Introduction

This section covers various engine tests, adjustments, service procedures and cleaning/inspection procedures. Engine assembly and service specifications appear at the end of each engine Section 03-01A (4.9L SFI), Section 03-01B (5.0L and 5.8L MFI), Section 03-01C (7.5L MFI) or Section 03-01D (7.3L diesel).

For engine (6007) removal, disassembly, assembly, installation, adjustment procedures and specifications, refer to Section 03-01A (4.9L SFI), Section 03-01B (5.0L and 5.8L MFI), Section 03-01C (7.5L MFI) or Section 03-01D (7.3L diesel).

These engines incorporate a closed-type crankcase ventilation system and exhaust emission control system. All engine/emission control systems are covered in the Powertrain Control/Emissions Diagnosis Manual OBDI or OBDII.

To maintain the required exhaust emission levels, the fuel system, ignition system and engine must be kept in good operating condition and meet recommended adjustment specifications.

When performing tests, adjustment or service to the engine or fuel ignition system, it is essential to follow the procedures and specifications in the appropriate repair group in this manual, and in the Powertrain Control/Emissions Diagnosis Manual OBDI or OBDII.

Before replacing damaged or worn engine components such as the crankshaft (6303), cylinder heads (6049), valve guides, valves, camshaft (6250) or cylinder block (6010), make sure that part(s) is not serviceable.

 WARNING: TO AVOID THE POSSIBILITY OF PERSONAL INJURY OR DAMAGE TO THE VEHICLE, DO NOT OPERATE THE ENGINE WITH THE HOOD (16612) OPEN UNTIL THE FAN HAS FIRST BEEN EXAMINED FOR POSSIBLE CRACKS AND SEPARATION.