Oil Leak Diagnosis (Chevrolet Captiva 1 2006-2018: Engine FAM II 2.4D: Troubleshooting)

Important: Most fluid leaks can be repaired primarily by visually inspecting and locating the leak, repairing or replacing the related component, and improving the sealing surface. Once a leak is detected, the cause must be determined. Eliminate the cause of the leak, as well as the leak itself.

Step	Operation	Values	Yes	No
1	Start the vehicle engine and let it run until it reaches normal operating temperature. Park the vehicle on a flat surface above a large piece of paper or other clean surface. Wait 15 minutes. Carefully inspect the bottom of the car for drops. Are there drops?	-	Go to operation 2	System OK
2	Can the type of fluid and the approximate location of the leak be determined?	-	Jump to operation 10	Go to operation 3
3	Examine the suspect area. Use a small mirror to show hard-to-reach areas. Check the vehicle for leaks in the following locations: Sealing surfaces Fitting Cracked or damaged components Can the type of fluid and the approximate location of the leak be determined?	-	Jump to operation 10	Go to operation 4
4	Completely clean the entire engine and surrounding components. Travel several kilometers, miles at normal operating temperature and at various speeds. Park the vehicle on a flat surface above a large piece of paper or other clean surface. Wait 15 minutes. Determine the type of fluid and the approximate location of the leak. Can the type of fluid and the approximate location of the leak be determined?	-	Jump to operation 10	Go to operation 5
5	Examine the suspect area. Use a small mirror to show hard-to-reach areas. Check the vehicle for leaks in the following locations: Sealing surfaces Fitting Cracked or damaged components Can the type of fluid and the approximate location of the leak be determined?	-	Jump to operation 10	Go to operation 6
6	Completely clean the entire engine and surrounding components. Apply an aerosol powder, such as baby powder, foot powder, etc., to the suspected leak area. Travel several kilometers, miles at normal operating temperature and at various speeds. The type of liquid and the approximate location of the leak can be determined by discoloration in the powder surface. Can the type of fluid and the approximate location of the leak be determined?	-	Jump to operation 10	Jump to Operation 7
7	Examine the suspect area. Use a small mirror to show hard-to-reach areas. Check the vehicle for leaks in the following locations: Sealing surfaces Fitting Cracked or damaged components Can the type of fluid and the approximate location of the leak be determined?	-	Jump to operation 10	Jump to operation 8
8	To identify the type of liquid and find the approximate location of the leak, use an invisible radiation device. When using the device, follow the manufacturer's instructions. Can the type of fluid and the approximate location of the leak be determined?	-	Jump to operation 10	Go to operation 9
9	Examine the suspect area. Use a small mirror to show hard-to-reach areas. Check the vehicle for leaks in the following locations: Sealing surfaces Fitting Cracked or damaged components Can the type of fluid and the approximate location of the leak be determined?	-	Jump to operation 10	System OK
10	Inspect the engine for mechanical damage. Particular attention should be paid to the following points: Higher than recommended fluid levels Higher than recommended fluid pressure Clogged or failed fluid filters or check valves. Clogged or damaged engine ventilation system Loose or damaged fasteners Cracked or porous components Wrong seals or gaskets in the right places Incorrect seal or gasket installation Damaged or worn gaskets or seals Damaged or worn sealing surfaces Carefully inspect the engine for changes made by the customer. Does the engine have mechanical damage or customer modifications?	-	Go to operation 11	System OK
11	Repair or replace any damaged or modified components. Does the engine still have oil leaks?	-	Go to operation 11	System OK