ITEM STOPPED WORKING. It just died! The batteries are fine, but it just stopped working.

This could be the fuel pump, the crank sensor or some other items. If you can get a reader for the OBD computer it will tell you.

Check wires. Mainly the battery wires. then work your way out. Start the car up and start shaking wires until it stops. If that doesnt work, then get a mechanic to look.

vivian check if cables are loose including both terminals. If the battery works on non-rainy days, it could be ok.

bad conection. need to change batt posts on car or it dont have a good ground. follow the neg wire n check that one too.

Battery light on ! alternator isn't charging . Test the alternator electrical circuits .Main cable on the back of the alt. should have B+ voltage .Pin # 3 at the connector on the alt. should have B + voltage - fuse F10 10amp under hood fuse box supply's B+ to pin #3 . Pin's 1 & 2 at the connector go to the PCM - engine computer . This is a computer controlled charging system .
Ford PCM controlled alternator testing

It's not your battery. It might be your IAC valve (intake air control valve) or an EGR valve, maybe even a vacuum leak. The battery is fine. Your fuel filter is most likely fine. When the fuel filter plugs, the car will usualy idle ok but will lose power during acceleration.

These CIS vehicle are tempermental. Best thing to do is change the air filter, clean air flow sensor plate(Spray gunout on a rag and lightly clean it ) Gun out throttle body and a slight idle adjustment. Finallyonce a month put some fuel injection cleaner in the tank. See how this works before we start testing items.

I would check ignition items or fuel delivery if it just died on you. It wont be the battery unless it was dead and the alternator stop working.

Two areas to consider are the MAP sensor and the Idle Control Valve, both pricey items for your vehicle. I'd go to a local autoparts chain and see if they can run a free diagnostic test for you. The codes will point you in the right direction.

i shoul not afect any thing unless you replace the batterie with the car runing, and some radios have antitheft code if batterie die or disconect the radio will ask you to type a code in order to work again but most of times it display the worl code on the digital screen