My 94 fors Taurus cuts out while driving and sometimes will not start. It cranks but won't start. We changed the fuel pump, spark plugs and distributor cap, but it is still cutting out while driving and it won't start again... I need help!

check see if you getting spark if not.have vechicle code scan could have faulty ECM .faulty camshaft sensor and crankshaft sensor.make sure engine has been tuned up.replace fuel filter change spark plugs and wires. before engine can run need fuel and spark.either one not working car will not crank.

BAD COIL OR IGNITION MODULE INSIDE DISTRIBUTOR RUN OHM TESTS TO VERIFY

You need 3 things for your vehicle to start and run.. Fuel, spark and air. If you've recently replaced the fuel filter I'd have the fuel pumps electrical connections checked out. It could possibly be on its way out. Also check all spark plugs, wires and coil pack to make sure nothing is damaged on the "spark system". Then of course make sure the filter is clean and that all of your sensors monitoring the air flow into the throttle body are connected. From personal experience though, I'd say it sound like the fuel pump isn't always doing what it should upon initial start up and that's where I'd direct my attention.

Have you ever heard of testing before replacing parts ? Fuel pressure an flow tesing , testing the electrical circuit for the fuel pump , amp draw testing , voltage drop testing etc... Thier are no magical fixes in auto repair . No spark ! check B+ voltage an ground circuits for the ignition system , Ignition System Designs Operation and Testing an SD Premium video

Try replacing the camshaft position sensor usually solves the problem.

Check your battery and alternator connections for tightness. Does it crank over, but won't start? If it won't even crank over, then likely some connection did come loose, like an alternator connection, possibly your fusible link (near the battery).
If it does crank, but won;t start: You'll just have to start from scratch to find the problem. Try to determine if it's fuel or ignition-related. Check for spark at a plug wire. If you have spark, then ignition is not the problem. Check if your fuel pump works. When you turn key on, you should hear the pump buzz on for a couple of seconds. It should also be on when cranking and running, but you can only hear it, or should, when you first turn key to on. If your toyota has a schrader valve on the fuel rail (a valve for checking pressure-it looks like a typical air valve, like on your tire, but is for attaching a fuel pressure gauge) if it has one punch the center with a little screwdriver-gas should shoot out if you have any fuel pressure, If not, have your fuel pressure checked.good luck.

fuel problem or spark problem neither is associated with a change in sparkplug unless you had a sever misfire that you let go for a long time to cause thhe igition module to fail.and this include the crank sensor that is underneath the ignition module. cycle the key you should hear a humm at the fuel tank and that is the fuel pump working if you hear the fuel pump then more than likely you will need to correct for spark ignition module and crank sensor

your terminology is wrong.if it cranks its turning over what you mean is it won`t start(fire up) as you said at the beginning.anyways it sounds like you could have a fuel pump problem that stop working.this happens alot.you should check for spark at the plugs to make sure its not an ignition problem.did you notice a check engine light on when it was running.if so there will be a code in the ecm and may be the cause of your problem.

Its not the oil, increasing temperature will thin out the oil. If it cranks easily but won't start it could be the spark plugs or the spark plug wires. When they heat up, especially if they are old, they won't perform well. Pull off one of the wires and hold it close to the plug, try to crank the engine and look for a spark. If it sparks them try removing a plug and check to see if it looks wet. If its bone dry it might not be getting fuel.

Give it a shot of starter fluid: See if it starts up on that, if not, go out, take off the battery wires, sand the terminals to shiny. Pull a spark plug and check for spark (But don't hold it WHILE checking, that hurts.) I'm guessing the fuel pump has cut out, or the ground wasn't quite there.