GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value

Yes

No

1

Check the oil drain valve.

Is the valve closed?

--

Go to Step 3

Go to Step 2

2

Close the oil drain valve.

Is the drain valve closed?

--

System OK

--

3

Check the vehicle system.

Is there a leak in the system?

--

Go to Step 4

Go to Step 5

4

Locate and repair the system leak.

Is the repair complete?

--

System OK

--

5

Check the return oil solenoid valve.

Is the valve open?

--

Go to Step 6

Go to Step 7

6

Replace the solenoid valve.

Is the replacement complete?

--

System OK

--

7

Check the components.

Are the components faulty?

--

Go to Step 8

System OK

8

Call Tech Assist 1-800-345-2233

Did you call Tech Assist.?

--

System OK

--