Oldsmobile/Buick Repair: 89 oldsmobile cuttless ciera, fuel pump relay, dash lights


Question
I ran out of gas completely in my 89 olds cutless ciera then filled it up and it ran fine then parked it for 5 minutes and it would not start, as if it was out of gas. I let sit overnight. came back disconected the battery, reconnected and then it started. It now seems to start and run fine if left for a day, but if i drive it somewhere, park it and try to restart it within an hour it seams to be out of gas. I know that this may be a tail-tail sign of something? Can you please help?

Sincerly,
Jeff Doud

Answer
Do this test when you think the fault is going to occur.

Fuel pump test:

1. Get yourself a helper.

2. remove the gas cap.

3. have one person listen in the gas tank at the gas cap opening.

4. have the other person turn the ignition switch to the ON position ONLY so as the dash lights come on. Do NOT attempt to start the engine.

5. As soon as the ignition key is turned to the ON position, The person at the gas tank should hear the fuel pump run for TWO SECONDS and then it should STOP.

6. Does it ?.

7. If it does NOT run for the 2 seconds the fault is either the fuel pump or the fuel pump relay .