Question about 1991 Buick Century

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Fuel pump oil pressure switch location 94 buick century

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  • 378 Answers

There is no switch dont look

Posted on Dec 02, 2012

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Posted on Jan 02, 2017

emissionwiz
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SOURCE: Fuel Pressure Regulator

All Fuel Pressure Regulators are usually attached to the Fuel Rail. In any case, they have a return line to the fuel tank. On your engine you may have to remove the pretty "Plastic Cover" that covers the top of the engine to see the fuel rail and the pressure regulator. Look for a "tube" that has fuel injectors going from the bottom of it and into the top of the intake manifold. The fuel pressure regulator is a round looking device attached to the end of the fuel rail with a small fuel line coming out the botttom and a vacuum line attached to the top of it. At least in most cases this is what it will look like.

Posted on Aug 18, 2008

  • 2 Answers

SOURCE: Where is the fuel filter located for Buick Century 2001

The fuel filter is located underneath the car in front of the gas tank.
You have release the fuel pressure. Remove the fuel filler cap, locate the fuel test port on the fuel rail on the passenger side on the end of the right real fuel rail for a 3.1L engine.
3.8L engine yhr test port is located at the pressure regulator under the trim cover.

Posted on Sep 23, 2008

  • 1114 Answers

SOURCE: 1992 buick century fuel pump

IN Gas tank!! if you have no experience with this take it in get it done!! if you have a 1/2 tank of gas you will need a hoist!!or drain it some how that will weigh more than you can handel on your back! on the ground! it is hard to price it!!! if fuel lines ans gas tank straps are all reusable and do not break in the coarse of removal and installation and gas tank has no leaks and can be reused fuel pumps usually run $75-350 yours should be in the $65-$100 range!?? labour? what ever your garage will charge I did two fuel pumps and one new gas tanks yesterday 2 hours! but garages go by flat rate labour guides!!!!good luck hope this helps!

Posted on Jan 24, 2009

  • 2920 Answers

SOURCE: replacing a 94 Buick fuel pump with an outboard electric pump

no it wont interfere at all

Posted on Feb 16, 2009

carputers
  • 255 Answers

SOURCE: where is the fuel pump relay switch in a 95 buick

under the hood in the fuse/relay box by the wheel well

Posted on Oct 10, 2009

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No power on fuel pump in buick century 93, i changed the relay & fuse is ok, that always happen after the car became hot ,next day it wont start


If the fuse and relay is good, and there is power AT the pump, then the pump is bad. Fuel pump power goes through the oil pressure switch but only after engine is running. So there should be power to the pump for approx 2 seconds when you turn key on. There is a RED wire (prime, it will be a single wire poking out near relay) at the fuel pump relay, if you put 12V on that wire the pump should run, IF the wires and pump is good. The GRAY wire powers the pump.

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I have a 94 buick century it cranks but cut right off i change the fuel filter and the fuel pump is pumping,there is gas spraying out of the pressure value.i can keep it running by pressing on the gas but...


Need to pull the codes to see if the throttle position sensor is the problem,or maybe low fuel pressure,have the fuel pressure checked to make sure.

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Im trying to locate the Evaporative emission control system pressure sensor low input on a 2002 buick century?


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Look on the back side of the block to see it it's there between firewall and engine, or take it to a auto parts store and tell them you want to replace the oil pressure switch then ask them to show you were it is and buy it from them. This was common for GM products, it was a safety to keep from burning up motors since customers were to lazy to check oil level but the switch's do go out and they won't run.

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Replaced fuel pump twice but have no power to pump.


Fuel pump relay? The switch is near the oil filter.

Jul 09, 2009 | 1995 Buick Century

1 Answer

94 buick stalls and hesitates


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Apr 26, 2009 | 1994 Buick Century

1 Answer

Where is the fuel filter located for Buick Century 2001


The fuel filter is located underneath the car in front of the gas tank.
You have release the fuel pressure. Remove the fuel filler cap, locate the fuel test port on the fuel rail on the passenger side on the end of the right real fuel rail for a 3.1L engine.
3.8L engine yhr test port is located at the pressure regulator under the trim cover.

Aug 27, 2008 | 2001 Buick Century

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