2003 Ford Expedition R303 fuel pump relay replacement 

Just replaced my relay. I went to the dealer for the relay and they said the fuse box on my 03 is not serviceable. They wanted $650 for a new fuse box. This is the #1 reason for the internet. People helping others. Thanks for the video. God bless and happy thanksgiving!

Thank you for your time to show and explain the 03 ford fuse box removal and fix and to hear it start after the work. I appreciate it. I am a woman with knowledge to fix and figure out most things. I have saved myself plenty of money.

Excellent video man! I watched several videos on this. I'm a tech, and videos on youtube make my job easier sometimes. Just like you searched for the issue to save time, I did as well. Thank you guys that do these to make it easier for others.

Thanks, mate! Wife's Expedition shit the bed as she pulled into a parking space at a local store (what luck!). Crank, no start, and my first suspects were cam or crank sensors, fuel pump relay, or the fuel pump I've been dreading replacing. Scanned it and found fuel pump voltage low, so I had to find a the relay, which required internet research and led me to your video. Promptly ordered a replacement on my suspicion, pulled the box and took it home to disassemble and repair. I found much less-significant damage to the relay than you had, it was barely noticeable-just a bulge on the side of the relay, and a solder connection that didn't look so hot. Repaired and running Ford for $11. I owe you a beer!

Appreciate your video! Took me an entire day to diagnose my 2003 expedition... After running tests to check the starter, fuel pump, and the pcm relay... It led me to the r303. Omron has an alternative internal relay, since the original is obsolete... part number D8QN-1CE. I ordered mine from Arrow electronics online for only $3.30... I paid an additional $18 for overnight shipping, because this is my daily driver and needed it quickly. (I currently have a relay- bypass ran until I get the new part tomorrow)... I'll be back to watch this video a gazillion more times when I start to solder.

Omg so grateful for people like you! I do not have the money fir a new fuse panel so I’m goi g to try it myself! I may also makes video to hopefully also help others! Thank you so much for sharing! These days more than ever we need to help each other! God bless you!😊

Having the same issue with an 04 Expedition and the fuse panel is exactly the same as Hero 3 and the exact same relay was burnt so I think I have to buy me a new relay in order to get this to work. Thank you so much for a very explanatory video what can you say the great video and I hope anybody else has this problem will look you up and see that a simple fix is all that is needed so thanks again for all your help.

Thank you for the detailed video. After many a misdiagnosis, you were spot on. I bought the Omron replacement relay G8QN from Amazon for $12 and received next day service. Everything is fine now. Once again, thanks for sharing.

This video helped my fix my '03 Expedition! I've had this car for 10 yrs - it has never once not started up on the first turn of the key. Three days ago when I turned the key it would just turn over and over - no gas. I found your video, and since I had recently had multiple roof leaks, I surmised that R303 had to be the problem. Pulled the box - my relay had just a very small bump. Ordered the part on Amazon, and two days later I was was soldering a motherboard (BTW...I've soldered maybe 3 or 4 times before ever) It was the ugliest soldering job you had ever seen - but it worked. $12 later ..and my beloved 2003 Expedition with 212k roared back to life. My entire family thought I was crazy when they saw all of those fuses and my map of the layout - but my Expedition is running. Thanks for this video. Earlier in the week, I was quite sure I was going to have to get a new car - but not now!

Thank you for putting this together. You definitely saved me several hours of frustration. Was able to replace the relay and the vehicle started back up on the first try. Took me about 1-1/2 hours from start to finish.

Hey man I don't know if you're going to see this comment but thank you . Because of you I was able to keep my job and fix my car thanks for the n# provided those people were extremely nice and helpful.god bless you !

