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Relieve fuel pressure

I need to replace my Fuel Filter. How do I relieve the fuel pressure

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Posted on Jan 02, 2017

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

  • 74 Answers

SOURCE: How do I relieve the line pressure before removing the fuel filte

open fuel cap then on fuel rail u will have a stym that looks like valve stm on a tire prees the center of that to relieve prssr then need a small tool to femove filter slip over the line push into filter seat will releas --do tank side 1st and on new filter u will have rubber caps save 1 -after u remove 1st line place cap over the filter inlet wiil stop gas frm going all over u then same on out let

Posted on Apr 19, 2009

  • 82 Answers

SOURCE: 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!

Posted on May 05, 2009

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1 Answer

How do I know if I need to replace the fuel pump on a 2000 jeep grand Cherokee laredo 4.0


Hi Rebecca,what is happening to think your fuel pump is bad,it may be a clogged fuel filter,usually change it first and see if it does better.Here's a link to replace the fuel filter. Repair Guides Fuel Filter Removal Installation AutoZone com First you must relieve the fuel pressure,here's how. Repair Guides Relieving Fuel System Pressure Relieving Fuel System... Here's how to replace the fuel pump. Repair Guides Gasoline Fuel Injection Fuel Pump AutoZone com Also check your air filter too.Also your fuel injectors could be dirty and need cleaning,let me know what all it's doing so we can pin point the problem,k.

Oct 12, 2014 | Cars & Trucks

2 Answers

1985 Nissan 300ZX I want to disable the fuel pump to relieve the pressure before replacing the fuel filter. Is it a relay or a fuse?


No need to remove any relay. Proceed as follows:
- Park the car in shaded and well ventilated area.
- Remove the negative battery terminal.
- Loosen the fuel cap, fuel filter banjo bolt, push on or pipe clip.
- Wrap a piece of cloth around the connecting end of the pipe and remove the pipe.
CAUTION:
Let the engine cool down about half an hour before you proceed.
Keep your eyes away from the gasoline splash.
Keep any flame away.
Dry up the area immediately.
NOTE:
It is always better to get the job done by a qualified personnel.

Feb 23, 2014 | 1985 Nissan 300ZX

1 Answer

How to relieve gas pressure off fuel filter of 1994 2.2 liter plymouth sundance


disconnect power supply to fuel pump, then start engine when engine stalls fuel pressure released

Jun 02, 2012 | 1994 Plymouth Sundance

2 Answers

How do I install a new fuel filter?


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Important: There is no service interval for in-line fuel filter replacement. Only replace the in-line fuel filter if it is restricted. 1. Relieve the fuel system pressure. Refer to the 2. Raise the vehicle. 3. Remove the fuel feed quick-connect fitting (4) at the inlet of the in-line fuel filter (3). 4. Remove the threaded fitting at the outlet of the in-line fuel filter (3). 5. Drain any remaining fuel into an approved gasoline container. 6. Inspect the lines for cuts, swelling, cracks, and distortion. Replace the lines as required. 7. Inspect the O-ring on fuel filter outlet pipe for cracks or damage. Replace the O-ring as required. 8. Inspect the fuel vent pipe (2). 9. Inspect the fuel return pipe quick connect fitting (1).

Oct 21, 2011 | 1999 Oldsmobile Aurora

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

I need to replace my fuel filter. need to know where it is and what i need to do to access it.


Hi,

Regarding Fuel Filter - Under vehicle, driver side, below seating area, front of fuel tank, mounted on chassis in fuel line.

A device located in the fuel line to remove impurities from the fuel before it enters the carburetor or injector system.

INSPECTION

Fuel filters can be located in a fuel line, in the tank, in a carburetor, or in any combination of these. A carburetor often has a filter behind the fitting at its fuel inlet.

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A carburetor inlet filter. Courtesy of General Motors Corporation, Service Technology Group. Fuel filters that are installed on the outlet side of a fuel pump are called outlet filters.

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An external fule filter. Courtesy of General Motors Corporation, Service Technology Group. Engine heat causes fuel to vaporize, which can result in vapor lock in the filter. Some fuel filters have vapor return lines to allow for expanding vapors and fuel to return to the tank.

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A fuel filter with a vapor return outlet. Courtesy of AlliedSignal Automotive Aftermarket. Fuel injection systems require larger, heavier duty filters than carburetors. They filter out smaller particles of dirt while still allowing the pump to supply a substantial amount of fuel.


REPLACE

Fuel filters and elements are serviced by replacement only. Some vehicle manufacturers recommend fuel filter replacement at 30,000 miles (48,000 km). Always replace the fuel filter at the vehicle manufacturer's recommended mileage.
The fuel filter replacement procedure varies depending on the make and year of the vehicle and the type of fuel system. Always follow the filter replacement procedure in the appropriate service manual. The photo sequence below shows a typical procedure for relieving fuel pressure and removing a fuel filter.
Removing a Fuel Filter on an EFI Vehicle
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Disconnect the negative cable at the battery.

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Loosen the fuel tank filler cap to relieve any fuel tank vapor pressbae0f2b.jpga678067.jpg

Connect the fuel pressure gauge to the Schrader valve.

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Install the free end of the gauge bleed hose into an approved gasoline container, and open the gauge bleed valve to relieve the fuel pressure.

Oct 08, 2009 | 1997 Chevrolet Malibu

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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