I THINK MY EX SAVATAGED MY '98 FORD MUSTANG?

I'm not paranoid because the man slashed my tires before and we weren't even broken up. So when I started having terrible problems with the vehicle after we broke up I suspected it may be sabotage. I have been through hell because it has a Passive Anti-Theft System that kicks in every time it stalls during a running idle.

So I changed the fuel filter, and removed the thermostat because I thought it was either the fuel tank or the radiator he had screwed with. This TEMPORARILY worked but then my radiator stopped circulating so I removed the thermostat. This also seemed to work TEMPORARILY. I know this is too hard to troubleshoot over the internet but if there are people out there who know about ANY LINK:

Between the fuel tank feeling clogged and the cooling system not circulating (without a thermostat). Please help and hope that people who do, do **** like this to others will realize they are putting lives in danger.

What makes your car have a running stall? Not fuel pump because I hear it turn on…

Lots of info here- but I don't know what the problem is that you're trying to fix. What is a running stall?
FYI: An easy/common sabotage would be to pour sugar or something similar into your fuel tank. I might have an expert look at the filter you pulled out and see if there's a foreign substance in it. Such contamination might fowl the fuel pump as well as the injectors. A general fuel system cleaner might help-- and I might consider a locking gas cap. If he doesn't have keys- I doubt if he could access your cooling system- so it sounds like you have more than one problem and that they probably aren't related.

Savatage is a metal band. Sabotage is an act of destruction.