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Where is the fuel pump on a 1994 buick roadmaster

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In the fuel tank.

Posted on May 29, 2010

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Posted on Jan 02, 2017

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How to change a fuel pump for a buick roadmaster 1995


you have to drop the gas tank fuel pump is located inside

Mar 27, 2012 | 1995 Buick Roadmaster

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My Buick roadmaster 1994 won't start changed the fuel filter but that didn't help put a brand new battery in it and it is not the starter.


Have you checked the fuel pump or fuse? First check for a blown fuse. I belive that is an electrical pump, when you turn the key on with engine off, you should hear a slight whine. The whine is the pump turning on and sending fuel to the enigne. Another way to check is to hook up a fuel presseure gauge to the fuel rail on top of the motor. There will be a rail that conects the fuel line to the injectors the rail is near the spark plugs, there should be a "capped" connection on the end of the rail. Remove the cap, hook up your gauge and check the pressure. Pressure varies w/ model, but it should be above 20psi. If you don't get a reading with the key on that indicates the problem is with the pump or the wiring going to the pump. Do a quick voltage test with the pump connections if you get 12 volts the pump is bad, if not there is damage to the wiring, a fuse is blown or the solenoid for the pump is bad. Avg life for a fuel pump is 100,000 to 150,000miles

Sep 05, 2011 | 1994 Buick Roadmaster

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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...


more likely fuel pump itsself. More likely the fuel pump is getting weak, getting stuck, or plugged. Fuel injected systems need a lot of pressure, so if you're not getting a lot of fuel out of the rail, then the pressure's not adequate.

Oct 16, 2009 | 1994 Buick Roadmaster

1 Answer

Last week, had same problem 1994 buick roadmaster car cranks, (turns over)& no start changed the fuel filter, car turned over & ran fine for 1 week, now same problem?? can someone help me??


Hi,
I might suggest pouring a fuel additive in your tank. Possibly you have some condensation/bad gas. Pour it in and let it sit overnight. See if it helps... it won't hurt.
Good luck!

Oct 16, 2009 | 1994 Buick Roadmaster

1 Answer

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 !

Sep 30, 2009 | 1994 Buick Roadmaster

1 Answer

Change fuel pump assembly Buick Roadmaster 1993


Yes you can, its on the Passenger side of the car, right under the back seat under the floor board, track your fuel line from the tank to there. Good Luck.

Dec 12, 2008 | 1993 Buick Roadmaster

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