GMC Powertrain 4.3 L, Руководство по обслуживанию, Страница: 26 / 196

6-16 Marine/Industrial 4.3L Engine
2000 Marine/Industrial
Important: You can repair most fluid leaks by first visually locating the leak, repairing or replacing the component, or
by resealing the gasket surface. Once the leak is identified, determine the cause of the leak. Repair the cause of the
leak as ewll as the leak itself.
1. Operate the vehicle until it reaches normal operating
1
temperature.
2. Park the vehicle on a level surface, over a large
sheet of paper or other clean surface. — Go to Step 2 System OK
2
Can you identify the type of fluid and the approximate
location of the leak? — Go to Step 10 Go to Step 3
1. Visually inspect the suspected area. Use a small
mirror to assist in looking at hard to see areas.
2. Check for leaks at the following locations:
3
• Sealing surfaces
• Fittings
• Cracked or damaged components
Can you identify the type of fluid and the approximate
location of the leak? — Go to Step 10 Go to Step 4
1. Completely clean the entire engine and surrounding
components.
2. Operate the vehicle for several kilometers (miles) at
normal operating temperature and at varying speeds.
3. Park the vehicle on a level surface, over a large
4 sheet of paper or other clean surface.
4. Wait (15 minutes).
5. Idetify the type of fluid and the approximate location
of the leak.
Can you identify the type of fluid and the approximate
location of the leak?
— Go to Step 10 Go to Step 5
1. Visually inspect the suspected area. Use a small
mirror to assist in looking at hard to see areas.
2. Check for leaks at the following locations:
5
• Sealing surfaces
• Fittings
• Cracked or damaged components
Can you identify the type of fluid and the approximate
location of the leak? — Go to Step 10 Go to Step 6
1. Completely clean the entire engine and surrounding
components.
2. Apply an aerosol-type powder (baby powder, foot
powder, etc.) to the suspected area.
6
3. Operate the vehicle for several kilometers (miles) at
normal operating temperature and at varying speeds.
5. Idetify the type of fluid and the approximate location
of the leak, from the discolorations in the powder surface.
Oil Leak Diagnosis
Step Action Value(s) Yes No