I know nothing about the Key switch, hopefully the PCM is it!
I have faith.

 

I don't think I am going to solve this problem.Changed PCM and nothing changed.

 

willdikem66,

The PCM did not help. I replaced the ignition switch and the also replaced the key thingy and it did not help at all. Still doing the same thing. I am very disappointed in my truck. Went and bought another ASD relay to try that again I was told that could be the problem, but I am doubting it. I have also heard that the relay, sensor, etc on the tranny could be causing the problem. Now what???

 

It sounds like you've done a lot, but for our benefit, can you run down the basics?
Can you verify spark on all 8 plugs?
If you spray starter fluid in the plug wells, does it fire at all?
If you spray starter fluid in the throttle body while cranking, does it fire at all?
Can you verify proper fuel pressure and volume?
Have you checked the major ground points?
While it cranks and does not start, is the exhaust rich with fuel?

 

Right now since the ole man is not at home, I can tell you that the fuel pressure was 50-52 and It only cranks once and puffs from the throttle body and out the exhaust once, then we have to turn the switch off and do it again. I do know that faulty spark plugs can be bought new, and they have been changed. I can have my son help me check everything else if it stops raining long enough.I didn't know that you could spray starter fluid in the plug wells. I have a question. Does my truck have a rubber/plastic hose that is suppose to connect to the starter? My son said he took one off and it broke into, He didn't know where it went to besides to the starter. Would that be a possibility? I know more about a Chevy than a Dodge. lol Yes, I have worked on many vehicles, being a female, I can do most mechanic work myself. Hubby took a friend to his doctor's appt and is wanting to sell the truck to him which he is willing to buy it. I don't want him to sell it. I will let you know as soon as I get those checked out. Thank's to everyone who has tried to help fix our truck. Just talked to hubby on phone, he said it is rich in fuel.

 

He has just about hit all the good points to look at or look at again.
Grounds have been know to really mess with a truck.
Pete56 says its rich but if you hold your hand over the TB it cranks? That seems weird.
I really do hope you figure out the problem, ive never seen anything take on so many parts and not run any better.

 

So when it doesn't start, it only cranks over once and stops? Like if you hold the key, it does not continue to crank? I was going to suggest having the starter tested, but it sounds like something on it may have broken. The tube you talk about, I really can't picture, but it's possible that's just the overflow hose for the coolant tank. Any pictures of it ?

If it really is having issues where it's not cranking, try and remove the spark plugs and turn the engine over. It should turn over really easy. You might want to unplug the injector harness first, as you could get a lot of gas in the system.

You can spray a little starter fluid in the plug wells. I mean, pull the plugs out and spray it in, but yes, it will help say if you have a spark. Be really careful if you spray in the intake. That can cause back fires.

 

Buggsy,
I think I didn't word it correctly. I turn the key to start, it will turn over and hit like it wants to start and then it stops. You can do it multiple times and it might start and it might not. If it starts it runs smooth, no missing, purrs like a kitten. Runs great.
But, if it don't start, you have to turn the key completely off then turn it back on to run. Doing this over and over until it starts.
If you take your hand and put it over the throttle body it will start every single time and run perfect.
If he takes it out on the road or hit the gas quick and hard it will die. Just holding the gas down easy it will stay running. If you rev it up easy it will run. He run the truck for two days and didn't quit at all, he put the ATV on the back and it made him pulling a heavier load and it quit more often. If he pulled off the road, sometimes it would start back up and sometimes you would have to put your hand over the throttle body. Go until it quits again.
But it runs really good when it runs.

 

I'm still just a little unclear about what you mean when you say "it stops". If you hold the key, does the engine continue to crank, or does it just randomly stop?

I think this has been said, but it's sounding like a vacuum leak. I mentioned the Idle Air Control valve before. Have you pull it out out and made sure it at least moves? If the valve was stuck open or closed, I can see that being an issue. While you are at it, the throttle body plate should be completely closed. The IAC valve lets air in at idle, so any openings in the throttle plate are bad. Starting with your hand over the throttle body is a very odd symptom.
Having the engine die when you hit the throttle can also be a vacuum leak. For example, the engine torques under high acceleration and this can flex open cracks in the manifold or various vacuum lines. This is probably a good time to say that you can take it to a shop and have them do a smoke test to look for any leaks.

Try this just to try and separate some symptoms. Instead of putting your hand over the whole throttle body, try to put a finger over the small opening just below the throttle plate. That's where the idle air goes in.

 

Buggsy,
I will have him try that and see what happens. Will let you know
Thanks so much for your help. I will have him check the IAC. I priced that yesterday. Pete took the TP sensor off yesterday because the gasket had not been put on. The whole thing fell apart. Gonna have to start making my own parts, I guess. That is an Advance Auto, special for ya. Not to disrespect all of their parts, stores or the people.
Rebecca/Pete