Several tries are needed to start vehicle. After it starts it runs fine.
Try turning the key on an off several times . There is a check valve inside the fuel pump module that is suppose to keep pressure in the fuel lines . This check valve being bad could cause this problem . When you first turn the key on the PCM - engine computer energize's the fuel pump for two seconds to prime the system , but if the check valve is bad ,2 seconds isn't enough . If that doesn't do anything your best to have scan data viewed like in these videos . 011 Fuel System Tests Fuel System Scan Data
Testimonial: "Jeff, the fuel pump, the regulator and the ignition wiring harness have been replaced along with a fuel filter. The problem goes away for a day or so then it reoccurs."
Have you replaced any sensors ? Mass air flow , coolant temp ect... Clean the throttle plate ,IAC - idle air control valve .You need to find a diagnostic direction an scan data is the best way.https://www.youtube.com/watch?v=cnVudBse...
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SOURCE: 91 Buick Century 2.5 L brake light on & battery light on
For the Brake light to stay on and the fluid is up...sounds like your sensor is playing dead......
For the battery to die after only (4) hours..you have a very big drain on the battery itself.....without the vehicle right here to look at would be very hard to even guess...electrical problems are a hands on chore...
I'd take it to your garage/mechainc
SOURCE: 1992 Buick Century won't start sometimes but has spark in the plugs.
Faulty cam sensor maybe - it controls the injectors. To diagnose, when you get a non-start, spray a V.small squirt of easy-start(ether) and if it runs a little then you have a fuel issue. The spark timing is controlled by the crankshaft sensor so that can be faulty and cause a mistimed spark but usually you'll get a mis-fire in those cases.
SOURCE: it start but stalls right away
I had the same problem. It was the fuel regulator that was bad in my 99 Regal. Hope this helps.
SOURCE: 1998 buick century security light stays on but
The security system (VATS/PassKey) is having problems, it's typical on those cars and it gets worse till the car won't start anymore. You can find a great write-up here: http://newrockies.ca , it was the only thing that saved my Park Avenue.
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