2003 Chevy Malibu; Car quits running and when it wont start the car has no fuel pressure and the fuel pump will not run. Every time you decide to trouble shoot the car will Run and can go for days before it decides to quit again. Had to have car towed twice because of this problem.

SOURCE: 2003 Chevy Blazer won't start

have the computer checked out. may need reprogramming and have updates added. also check for loose or corroded connections at the terminals.

SOURCE: 1998 Chev Malibu starts then stalls

The most likely cause for the problem you are describing is the anti-theft system. GM calls it a passlock system. Your car has a 'key-reader' mounted on the ignition lock cylinder (inside the steering columnm, or inside the dash, depending on where your key goes). This 'key-reader' sends out a signal to the body control module indicating that the proper key is in the ignition. Note: this style antitheft system does not have 'chip' in the key. These key-readers fail frequently and send a an incorrect singal the the module, where the car will start and run for a few seconds, then stall. An easy verification of this problem is to watch for your security light to be flashing somewhere on your dash. The passlock cylinder is only available from the dealer, and while it is a fairly easy part for someone like me to change, I do not recommend it for someone who is not a mechanic. Additionally, even if you do change the passlock cylinder, you have to perform a re-learn procedure or the car will never start. This probably isn't the answer you wanted to hear, but better that you know. Hope this helps!

SOURCE: the cruise quit on my 92 s10 how do I trouble

There are 2 switches on the brake pedal 1 for the brake lights and 1 for the vac dump for the cruise. Make sure the switch for the cruise is closed with the brake pedal up. If that is not it it is probably the sevo unit under the hood

SOURCE: 1984 camaro z28 gas gauge

float arm in the tank is either stuck or broken. its connected to the fuel pump assembly

SOURCE: 1999 chevy blazer wont start

THE FUEL PUMP IS BAD.

if your losing fuel pressure after the pump runs the drain back valve in the pump has failed.

and i doubt that you are seeing enough fuel pressure to run a vortec engine.

low fuel pressure equals a non running vortec