Thankyou for your excellent vid. Relay 203: Fuses 32,33,34, Fuel Pump Relay, Fuel Pump, & PCM Solenoids would get real hot at connection stud 5 and would scorch the plastic of the relay. So, with the guidance and caveat about NOT removing the main power feed that you provide in your excellently edited video, I removed and opened the Junction box. None of the internal, 301-305 relays showed any signs of heat fatigue / charing. Only the female connector 5 of R203 had carbon. I sanded it off and reassembled the box. .... It appears I have a failed fuel pump... BUT I also have a parasitic drain of 250 mA that I am in the process of finding the cause. Hopefully it will be the fuel pump.... Again, thank you for the time you spent developing this excellent video.... May 21 2019: Tom Jones, New Orleans

Thank you for this video! My mechanic nor my husband could figure out what was wrong with my fuel pump! Thanks to this video, I was able to pull out the fuse box and change the relay myself! Sure enough, this was the problem.

Excellent video! I had the crank- no start problem and was able to find the fuse box at a local pull apart. Swapped it out and it fixed the problem. Took apart the removed box and the relay was burnt up. Thanks again!

Great video. 2003 Lincoln Navigator here. Same as expedition ford. To add Just as described in this video. To open the top battery clip has a tab, pull that one. For the bottom I used a paint can opener to tab open that bottom clip by pulling down from the second clip. It drop in one piece without removing the fuse box. Also to many fuses to remove and check if its burned. So, After removal if fuse box. Burn out can't be seen well either. So, I tap with a screw driver one of the spacer end. so it wont break and fall in the fuse box. Keeping the box from top to bottom. The second plastic spacer between the second and third relay. I tapped the bottom only and moved some what with a screwdriver and then visible the burned out. Glue gun if need so. Just move back spacer and done mine stays solid. Ebay or junkyard for spare parts relays Great Video man ty👍

That's the way that I like to repair (not extra wire or cut here and plug there) At the same way that they are from the beginning. It's hard sometimes, but it's very professional that nobody noticed that it was fixed before. Thanks for your efforts, so good video

Amazing helpful video. Chasing this same intermittent problem. Previous owner had shop put in fuel pump ND then said ecu is bad now and needs to be replaced. I ordered this relay, going to slap it in there before any more troubleshooting. Same relay just went out on my furnace control board. New board $350. Relay cost $3.50. Alot of control boards I've been finding in fridges, furnace, etc. Have relays failing. Made in China relays in most cases...

Thanks I followed you video and fixed my son’s 03 Expedition!!!

Brilliant video - thanks. we have an Expedition over here in France - imaging getting it fixed here... Replaced the relay as you described - running perfectly now...

Appreciate the video! Just went through this problem with my 04. This fix worked perfectly.

Thank you for this, made a fool of my coworkers at a Ford dealership who couldn't figure this out & joked about the 'youtube automotive school' being a waste of time.

This video helped me get mine done!! Had some issues with the big power cable, but got it sorted and new relay is working great!!

May God bless you sir, thank you so much for taking your time to do this. You helped this young lady figure out her expedition.

Very informative, thank you! Drove my truck to work fine, no symptoms... lunch time and it won't start at all. Turns over fine, but not even trying to start like it has no fuel getting there. I hope this is the fix I need!

I think the same issue just happened to my 03’ Expedition. I’m going to see if I replicate the steps you shared with the same success! 🤞🏼 Thanks for sharing!

Great, you were right on point, thank you, I see the blown fuse, it didn't bust open but a big bubble formed at the bottom of the fuse where it connected with the circuit board, and the other side did have a dark tip on it. Thanks once again.

yes, praise the Lord. I have the same issue with my 2003. thank you so much for sharing this

I like to thank you all for the help through the tutelage you post I repair my suv runs like a champ I am swinging like TARZAN🤠🐅🐯🦁🦍🐒🤠

Awesome video man, helped me a ton and saved me a lot of money!!! I know this video is older but for anyone like me having this issue now and cant find the ebay listing, Amazon sells them Omron Part #F8VF-BA, they also have one listed as "Replaces F8VF-BA" but the part number is the same, should be easy to find. I installed it and it works great, just take your time with the disassembly, soldering, and reassembly and it should go smoothly!!! Thanks again for the video!!!! Also definitly grab some solder wick if you dont have any, made de-soldering super easy!

