Check engine light flashing a code. what does this mean

Ford's PATS anti-theft system disables the starter from spinning the engine . Flashing real fast while trying to start the vehicle means the vehicle see's wrong key code ,think's the vehicle is being stolen . Code's stored in the computer , FORD dealer , nothing you can or should do .

need to scan for code autopart store should scan it for free and give you a print out of code.

sounds like a injector pump to me had a 99 dodge cummins went through three of them in 350000 miles done just like you are describing.

Sounds like a weal fuel pump.Check your fuel pressure it should be 48-55 psi with key on and engine off.If its not not within these specs replace fuel pump.

I would check the ignition module and crank sensor.

your computer can have those codes stored in memory although theres nothing actually wrong. you can unplug your battery for about five minutes then hook it back up this should free the codes out of the system.also if youve traveled more than 30,000 miles id relpace the plugs in do a complete tune up.

NEED TO QUIT GUESSING.. IS THE CHECK ENGINE LIGHT ON.. SCAN FOR CODES. IF NONE THEN NEXT STEP IS TO CHECK FUEL PRESSURE.. IF IT IS GOOD.. THEN IF IT IS FLOODING OUT. ONCE IT IS FLOODED YOU CAN PULL SPARK PLUGS AND FIND THE ONE THAT IS WET,,, SUSPECT THAT INJECTOR TO BE STUCK OPEN

Your inline fuel filter might be clogged and needs changed or your fuel pump is getting ready to go

Make sure that all the wiring disturbed by the battery change was restored. Do you have the check engine light on? If so, rent a scanner and read out any code(s). Pursue the codes to repair(s). You can check the ignition by removing one spark plug wire, connect it to a spare plug and set the plug base on the engine. Have someone try the starter while you watch the plug--it should flash at regular intervals while the starter turns. If ok, let the car rest for a while, then have someone turn-on the key (don't try to start) while you listen at the fuel tank. You should hear the fuel pump run for a short time, then quit. That means the pump has built pressure and is awaiting start. If it continues to run, the pump may be toast and should be replaced. Change the fuel filter.

You'll have to get rid of that check engine light as it indicates a malfunctioning part. Whether you like it or not you'll have to take it to a shop to do a diagnostic check on it. Check the fuel filter or a relay that's associated with the fuel system. It seems to cut out when it gets hot, check to see if there are any relays in the fuel system.