I was driving my 2003 Alero and the car just quit like it ran out of gas,but have lots of gas,no secuity light on nothing like that. I had it towed.there is no codes that came up and the service engine light was never on , it just quit running,it turns over but won't start like it is not getting spark or no fuel .it is a 3.4 engine v6,this was yesterday and today still won,t start ,lots of battery and all the gauges,pw,pd. and lights all work fine ,where do I start looking

Welcome to AF.

Check fuel pressure at the rear fuel rail. There is a Schrader valve to connect a fuel pressure tester. Checked at ignition to ON - fuel pump prime.

Also, you should hear the fuel pump prime for about 2 seconds.

Welcome to AF.

Check fuel pressure at the rear fuel rail. There is a Schrader valve to connect a fuel pressure tester. Checked at ignition to ON - fuel pump prime.

Also, you should hear the fuel pump prime for about 2 seconds.
I will check that todat thanks