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How do you relieve fuel system pressure - 1999 Buick LeSabre

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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  • 375 Answers

SOURCE: car won't run after changing fuel filter

try to clean up your gas tank .it also can be a bad Oxygen sensor Fuel filter not so expansive around 30 40 bucks and might save you the hassle.... by it being the cause.

Posted on Jun 26, 2008

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husni_g2002
  • 112 Answers

SOURCE: How do I relieve the fuel system pressure on a '96 Mazda 626?

remove the rear seat cushion ,remove the fuel pump access cover ,start the engine and wait for engine to stall ,then turn the ignition off , the fuel system is now depressurized.

Posted on Jan 25, 2009

moparownr
  • 667 Answers

SOURCE: how to relieve the pressure on the fuel system in

look for the fuel rail, it should be the chrome pipe that runs between all of the injectors, there should be a plastic cap that you can unscrew and under it should be the pressure check port, it looks like a regular tire valve, with the ignition key OFF push the valve in and the fuel pressure will be released, fuel will also be released so be sure you have a rag handy, and don't look into the valve when you push it

Posted on Mar 20, 2009

GM Elec
  • 1000 Answers

SOURCE: 2000 Chevy Venture Fuel Pressure Regulator

Locate your fuel pump fuse in the under-hood electrical center. Start the van ( cold engine ) and remove the fuse. When the engine stalls, the fuel pressure will have been depleted in the rail. You will have a small amount of residual fuel in the line but no pressure. Place a rag under the regulator to catch the dripping fuel.

Posted on Mar 22, 2009

Smooth_Gecko
  • 125 Answers

SOURCE: How Do I Relieve The Fuel Pressure to change the

Remove the fuel pump relay and disconnect the battery first.
Loosen the hose clamp on the fuel rail a little at a time very carefully, and put a rag over the area if you can, to avoid a squirt of fuel in the eyes.
Wiggle the hose with care and both hands free and the rag over the whole lot to dump the pressure.
There is not much volume there, just a lot of pressure.
Be very careful about clearing the area of any ignition sources and wearing some goggles or a face shield can be a very smart move.

Posted on Oct 15, 2009

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Remove fuel tank, replace pump.

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I am changing the fuel filter on a 2005 ford freestar, I want to know how to relieve the fuel pressure . do i just remove the fuel cap or is there a fuel pressure relief valve in the engine bay.


Please don't forget to rate! Thanks!

Relieving Fuel System Pressure

Locate the fuel pump relay in the engine compartment fuse block at location K4/C-1051. Remove the fuel pump relay. Start the engine and allow it to idle until it stalls. Crank the engine for 5 seconds to ensure fuel supply manifold pressure is released. When vehicle service is complete, reinstall the fuel pump relay and turn the ignition on to pressurize the fuel system. Start the vehicle and check the system for leaks.
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Jul 08, 2011 | 2005 Ford Freestar

1 Answer

Honda Civic Coupe. Year 2000 1.6. How can I depressurize the fuel system easily to change the fuel filter situated in the engine compartment.


Hi,

IMPORTANT: Do not skip the fuel system pressure release step. Injury and other damage can result!
Safety Step! Relieving Fuel System Pressure
· allow engine to cool
· relieve fuel system pressure
· put on your eye protection
Before you begin the job of replacing your fuel filter, you must relieve the pressure in your fuel system. A fuel injection system operates under very high pressure. If you don't release this pressure before you start unscrewing fuel lines the result can be explosive. Do this before you attempt to change the fuel filter.
To release the pressure in your fuel lines (and fuel filter) you'll need to locate the fuel pump fuse in the fuse box. If you don't have a fuel pump fuse, find the relay that operates the fuel pump. Once you've found the fuel pump fuse or relay, start the car. With the engine running, pull the fuse or relay out. If you pulled the right one, the engine will quickly die. Since it's using all of the pressurized fuel in the system, the fuel lines won't be pressurized when you crack the fittings on your fuel filter.
Now that you've relieved the fuel pressure you can remove the old fuel filter.
If you didn't do this yet, you must go to the previous step and do it. Very dangerous!

Best regards.

Oct 28, 2010 | 2000 Honda Civic

1 Answer

REPLACEING FUEL FILTER


Pressure Relief
Special Tool(s) EFI/CFI Fuel Pressure Gauge
310-012 (T80L-9974-B) swn~us~en~file=ani_caut.gif~gen~ref.gif WARNING: Do not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel related component. Highly flammable mixtures are always present and may be ignited, resulting in possible personal injury.
swn~us~en~file=ani_caut.gif~gen~ref.gif WARNING: Fuel in the fuel system remains under high pressure even when the engine is not running. Before servicing or disconnecting any of the fuel lines or fuel system components, the fuel system pressure must be relieved to prevent accidental spraying of fuel, causing personal injury or a fire hazard.
  1. Remove the schrader valve cap and attach the EFI/CFI Fuel Pressure Gauge.
  2. e5e3ebf.gif
    NOTE: Open the manual valve slowly to relieve the system pressure. This may drain fuel from the system. Place fuel in a suitable container.
    Open the manual valve on the EFI/CFI Fuel Pressure Gauge slowly and relieve the fuel pressure. 9deacdd.gif
    Filter Removal
    1. Relieve the fuel pressure; refer to Above.
    1. Remove the fuel filter (9155).
      1. Disconnect the fuel lines
      1. Remove the fuel filter from the fuel filter support.
      2. b717c63.gif
      1. Push Connect Fittings
        Special Tool(s) Fuel Line Disconnect Tool
        310-S039 (T90T-9550-S) 4bbcf9e.gif
        1. Relieve the fuel pressure; refer to Pressure Relief in this section.
        1. Disconnect the safety clip from the male hose.
        2. Install the fuel line disconnect tool and push into the fitting. f0af03c.gif
          Install the fuel line disconnect tool and push into the fitting. 367328f.gifSeparate the fittings.
          • Inspect for damage.
          • Clean the fittings.
          • 3beef33.gif

Sep 02, 2010 | 1998 Ford Explorer

1 Answer

Is fuel system pressurized when not running to change fuel filter


Yes, there is still pressure in the fuel lines even when the vehicle is not running. You can relieve the pressure by depressing the valve on the fuel line in the hood compartment. Be sure to use a rag. Also, take off your fuel cap to relieve additional pressure in the system.

Jan 03, 2010 | 1998 Ford Explorer

1 Answer

Relieving fuel pressure on 2005 Chevrolet Tahoe


Pull out the fuel pump relay and start the engine, let it run till it goes dead. fuel pressure relieved!

Apr 25, 2009 | 2005 Chevrolet Tahoe

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