2000 silverado wont start

Did you reset the inertia switch that shuts pump down in case of collision?

This sounds more like a crankshaft position sensor. When they start going bad they will work when vehicle relatively cold but fail when hot.

Hope this helps, it it does please leave feedback and vote Thank You and Good Luck

i would start simple on this and check the fuel pump relay first. there not that expensive you can try to replace if you cant find specs to test it. if that does not work then i would say its your fuel pump that went out.

It might be the fuel pump, you can test it by pulling off a vacuum line on the intake manifold, then spray a lot of carburetor cleaner into the manifold, then replace the vacuum line and see if the engine will start. If the engine does start and run even for a few seconds, then you have a fuel related problem and it will most likely be the fuel pump itself. (make sure that the carburetor spray that you use says that it is extremely flammable, otherwise it will not start the engine).

had a 2000 blazer 4.3 wouldnt start in really cold enviroment..... ended up being the FUEL PUMP RELAY.... it still running good... bout every ther day or so... but it acted like your truck

Check your inertia switch. This is usually located in the rear interior of the vehicle. It has a reset switch you hold for 3 seconds. It is a safety switch to kill the fuelpump in an accident. Can trip with door closings.

2001 silverado wont start/battery charged stater not turning over or clicking???

not positive but look in owner manual for a fuel pump reset button i had this problem at one time and that fixed it it is usualy under the dash area somewhere on the drivers side or in a kick panel (decorative cover on the side firewalls inside the cab)....good luck i hope this helps!

It sounds like you new switch needs adjusted just a little bit.

Fuel cut off switch or inertia swith on passenger side kicker panel, it might have got accidently kicked while getting out.