Exhaust Gas Recirculation Valve Cooler Cleaning and
Inspection
Cleaning Procedure
| 1. |
Remove the old gasket material
from the exhaust gas recirculation valve cooler sealing
surfaces. |
| 2. |
Clean all excess dirt and
debris from the exhaust gas recirculation valve cooler
housing. |
Inspection Procedure
| 1. |
Inspect the exhaust gas
recirculation valve cooler for the following: |
| |
• |
Damage, scoring, or cracks on
the housing surface (2). |
| |
• |
Damage, scoring, or cracks on
the bracket (3). |
| |
• |
Damage, scoring, or cracks on
the housing surface for the housing (8). |
| |
• |
Damage, scoring, or cracks on
the housing surface for the housing (13). |
| |
• |
Damage, scoring, or cracks on
the housing surface for the valve (10). |
| |
• |
Damage, scoring, or cracks on
the housing surface for the valve (5). |
| |
• |
Damage to the threads of the 5
exhaust gas recirculation valve cooler bolts (1). |
| |
• |
Damage to the threads of the 3
exhaust gas recirculation valve cooler bolts (4). |
| |
• |
Damage to the threads of the 2
exhaust gas recirculation valve cooler bolts (11). |
| |
• |
Damage to the threads of the 3
exhaust gas recirculation valve cooler bolts (12). |
| |
• |
Damage to the threads in the
exhaust gas recirculation valve cooler housing for the engine
temperature sensor (6). |
| |
• |
Damage, scoring, or cracks on
sealing (15). |
| |
• |
Damage, scoring, or cracks on
sealing (14). |
| |
• |
Damage, scoring, or cracks on
gasket (9). |
| |
• |
Damage, scoring, or cracks on
every sealing surface. |
| 2. |
Inspect the exhaust gas
recirculation valve cooler actuator (see arrow in picture) for
damage, scoring, or cracks on the housing surface and actuator
rod. |
| 3. |
Check the function and leak
tightness of the actuator by using a hand vacuum pump. |
| 4. |
Inspect the vacuum hoses (7,
16) for damage, scoring or cracks. |
| 5. |
Remove the cooling module (3)
of the housing (1). |
| 6. |
Inspect the cooling module (3)
for damage, scoring, or cracks. |
| 7. |
Inspect the inner surface (see
arrow in picture) for debris. |
| 8. |
Inspect the cooling module
sealing (2) for damage. |
|
