Question about 1990 Buick Century

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Where is the fuel pump fuse for a buick century 1990

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The fuel pump for a 1990 Buick Century is located inside the fuel tank.

Posted on Jun 16, 2010

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1 Answer

1990 buick century starts then dies


Have you checked base fuel pressure with a gauge ?
Have you figured out if you are loosing spark or fuel when the engine dies ?

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Check your fuel pressure at the schraeder valve that is on the fuel rail. If you have fuel pressure, check for spark.If no spark, then ignition diagnosis is needed.If no fuel pressure, check for diconnected, or pinched wires, as this can easily happen during an engine swap.

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Sounds like your fuel pump is weak so i would check the fuel pressure first.The fuel pressure should be 40-47 psi with key on and engine off and 31-44 psi with engine running.If its not within these specs then replace the fuel pump.

Aug 04, 2011 | 1990 Buick Century

1 Answer

1990 buick century


It sounds like the engine computer. Also check the resistance in the injectors and o-rings. O2 sensor and coolant temp sensor could give you a problem.

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Nov 09, 2009 | 1993 Buick Century

4 Answers

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The fuel pump is starting to go. The fuel pump sending unit which is part of the fuel pump is over heating in time and shutting down. This is causing the fuel pump to shut down.
I would replace the fuel pump and filter.

Good luck

Jul 18, 2009 | 1990 Buick Century

1 Answer

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Check fuel pressure after replacing filter. Fuel pump may be going bad.

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