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Someone bought about $100 worth of gas when my card was with me at home. I'm scared now to use it to buy anything, whether in store or online. The bank fraud department said that the thief has used the magnetic stripe and not a chip with pin to steal gas. I never give my card to anyone. How could this have happened?

2003 Ford F150 4.6 L

I'm replacing the upper and lower gaskets. The new upper gasket has 8 metal ferrules in it. The old has none. Fel-Pro states in a piece of paper that I must remove the ferrules if the original ones don't have them, but they don't explain HOW.  It doesn't seem to pry off easily. Can anyone help me please? 

I have a coolant leak coming from two passenger-side engine plugs. Both plugs are just behind the passenger-side motor mount. I don't have a vertical bar to hoist the engine slightly upward to remove the mount. Can I put a jack with a 2 by 4 on top of it to lift the engine to loosen the mount? Where is the best place to life the engine? 

It's hard to fine a good place.  I'm afraid the oil pan will get crushed. 

2003 Ford F-150 XLT 5.4 L 

A couple of days ago I noticed the radiator cap was leaking coolant so I replaced it. 

This morning (two days later) my husband drove the truck 3 miles or so and the engine overheated. After stopping at a parking lot, he waited a few minutes to drive it back home. At the return trip the needle in the gauge was fine and the truck rode well. The overheating stopped.

I checked the fan--no problem. I tested the thermostat in boiling water and it expanded and contracted properly. I suspected an air pocket, so I burped the coolant.

I didn't have time to test drive it, but at idle for 15 minutes the temp gauge was normal and there was no overheating. Heat was coming through vents in the cabin normally. 

Question: My husband says it couldn't have been an air pocket because the day after the cap was replaced he drove the truck fine. Can an air pocket still cause overheating a couple of days after replacing the cap? My thinking is that the leak in the cap caused air pockets to form and it caused an overheating situation 2 days later.  .