Ford Mustang (1999-2004) Service Manual: Bypass Tube - 3.8L

Material

Item Specification
Motorcraft Premium Gold Engine Coolant VC-7-A (in Oregon VC-7-B) (yellow color) WSS-M97B51- A1

Removal and Installation

1. Drain the engine coolant. For additional information, refer to Cooling System Draining, Filling and Bleeding in this section.

2. Remove the upper intake manifold. For additional information, refer to Section.

3. Remove the bypass hose from the bypass tube.

Bypass Tube - 3.8L

4. Remove the bolt and remove the bypass tube from the coolant pump.

Bypass Tube - 3.8L

5. Disconnect the quick connect fitting and remove the bracket bolts and the bypass tube.

Bypass Tube - 3.8L

6. Install a new O-ring seal on the coolant bypass tube.

Bypass Tube - 3.8L

7. CAUTION: Do not cut the O-ring seal during tube installation or engine coolant leakage may occur.

Clean the O-ring sealing surface on the cylinder heads and lubricate the O-ring seal. Use premium engine coolant.

8. To install, reverse the removal procedure.

Bypass Tube - 3.8L

    Thermostat - 4.6L(4V)
    Material Item Specification Motorcraft Premium Gold Engine Coolant VC-7-A (in Oregon VC-7-B) (yellow color) WSS-M97B51- A1 Removal and Installation 1. With the vehicle in ne ...

    Bypass Tube - Cobra
    Material Item Specification Motorcraft Premium Gold Engine Coolant VC-7-A (in Oregon VC-7-B) (yellow color) WSS-M97B51- A1 Removal and Installation 1. Drain the engine coola ...

    Other materials:

    Link - Stabilizer Bar
    Removal CAUTION: Suspension fasteners are critical parts because they affect performance of vital components and systems and their failure can result in major service expense. A new part with the same part number or an equivalent part must be installed, if i ...

    Dual Converter Y-Pipe - 3.8L
    Removal NOTE: The RH and LH catalytic converters are serviceable separately. 1. Raise and support the vehicle. For additional information, refer to Section. 2. CAUTION: When repairing the exhaust system or removing exhaust components, disconnect all heated o ...

    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 ...