To find the timing marks, you will need to remove the timing belt cover. The timing belt cover is located on the front of the engine. It is held in place by a few bolts. Once the timing belt cover is removed, you will be able to see the timing marks.
Here are the steps on how to find the timing marks on a 1994 Ford Ranger:
1. Remove the timing belt cover.
2. Locate the timing mark on the auxiliary sprocket.
3. Locate the timing mark on the timing cover.
4. Align the two marks.
When the two marks are aligned, the engine is at TDC. This is the position that you need to be in when you are installing or removing the timing belt.