Compression Check: Testing and Inspection

STANDARD PROCEDURE - COMPRESSION TESTING ENGINE

COMPRESSION SPECIFICATIONS:

1. Warm up engine to operating temperature (approximately 80°C, 176°F).
2. Shut off engine.
3. Remove engine cover.
4. Remove glow plugs.
5. Crank engine several times with the starter to eliminate combustion residues in the cylinders.
6. Insert compression tester adapter # 8927 with check valve installed into glow plug hole of cylinder to be tested.
7. Connect compression tester hose adapter # 9295 to compression gauge and test compression pressure by cranking engine with starter for at least 8 revolutions.
8. Carry out test procedure at the remaining cylinders in the same way.
9. Compare pressure readings obtained with the specified pressures. If the pressure reading is below the minimum compression pressure or if the permissible difference between the individual cylinders is exceeded. Refer to cylinder leak down test. Cylinder Leak Down Test
10. Remove compression tester and adapter from cylinder head.
11. Install glow plugs.
12. Install engine cover.

Procedure for using scan tool (DRBIII�) to perform electronic compression test:

Equipment Required:
- CH6000A Scan Tool (DRBIII�)
- CH7000/7001A J1962 Cable with red DRBIII� connector
- 9043 Multiplexer Cable
- CH9087 Dodge Sprinter Card (NAFTA)

1. Install Sprinter Card in DRBIII
2. Connect DRBIII
3. Turn ignition ON / engine OFF
4. Select "Yes"
5. From the Main Menu Screen select "DRBIII Standalone"
6. Press "Enter"
7. Select option 1 - "1998 - 2007 Diagnostics"
8. Select option 6 - "2002 - 2006 Sprinter"
9. Select "Yes" to launch legacy
10. Press "Enter"
11. Select option 1 "System select"
12. Select option 1 - "Engine"
13. Press "Enter"
14. Select option 1 "System test"
15. Select option 1 - "Compression test"
16. Follow on screen prompts to perform test.

Note: Engine will not start during test mode.start during test mode.