Question about 1994 Buick Roadmaster

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I have a 1994 buick roadmaster with a 5.7 i changed the fuel pump and the relay i still have no power to the fuel pump

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Hi! The problem can be on the car's computer. If the line on the computer that triggers the fuel pump is faulty then you'll have a fuel pump failure. I strongly suggest that you swap the computer as a first course of action. Hope this helps and thank you for using FixYa!

Posted on Oct 24, 2010

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1 Answer

How to change a fuel pump for a buick roadmaster 1995


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1992 Buick Roadmaster no power to fuel pump. New fuel pump and changed the ecm ...please help


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Still no turnover on buick roadmaster, could it be fuelpump relay?? I had same problem last week & replaced fuel filter & it started & ran great, this morning, same problem turns over & no...


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Replaced fuel pump, pump wiring harness, fuel


Fuel Pump RELAY & FUSE CHECKED & DO you Have POWER "TO" Fuel Pump ? ALSO OIL Sending Unit Supplys the GROUND To Fuel Pump , This is A Saftey FEATURE that Shuts Down Fuel If ENGINE Looses OIL PRESSURE . And If This OIL Sending Unit or also Called (OIL PRESSURE SENSOR) << If It FAILS it WILL Cause What Seems Like A Fue Pump Problem But Is Rally Just The Sensor that is BAD. HOPE this Sheds Light on Your Problem !

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Apr 10, 2009 | 1994 Buick Roadmaster

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