - 12 .
Cobra 2. Remove the supercharger drive belt cover.
3. Rotate the supercharger belt tensioner clockwise and remove the supercharger belt.
4. Remove the coolant hose mounting bolt.
5. Remove the belt idler support bracket assembly.
SECTION 303-
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REMOVAL AND INSTALLATION
Supercharger Belt
Removal and Installation
1. Remove the supercharger drive belt cover.
2. Rotate the supercharger belt tensioner clockwise and remove the supercharger belt.
3. To install, reverse the removal procedure.
SECTION 303-
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REMOVAL AND INSTALLATION
Accessory Drive Belt Tensioner —
4.6L (2V) and (4V)
Removal and Installation
Mach I 1. Remove the air intake scoop. For additional information, refer to Section 303 - 12 .
Cobra 2. Remove the supercharger drive belt cover.
3. Rotate the supercharger belt tensioner clockwise and remove the supercharger belt.
4. Remove the cooling hose and tube assembly mounting bolt.
5. Remove the belt idler support bracket assembly.
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REMOVAL AND INSTALLATION
Supercharger Belt Tensioner
Removal and Installation
1. Remove the supercharger drive belt cover.
2. Rotate the supercharger belt tensioner clockwise and remove the supercharger belt.
3. Remove the bolts and the supercharger belt tensioner.
4. To install, reverse the removal procedure.
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REMOVAL AND INSTALLATION
Accessory Drive Belt Idler Pulley —
4.6L (2V) and (4V)
Removal and Installation
Mach I 1. Remove the air intake scoop. For additional information, refer to Section 303 - 12 .
Cobra 2. Remove the supercharger drive belt cover.
3. Rotate the supercharger belt tensioner clockwise and remove the supercharger belt.
4. Remove the coolant hose mounting bolt.
5. Remove the belt idler support bracket assembly.
SECTION 303-
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REMOVAL AND INSTALLATION
Supercharger Belt Idler Pulley
Removal and Installation
1. Remove the supercharger drive belt cover.
2. Rotate the supercharger belt tensioner clockwise and remove the supercharger belt.
3. Remove the bolt and the supercharger belt idler pulley.
4. To install, reverse the removal procedure.
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8. Disconnect the vacuum hose.
9. Disconnect the fuel supply spring lock coupler. For additional information, refer to
Section 310 -
00 .
10. Disconnect the accelerator controls. zDisconnect the accelerator cable.
z If equipped, disconnect the speed control cable. 11. Remove the accelerator cable bracket bolts. Klj . 2 ba
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To start the testing, conditions of stable purging and vehicle speed must be satisfied. During the first
stage, the canister vent solenoid is closed, while the EVAP canister purge valve remains open,
applying and building vacuum in the system as indicated by the FTP sensor. This phase checks for
major leaks in the EVAP system.
In the second stage, the EVAP canister purge valve closes and the system looks for minimal decay
rate in the EVAP vacuum, indicating the absence of any small EVAP system leaks.
The last stage is entered only if stage two of the leak test has failed and checks whether the failed test
was due to excess vapor generation. It monitors fuel vapor generation rate. Initially, the canister vent
solenoid is opened to equalize EVAP system pressure to atmosphere. Then the canister vent solenoid
is closed, allowing pressure to build if vapor generation is present in sufficient quantity. If the rate of
generation is found to be too high, the EVAP running loss system leak test is aborted. If not, then a
small leak is diagnosed.
On-
Board Refueling Vapor Recovery (ORVR) Evaporative Emission (EVAP) System
The basic elements forming the ORVR system are as follows:
zThe fuel filler pipe forms a seal to prevent vapors from escaping the fuel tank while liquid is
entering the fuel tank. Liquid in the one inch diameter tube blocks vapors from rushing back up
the fuel filler pipe.
z A fuel vapor control valve controls the flow of vapors out of the fuel tank. The valve closes when
the liquid level reaches a height associated with fuel tank usable capacity. The valve
accomplishes the following:
„limits the total amount of fuel that can be dispensed into the fuel tank
„ prevents liquid gasoline from exiting the fuel tank when submerged (as well as when
tipped well beyond a horizontal plane as part of the vehicle rollover protection in road
accidents)
„ minimizes vapor flow resistance during anticipated refueling conditions
z Fuel vapor tubing connects the fuel vapor control valve to the EVAP canister. This routes the
fuel tank vapors, displaced by the incoming liquid, to the EVAP canister.
z A check valve in the fuel filling system prevents liquid from rushing back up the fuel filler pipe
during the liquid flow variations associated with the filler nozzle shut- off.
Between refueling events, the EVAP canister is purged with fresh air so that it may be used again to
store vapors accumulated during engine soaks or subsequent refueling events. The vapors drawn off
of the carbon in the EVAP canister are consumed by the engine.
Inspection and Verification 1. Verify the customer concern is with the evaporative emission (EVAP) system.
2. Visually inspect for the following obvious signs of mechanical damage.
Visual Inspection Chart Mechanical
z
Fuel filler cap
z EVAP test port
z EVAP canister or canister vent solenoid Klj . 3 ba
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