Truck wont start

[mrmudd]

Turn key no noise no dash lights have accessories. Good battery, starter, relay, fuses. Any ideas? Maybe ignition switch?

 

[turkeybird56]

Turn key no noise no dash lights have accessories. Good battery, starter, relay, fuses. Any ideas? Maybe ignition switch?

Year truck, model, trim level, engine installed would help. Also age of battery.

 

[mrmudd]

2003 dodge ram 2500 slt 5.7L not sure of battery age, guessing about 4 years old. Had it tested and it tested at 800 cranking amps

 

[turkeybird56]

Before below: turn on headlights and turn key, if lights go out: either battery or connection, see below.

1) Check all grounds and make sure they R OK, if U have to, pull off, clean, grease, re-attach.
2) Check connections on starter and solenoid.
3) Insure terminals on battery clean, and greased and tightened appropriately.
4) U need that battery tested under a load, not just shows cranking amps, cause under load battery could fail.
5) Might be time for battery.

After all above, no dice, try the old whack a mole, give starter a few good whacks with hammer, but not try and run a spike.
See if turn over now.

After this, if turns over after whack hammer, starter/solenoid prob going bad.

Also can try, jump over posts on starter with key in run position (Insulated Screwdriver). If turns over, may start, then U got another rabbit hole, could be win module (ignition). (You also may have a bad cable going down to the starter).

AFTER all above, U may have to get to a GOOD independent mechanic, tell him what U have done, and let a mechanic that knows how to troubleshoot check it out.

All above IMHO. And FTR, not a mechanic, all above just my skerry thoughts.