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How do you tell if the fuel pump is bad in a 93 buick century?
Blueyez213
Remove filler cap and turn key to "on" position and listen for humming sound Check fuel pressure: At engine idle 13-20 psi
Key on engine off 23-31 psi
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∙ 16y ago
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How can you tell if the fuel pump relay switch is good on a 93 buick century?
Swap it with another like relay.
How do you tell if your fuel pump is working?
how do you tell if your fuel pump is working
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Hey DKM==You need to tell what kind of car you have as there are so many different types of linkage. GoodluckJoe Try having the fuel pump checked. On a '93 Buick Century I used to have, the fuel pump failed, and the gas pedal immediately went to the floor. Casey
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I'm in the same position with a '93 century, had the same problem with my old '89 olds cutlass with the 3.3 or 3300 motor. the best I can tell so far is that one of the parts previously replaced is bad (you can get the ignition modular checked at O'Reillys or simillar) or there is a short somewhere in the wiring - posibly the fuel pump or ignition systems. Sorry that's where I'm at.
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I can tell you the fuel pump is in the gas tank.
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well if you have fuel and a new filter a good fuel pump relay and the wires going to the fuel pump have power and no fuel pressure you need a fuel pump
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You will have to remove the fuel pump relay or the fuse for the fuel pump. You did not say what year it was, so I can't tell you where it is. SORRY.
