I go to start the truck and when i turn the key it attempts to start and automically stops.The really strange is that it has happened 3 times and in about 15min.it will all of a sudden start. I have a code scanner and no error codes come up at all.

Well that kind of sounds like a bad connection, but it was difficult understanding with no good punctuation... Have you checked the battery terminals? If not, do so, and have your alternator checked too. I've seen some really goofy stuff happen when some vehicles don't get enough power.

Do a scan of the car computer, go to a garage and have it connected to a code reader, that will tell you what the problem is.

It may be the starter relay or even the starter. I have had both happen on these cars. a less common problem would be the ignition switch. The starter relay is easy to replace, it is under the hood in the fuse box. Should be listed as starter relay.

I love my Rangers, and it sounds like you need a new starter drive, better know as the bendix. It is cheaper to buy a new starter. As far as the door locks, I would get the starter fixed first and the door lock problem may go away. sounds like the starter is dragging the power down and could cause a number of strange thing to happen. Hope I have help you solve your problem. I think It will.

Very strange. It's possible something is not being powered the first time such as a relay, but its also possible the fuel pump relay is out and you are just cranking it long enough to build up oil pressure.
The fuel pump relay provides voltage to the pump when you turn on the key, then the pump gets voltage from the ECM once the oil pressure shows the engine is running.
You'll need to find out if you have no spark or no fuel pressure on the first attempt to start.

You have a dead battery.
The procedure to fix it is as follows:
1) Charge battery.
2) check alternator belt tension. If loose, tighten or replace.
3) If still no start, replace battery.

Hello there and welcome to fixya
Normally you WILL HAVE THE RESET PROCEDURES IN THE OWNERS MANUAL BUT IF NOT PLEASE TRY THIS pull the positive battery off the post and leave it off for 10 min then reattach it AND ATTEMPT TO START THE VEHICAL IF IT STARTS GREAT HOWEVER IF NOT TRY THIS
turn the key to on DO NOT START THOUGH LEAVE IT THERE FOR 3 MIN THEN TURN THE KEY TO OFF FOR 30 SEC THEN BACK TO THE ON FOR 3 MIN AGAIN THEN REPEAT THIS STEP 1 MORE TIME THEN LEAVE SIT FOR 1 MIN THEN ATTEMPT TO START THE VEHICAL

After you put in the ecu, do the crank relearn, and you're good to go.
Ensure that your battery is fully charged before attempting the relearn procedure. Do not leave any battery charger or jumper cables attached to the battery. Close the hood completely. Some applications require that the doors remain closed during the procedure.
96-99 GM
1. Rotate the key to the start position to attempt to start the vehicle (the vehicle will not start).
Allow the key to return to the all position (same as if the vehicle would have started). The theft system light will flash (or stay lit) on the dash for approximately 10 minutes.
2. When the theft system telltale stops flashing (or turns oft) turn the key to the off position for 5 seconds and then attempt tostart the vehicle. The vehicle should start on this cycle.
3. Once the vehicle is running, the password relearn is complete.

00 + GM
1. Rotate the key to the start position to attempt to start the vehicle (the vehicle will not start). Allow the key to return to the on position. (same as if the vehicle would have started)
2. The theft system light will flash (or stay lit) on the dash for approximately 10 minutes.
3. When the theft system telltale stops flashing (or turns off) turn the key to the off position for 5 seconds and then attempt to start the vehicle.
4. Repeat steps 1 through 3 two more times for a total of 3 cycles/30 minutes.
5. On the next cycle of turning the ignition key from off to crank the vehicle should start
6. Once the vehicle is running, the password is learned and this completes the cycle.
7. Clear any DTC's with a scan tool if necessary. DTC history will be cleared after 100 ignition cycles.
Thank you for using fixya and keep us posted

See if your security light is flashing if it is leave key in the on position untill light stops flashing then attempt to start you may have to repeat this two or three times

Try a new hood switch,the newer type is longer and prevents false alarms.