Head lights come on when key turns on engine primes when switch turned on then I push the start button and silence nothing click switch off and on a few times then the button may start after 10 trys

Sounds like a fuel pump issue.

hi Roy.
The starter won't crank. If nothing happens when you turn the ignition key to the "Start" position, it means that the starter motor doesn't turn over the engine. Most commonly this could be caused by a dead battery; here is How to check the battery. ... The ignition switch could be bad - it's a common problem.13 Aug 2013

Why a car won't start - troubleshooting tips - Samarins.com

How do you fix a car that won t start?
When your car responds with silence or clicking:

1. Turn on the car lights. ...
2. Tighten and clean the battery connections and try again. ...
3. Jump start the car.
4. If this works, immediately have the battery tested, especially if it's old. ...
5. Things could still be worse - such as a bad starter or alternator.

Car Won't Start? Here's What You Should Do ' GEICO

https://www.geico.com/more/driving/auto/auto-care/what-to-do-if-your-car-wont-start/ Search for: How do you fix a car that won t start?

If you were able to push start it I will assume you have a manual trans.
A mechanic would check for voltage at the starter and trace back to the key switch. There is a clutch switch in the circuit too.

Your starter motor is either not getting power or in need of replacement. Otherwise, there is nothing wrong with your car.

Also check your battery connections for no corrosion there as well as by the starter motor. Low voltage circuits in a car are extremely vulnerable to poor contact issues.

Sorry bud you need a starter, relay contacts in the starter are very dirty or just plain worn out.

Do the lights on your dash come on like they should?
IF SO, try starting the vehicle in neutral!

try giggling the shifter or starting it in neutral--possible interlock switch failing. Also could be your anti-theft system--try using other factory key

If you hear a click then nothing happens then 1- Either the battery is weak. Stereo doesn't need a lot of current. You can turn on the head light and horn at the same time so see if your battery could deliver all current needed to justify the battery. 2- Or your starter solenoid is bad, its poor contacts inside could not carry enough current to the starter to turn over. If you hear nothing, everything is quite then there is a problem with the safety switch at your transmission shifter. This switch is to recognize the Park position before enabling a circuitry to the solenoid starter.

Is this a manual or automatic tranny? I would be looking at the gearshift selector, did you try starting it in neutral, as opposed to park, if it's an auto, and how about a switch on the clutch pedal to prevent starting in gear, if it's a manual? How about wiring to the neutral safety start switch? Any fuses, circuit breakers been checked? What year truck?
I'm just throwing things out there, just to check before you spend any more money that you don't have to.
I could use a battery, right now- got an extra one?
:-)

Good luck and keep us posted.
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the other thing it could be is a bad cable deisel and not just dodge are very bad for coroding then block where both batteries join together