Important!: No start issue!!!

[welsh907]

Have an 01 silverado 4.8 auto. My bagged truck. Disconnected the positive battery cable to weld on my tubs. Reconnected it and truck will crank and crank and crank, but will not start. Figured it might be low on gas. Threw 5 gallons in it, still nothing. I have spark, have power to all ignition fuzes. Tried pulling my intake off and spraying it with starter fluid. Didn't even try to fire.

Anyone have any ideas what might have happened or what the fuck is going on.

Got me so mad because I just spent $600 in registration bullshit just so the bitch could move, and now it won't start. Got me so frustrated because it was outside and I couldn't push it by myself. Ended up going to punch the door, missed and punched the window.

ANY idea what the fuck is going on with this truck?

 

[loclrnc]

Fuel pump go out?

 

[Jared]

check the relay, make sure while you were welding it didn't arc something out.

 

[welsh907]

Fuel pump go out?

Nope. I can listen to it cycle on and pressure up.

 

[welsh907]

check the relay, make sure while you were welding it didn't arc something out.

Hate to sound so dumb, but how do you check a relay?

 

[Jared]

try a known one that works

 

[welsh907]

Ok. I'll try that after the funeral today.

 

[welsh907]

Went and bought a new ignition relay, no go. Still cranks and cranks but won't attempt to start.

 

[Khaos]

Check the ignition fuses? Should be a couple 40A fuses at the main fuse block. That's what my issue was a while ago.

 

[Jared]

hmmmm, is the pump humming?

 

[Cheeny23]

when my pump went out it would still make noise and draw amperage but it wouldnt actually create pressure in the lines. just a thought

 

[welsh907]

I checked all ignition fuzes. Idk if the pump is the problem. I manually fed the motor gas and starter fluid and it never even so much as hiccuped.

 

[welsh907]

Bump, anyone else have any ideas?

 

[bgray]

Is the security light on?

When you release the fuel rail pressure schrader does fuel come out?

 

[welsh907]

Is the security light on?

When you release the fuel rail pressure schrader does fuel come out?

I'll check on the security light when I get home.

Where is the fuel rail pressure schrader? Sorry not very tech savy on ls motors.

 

[loclrnc]

If its the security thing, try pulling the bcm, pcm fuses or anything that might have to deal with the computer(s) and plug them back in... it might start then...

 

[fuckfaceon33's]

The shrader valve is near the fuel rail on top of the engine. Theres a silver crossover line iirc and theres a black cap on the valve

 

[welsh907]

Manually fed the motor fuel, so it had spark and had fuel, and didn't even try to fire. I'm at a fucking loss.

Bitch sits there and spins and spins and spins but won't fire. Could a fried ECM be the problem?

 

[Ginger]

could have backfed though one of the grounds and fried it. its a possiblity

 

[Khaos]

Sounds like the security issue to me imo. My last truck would do it occasionally and it wouldn't allow the truck to start. Cranked and cranked, but no start. IIRC it disables the fuel pump as a security feature. But of course, it can just do it out of the blue like mine.