Thank you so much not only for the video but actually explaining it to me/RU-vid really saved me a lot of money time thank you so much god bless

Just a heads up. I have a 03 expedition eddie bauer 5.4L 4x4 think I have this same problem however I have no codes. I got stuck at work last night was running fine, came out and started it up and it was running really rough. Tried restarting and nothing, cranking super fast and it tried to start a few times but not even close. Watched this video and others on the subject. Ran a jumper wire i got from cutting off the cord of my cigarette lighter air compressor directly from the positive on the battery under the hood to the green wire with yellow stripe, its on the 4 pin connector. Unplugged the connector and stuck the wire in the back side used electrical tape to secure it. Then ran it out the door into the hood compartment being careful not to pinch it I taped it onto the safer area where weather stripping would pad it a bit. Started right up, no diagnosis was done at all. This got me home and I'm thankful for this video and the others which I will link either in a edit or a new post should be next to this post. I will note the 4x4 high and 4x4 low lights were flashing occasionally but I made it home about 20 miles from my work. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-QYMkXKcdYP4.html ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-hhexuSRY534.html

Thank you so much for posting this Video, it saved me a lot of hassle and it turned out to be the problem.. Blessings in Jesus name to you and your family Mike.. :)

spot on vid! thank you so much for sharing this issue and superb repair vid on it!

Awesome! Yes thank God!

You are my hero! Thank you for sharing your knowledge, much appreciated.

Thank you for your video sir!!! But, I suck at soldering so I'm going to buy a refurbished fuse box.

Praise the Lord is right! Thanks for this very informative information.

It worked perfectly. Thank you.

Hey I have a question I’m about to tackle this but i want all the information and proper tools. What kind of solder wire should i get. And which size tip do i use for the desoldering tool?

Mike, VERY informative video. Thank you! I had to replace my whole fuse box because my case would not open without ruining the whole thing. (2001 ford expedition, with assumed burnt fuel pump relay. Stalling while driving, etc.) My question is: What other non serviceable relays are next to that fuel pump one? When I replaced my fuse box (used from ebay) well, there went my ac and heat. Nothing! No auto, no manual, no heat or air whatsoever. (I got a refund.) I'm only assuming that this new USED one has THAT internal relay burnt out! (My externals were fine.) Cannot find any diagrams for my year that tell me what else is inside there next to the fuel pump relay, but will continue to study. Also, I will be checking my fuel pump driver module (underneath by spare tire on cross member) to see if it is rusting and maybe causing the short in the first place. Have sealed all around my windshield to help with water leakage. 5.4 V8 Eddie Bauer, rear wheel drive. Thank you!!!

I'm going to have to try this I got the same issue with my expedition

Thanks a lot, ordering relay today. Hopefully I can solder, as well as you did??;o) Main thing don't overheat the motherboard, right?? I also called this guy, he told me, relays Ford uses, are under measured, made in China, so they go bad all the time. His are made in Korea...., hopefully better! Thanks again, youtheman =)

thanks guys

Thanks for posting this video.

great video Mike thanks why on earth they dont make the relay replaceable? same with the Chrysler TIPM

Why couldn't you just bypass the relay and wire in a aux relay for the fuel pump? Does the even monitor the output on this relay or? In other words, will it run and drive if you theoretically wired the fuel pump up to run and cranked the expedition?

I did the same but instead using same relay I used the fog lamp relay by laying new wires out to the fuse box and put removable connection then it works.

hi, mike I have ford expedition 2003 and I don't have the owners manual. and I have problem with no start but cranking. I am believe something wrong wit the fuel pump relay or fuel pump it self. this is the same problem that you have and have to replace the R303 relay? can you send me a copy of the fuse image and location of the fuse? thank you

Thanks so much... I am now convinced my fuel pump voltage drop surging causing rough idle is in the fuse box as well.

