2003 Silverado Wont Start

[Super Step]

Can you try jumping it down at the starter, just to see if it will turn over, and maybe crank?
I am not sure how to do this on the newer vehicles with out looking at it.
But what brought that to mind was me cranking the lawn mower for the first time this since fall, week end. I used a screwdriver and just bypassed all the electrical connections, just to see if I was getting enough juice to the starter. It cranked up (once I turned the switch on ).
I do not know the technical term for the post on the starter, but I have jumped from the hot to the other post to see if old vecicles would turn over.
It should work on a newer type truck.

[mudseeker]

if the engine makes no attempt to crank, fuel delivery would have nothing to do with it. did the truck sputter like it was trying to find fuel?

block the tires and try starting the truck in neutral. if it starts you need a new neutral saftey switch. this would have nothing to do with the truck stalling.

if the starter is still good you would atleast hear a "clunk" .check the wires from the battery to the starter, could be loose or corroded (happened to my van, had lights but no crank). also check your ign. switch, do your lights dime when you turn the key? hope this helps.

[superdave]

If I hear ya correctly, the engine does not turn over right. There is no sound when you turn the ignition? I would say its the alarm. Is it factory or dealer installed? Find the main ignition wire from the switch. I want to say it will be solid yellow but not sure. It will route from switch to the alarm. Then find the wire going to the ignition relay coming out of the alarm. Jump these two wires together and try it to see if it fires. If it fires then its the alarm. if it doesnt fire then check the Switch and then the ignition relay.

Also try this first as stated in a earlier post, turn the switch to the on position. Grab a screw driver and crawl under the truck on the passenger side behing the front wheel. Reach up and bridge the connections on the starter soleniod. One will be the thick cable going to the battery positive terminal and the other will be the small gage wire going to the ignition relay. Bridge these two together and it should start. If it starts then it will be a broken circuit from the switch or relay. Hope this helps.

[gmtech]

If you have no chek engine light and don't here the fuel pump run the most likely cause is the igntion switch we have alot of problems with them unless like someone else said if you have an aftermarket alarm that could also be your cause

[wooodup]

You Might Try To Ask A Machanic If It Could Be Your Electric Fuel Pump. Ive Been Told Before Not To Run Your Fuel Down Low It Hard On Fuel Pump.

[Faxcion]

The battery cables might be able to run all of the accessories in your truck but as far as being able to turn over your starter, but they might not be able to handle the crank wattage. Try replacing your battery cables and terminal connectors. If its throwing a CEL get a hold of a code reader and see if it can tell you anything.

[Hayden]

Do you have an aftermarket Alarm installed in it? If so something could be wrong with that. Have you had it out muddin at all. if so it almost sounds like a wire for your ignition came loose from the back of your fuse box.(happened to me once). Check all fuses (i'm sure you did that).