Question about 2003 Ford Expedition

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How to replace 303 relay on 2003 ford expedition

Posted by Anonymous on

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6ya6ya
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Posted on Jan 02, 2017

  • 5 Answers

SOURCE: how to replace the light bulb on exterior mirror 2003 ford expedition

The one with the turnsignal intergrated into it?

If so.....

Push the Mirror FORWARD, up close to the pivot poit there is a small torx head screw - unscrew that.
At the tapered end carefully pull/pry down. That end has a small metal spring clip that holds it up, be careful with it, if it snaps, you can NOT by a new one...

Posted on May 18, 2009

  • 5467 Answers

SOURCE: need to locate the relay 303 fuse on a 2003 Ford

Here is some information about your problem. If you go to motorcraftservice.com you may be able to see the Owners manual. Starting about page 249 are the fuse and relay Sections. From what the Manual shows, the Relays from 301 to 305 are part of the fusebox.

If you want to service this yourself, go to QCComponents.com. Their part# is 20Z0A11B for the orignial Omron F8VF-BA Relay that is in there. Some people just unsolder the old and replace with the new and solder it in.

This Relay is for your Fuelpump, Fuelpump monitor, and the PCM. It is at location 303.

I would recommend Browsing the F150 and FourWheeling Forums for Technical information about this part and installation. I hope my solutions are very helpful to you.

Posted on Jan 16, 2011

  • 1796 Answers

SOURCE: Where is the fuel pump

Hi!!
The fuel pump relay is integral to the Central Junction Box ( CJB ) and is not serviceable Applies to, but not limited to the following models: Expedition / Navigator -- 2003 - 2006 Excursion -- 2002 - 2005 F-Super Duty 250-550 -- 2002 - 2007
Good Day!! A HELPFUL - 4 THUMBS - rating for this solution would be greatly appreciated. Thank you for using FixYa.

Posted on Feb 15, 2011

boysor2933
  • 293 Answers

SOURCE: replaced fuel pump, fuel filter and relays but my 2003 ford expedition will only run while being sprayed with starter fluid

Check for leaking intake manifold or vacuum hoses.

Posted on Oct 29, 2012

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2 Answers

What is the fuel issue?


Under hood fuse/relay panels on these are bad for water., when it is a hard rain. If 303 is the fuel relay, it wasn't fixed. I have tore panels like these apart to see what was wrong. And they are a mess. Copper wires get hot and bend, shorting out all kinds or fuses and relays. I just replace them now. And cover them. All I can figure is water pours threw them on hard rains. Even when the vehicle is sitting. Repaired many of them.

Aug 07, 2015 | 2003 Ford Expedition

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Passenger side on 2003 ford expedition keep dropping no air leaks


On that system you have 3 ride height sensors. 2 front 1 rear. Disconnect the linkage arm and try to move sensor arm. Should move with little resistance but not loose. If bound up replace,also check 2 remaining sensors. Behind the passenger headlight is your compressor and relay. You can jump the 2 fat wires together at the relay to activate the compressor. The relay has 4 wires 2 fat 2 skinny. They sell a conversion kit to elinmate air ride and have coil struts and shocks. I normally recommend the conversion so the problem doesn't happen again. Nice system till it goes wrong

Mar 14, 2015 | 2003 Ford Expedition

1 Answer

2004 ford expedition fuse box diagram. looking for any fuses that have to do with starter?


In the central junction box, 30A FUSE 101 applies to the starter relay; 30A FUSE 102 applies to the ignition switch.

Mar 07, 2015 | 2004 Ford Expedition

1 Answer

We have a `97 Expedition EL, it randomly shuts off, were able to restart immediately. No check engine light or other information. Very dangerous. I checked on another forum it mentioned about a R-303


I am pretty sure this is going to be your fuel relay. I take it your truck cuts out at strange times and you have to coast to the side of the road? The relay in these is located up in front of the spare tire. Very easy to replace. You will find a corroded covering that exposes the electronics and causes it to fail.

Dec 23, 2014 | 2007 Ford Expedition EL XLT

1 Answer

Fuel pump relay


There is a safety cut-out called the Inertia Sensor. It is usually next to the Air suspension switch behind a panel in the cargo area or behind the front floor kick panels. It has a reset button.
It can trip on impact, a sudden jar, or slam of door. This switch keeps you from burning alive in the event of a accident. It will not work if you bypass the original wiring.
Look up the Inertia sensor, see what the part looks like, read articles, see photos.

Jun 16, 2013 | 2003 Ford Expedition

2 Answers

Where is the fuel pump relay located in a 2003 Ford Expedition . relay # 303. Schematic shows the relay, the vehicle operator manual identifies it but it is not listed in the relay & fuse...


Hi!!
The fuel pump relay is integral to the Central Junction Box ( CJB ) and is not serviceable Applies to, but not limited to the following models: Expedition / Navigator -- 2003 - 2006 Excursion -- 2002 - 2005 F-Super Duty 250-550 -- 2002 - 2007
Good Day!! A HELPFUL - 4 THUMBS - rating for this solution would be greatly appreciated. Thank you for using FixYa.

Feb 15, 2011 | 2003 Ford Expedition

2 Answers

Need to locate the relay 303 fuse on a 2003 Ford Expedition


Here is some information about your problem. If you go to motorcraftservice.com you may be able to see the Owners manual. Starting about page 249 are the fuse and relay Sections. From what the Manual shows, the Relays from 301 to 305 are part of the fusebox.

If you want to service this yourself, go to QCComponents.com. Their part# is 20Z0A11B for the orignial Omron F8VF-BA Relay that is in there. Some people just unsolder the old and replace with the new and solder it in.

This Relay is for your Fuelpump, Fuelpump monitor, and the PCM. It is at location 303.

I would recommend Browsing the F150 and FourWheeling Forums for Technical information about this part and installation. I hope my solutions are very helpful to you.

Jan 16, 2011 | 2003 Ford Expedition

2 Answers

Where is the fuel pump relay switch located?


Where is the fuel pump relay (#303) located in a 2003 Ford expedition. schematic shows the relay but the vehilce component locator nor the dealer have any information and/or knowledge of where the relay is.
rene@centramatic.com

Thanks
Rene

Sep 12, 2010 | 2003 Ford Expedition

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