God bless you! thank you!

My dad just did this to my 2003 ford expedition. I was wondering after you fixed it did it Ever Stall again?

Michael, the only place I've found to buy the relay was through the speedometer repair guy on ebay. The phone number. 507-429-4489 I have no association with the seller but felt like it was worth mentioning that the part is available and it worked. I was told no relays were available and I had to buy the entire fuse panel for BIG MONEY$$$, WRONG, It was available several months ago, Good luck!

Hi, thank you so much for doing this video, thanks to your video im saving like you say almost 800 bucks..i have the same problem on my 2004 ford expedition and its the same part....thanks again

Hey I have a mini cooper I just install a pump in. It's still not starting but below the foot weld there is a relay clicking very loud. Do you think that might be my problem. Thanks

gonna show mechanic this my dad has already spent well over 2000 dollars on random things ..we kept replacing the relay switch and it was a temporary fix they kept burning out though

thank u!!!very helpful

Thankz for the video it really helps 👍

Mike, I am following your video to replace the R303 relay. Did you have any problems releasing the solder from the motherboard? I am and am looking for suggestions. My solder gun melts new solder but no on the motherboard

I did all of these steps, it cracks and still will not start fule pump and fule filter both have been changed as well, and it's not throwing any codes, it there anything else it could be or I can do?

this is very useful thank you

This will be my second time doing this to my 03' Eped. I was lucky enough to find one at a salvage yard for $100. Don't know if I will have the same luck this time around. Can you send the link of which ebay seller you got this relay from? I have an extra box already but I want to give this a good shot. Great video! Thank's for the information! It will help out alot!!!

great video THANK YOU. I'm fixing to do mine now.

tried this. now fuel pump doesn't shut off during initial priming and engine don't crank. Any ideas?

very helpful video. HOWEVER! on my 2003 excursion the relay is melted but the soldering points are on the "bottom " of the circuit board which is like a 3 layer cake with another circuit board at the other side. In other words, the fuse block is like a sandwich and the relay is on the outside of the bread with the prongs sticking in and through to the other side that is NOT easily pulled apart. I really hope I explained that well enough LOL

I couldn’t have done a better video myself and mast likely not as good. I love the idea of putting it back factory but I took one apart for someone but didn’t realize I could buy that relay. I put it back together and made and external relay using the battery stud on the central junction box to power pins 30 and 85 on the relay. Pin 87 to dark green and yellow wire in the connector above the center of the cover with blue around it and the blue and orange pcm relay control in the connector just below and to the left with white around it and it was a very fast repair and it shouldn’t happen again. The Ford dealer said the pump was bad but that wasn’t the problem.

Can you do this trick on the cruise control relay? R302 and if so do you know how?

Does the system throw an obd code indicating a faulty fuel pump relay ?

I have the same issue. Does anyone knows the best easiest way to check power to the fuel pump ? I was told the connector C270k out of the fuse box goes top the inertia cut off switch then to the fuel pump but I don't know which one it is.

Didn't bother ordering a new relay. I used a olde AC relay and soldered extension wires to it as it is a full size relay and would no way fit in side. Wasn't trying to save money. Just didn't want to wait for the correct size relay.

Good stuff nice video

PCM relay went bad (melted a contact) and I hear that that may be related to this repair in the near future. We shall see, saving just in case. Looks a lot simpler than fixing Xbox controllers

Did you use lead free solder or just regular solder on this fix???

Really it's help I fix ford expedition 2005 on your video earn 800 USD

Caj anyone please share the relay part link to Amazon or Ebay please

I did thanks

I disconnected my 4 pin permanently and ran an ignition source hot to the green/yellow. Problem solved. Unless you think you see any issue with that method. LOL

1999 Ford expedition

Went to the junk yard and got the hole box 28 dollars

How did that cable come off?