For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Important: Transmission fluid may turn dark with normal use and does not always indicate contamination or oxidation. Inspect the fluid color. Is the fluid color red? | -- | Go to Step 4 | Go to Step 2
2 | Inspect the fluid color. Is the fluid color pink, and not transparent? | -- | Go to Step 13 | Go to Step 3
3 | Inspect the fluid color. Is the fluid color light brown? | -- | Go to Step 18 | --
4 | Inspect the fluid. Is the fluid foamy? | -- | Go to Step 12 | Go to Step 5
5 | Inspect the fluid level. Is the fluid level high? | -- | Go to Step 8 | Go to Step 6
6 | Inspect the fluid level. Is the fluid level low? | -- | Go to Step 9 | Go to Step 7
7 | Confirm that the fluid level is OK. Is the fluid inspection complete? | -- | Go to Step 20 | --
8 | Remove excess fluid. Is the action complete? | -- | Go to Step 20 | --
9 | Add fluid in order to obtain the proper level. Is the action complete? | -- | Go to Step 10 | --
10 | Inspect for external leaks. Refer to Fluid Leak Diagnosis and Repair . Is the action complete? | -- | Go to Step 11 | --
11 | Repair the leak. Is the action complete? | -- | Go to Step 20 | --
12 | Inspect for a high fluid level. Is the fluid level high? | -- | Go to Step 8 | Go to Step 13
13 | Test for contaminants in the fluid. Is the action complete? | -- | Go to Step 14 | --
14 | Drain the fluid in order to determine the source of contamination. Is the action complete? | -- | Go to Step 15 | --
15 | Perform a transmission overhaul. Is the action complete? | -- | Go to Step 16 | --
16 | Add new fluid. Is the action complete? | -- | Go to Step 17 | --
17 | Inspect the fluid level. Is the action complete? | -- | Go to Step 20 | --
18 | Important: A very small amount of material in the bottom pan is a normal condition. Drain the fluid in order to determine if there is contamination. Are there large pieces of metal or of other material in the bottom of the pan? | -- | Go to Step 15 | Go to Step 19
19 | Change the fluid and the filter. Is the action complete? | -- | Go to Step 20 | --
20 | Perform the road test. Refer to Road Test . Is the action complete? | -- | System OK | --