Have an 04 ford freestar 3.9l. Cranks but wit start just changed out spark plugs and wires coil ignition pack and the crank shaft sensor.

Check the crank shaft position sensor!

Hi Leroy, Im glad to help!

Here's a couple things you can try. First, swap the ASD Relay with one of the same type relays in the relay box. If it still doesn't start check every fuse. If it still doesn't start check power and ground at the "COIL PACK" If power and ground are good Replace the Coils Pack. If there is no power and ground at the coil pack then make certain you are getting power from the ignition switch to the ASD Relay. Hope this helps and have an awesome day Leroy.

there are 2 pieces to the crankshaft sensor...one is a little round thing that is mounted under the valve cover on the driver side. The other part plugs into this and the cable runs down under the other side of the engine. The sensor is inside the timing belt cover.

i had your problem a month ago and had the little round part replaced and that worked for me.

2004 Sonata 4 cyl auto

Check the crank shaft sensor but first check the ignition coils sparkplug wires and the main ignition relays

O2 sensors get changed at 100,000 miles
Has that been done?

Has the TPS Sensor been tested with a scan tool
or oscilloscope?

Have you cleaned the MAF Sensor

All these items should be part of your preventative
maintenance,just as spark plugs

There is no need what so ever to change wires or coil,
unless they are tested & fail a test

Yes it is very much possible.But there are many other possibilities too,including starter and spark plugs issue.

If your engine cranks normally but will not start because it has no spark, or it stalls and won't restart because it has no spark.

You can also do a test to confirm the problem .The procedure to do the test is as follows:---

If your engine has spark plug wires, disconnect one of the plug wires from a spark plug and place the end of the wire near a metal surface on the engine. Then insert a small Phillips screwdriver into the end of the wire (the plug boot), or a small bolt or nail to provide a conductive path. Then crank the engine and look for a spark to jump from the screwdriver, bolt or nail in the end of the plug wire to the engine. If you do not see a spark, there is an ignition problem.

OR-----------

If your engine has a coil-on-plug ignition system with no plug wires, In that case remove one of the coils from the spark plug and insert an old spark plug, a spark plug tester or a screwdriver into the end of the coil. Ground the spark plug or plug tester to the engine, then crank the engine and look for a spark. No spark indicates an ignition problem.If the engine has no spark, check for voltage at the coil positive terminal when the ignition key is on. If NO voltage, then problem is on the trigger side of the coil (pickup, crank sensor, ignition module or primary wiring circuit).

But If there is NO voltage at the coil itself, then in that case the problem is on the supply side (the ignition switch or ignition wiring circuit).-----------------

Jeep cranks but no start:----------------

A jeep that cranks over but doesn't start, in many cases will be due to a bad fuel pump, a broken timing belt, an inoperative cam sensor or crank sensor. Also these problems are related to faulty spark plug. Check the spark at spark plugs when you start the jeep. Do you notice any spark. Actually you should see. If in case there is no spark then it's a spark plug problem. Also the coil pack gives power to spark plug. So check the voltage at coil pack. It will show 12 volt. If there is no voltage noticed at coil pack then its faulty coil pack that has to be replaced. If all the possible options checked out ok then check the car starter. The starter gets power from battery to start the jeep. If the starter is faulty then it will not let the car to start. Also check and confirm that there is fuel in the jeep. If its very low fuel then in some cases this causes the problem. Also check and confirm that fuel pump is functioning properly and the fuel filter is not clogged. One of the easiest ways to check for a fuel pump related problem is to spray a little starting fluid into the air intake while trying to start the jeep. If the car starts momentarily, then there's a good chance the fuel pump is not working or the jeep is out of gas. You can also listen for the fuel pump's humming sound when the key is first turned on. Also if a inoperative fuel pump is suspected, a good technician will always check to verify there is power and ground being supplied to the pump, to eliminate the possibility of a bad relay or electrical issue. Fuel pressure can be checked with a pressure gauge and if there is pressure, pulse can be checked at the fuel injectors in several ways including the most common, with the use of noid lights. If the injectors don't have pulse the engine won't start. ---------- This troubleshooting tips will help you to solve the problem. Thanks. Helpmech.

Does you fuel pump delivers fuel. Is it there a spark.

If all the coils are giving spark now,then you moat likely have gas fouled plugs now,so change them out with new ones,all 8 of them.If you do not have spark on all plug wires,pull the timing belt cover,and align the cam shaft and the cam,to see if the belt has jumped.If It hasn`t,replace the crankshaft sensor.

You will want to find out if you are not getting spark or not getting fuel.
If no fuel, then bad fuel pump, plugged fuel filter, or bad fuel pressure regulator, or bad fuel pump relay.

If no spark, then bad crank sensor, or ignition module, or coil packs.

Check the ignition switch please. Had that on a 93 Ford that it was bad and the coil wasnt getting any electricity while the switch was in "start" position.