Ford Mustang Quiz
Engine

Bypass Tube - 3.8L

In this manual: Engine
Service Information — 34Suspension — 63Driveline — 80Brake System — 74Steering System — 42Engine — 329Automatic Transmission — 84Manual Transmission, Clutch and Transfer Case — 64Exhaust System — 8Fuel System — 39Climate Control System — 76Instrumentation and Warning Systems — 25Battery and Charging System — 19Audio Systems — 14Lighting — 24Electrical Distribution — 8Electronic Feature Group — 11Body — 173Frame and Mounting — 6General Information — 1
~1min read

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

Test yourself

A quick Ford Mustang quiz: every answer comes with an explanation and a link to the manual page.