Is there a place that I can find all the ground locations on a 2001 Ford F-250 with the 7.3L in it. Thanks.

They are all over. Some on the engine, some on the body in the engine compartment, lighting is grounded, rear lights are grounded. What's the problem?

Battery light is staying on, 2 new batteries installed, new starter, and alternator was tested and tested good. Also the positive wire going to both batteries and starter has also been replaced. The truck also turns over slow when starting.

Check Starter Wire From Battery, Large ground from Battery. Measure standing voltage and starting voltage at battery. Then between Battery Ground and Starter Positive, this will help determine if it is a hot or ground problem. Can test voltage between Battery Positive and Engine Block. Good Luck

Is this truck subject to corrosion? Where is it driven?