Go Back   Ford Mustang Forums > Mustang > 4.6 Mustang > 4.6L Tech

Welcome to our Mustang forums where Mustangers come together to hang out, discuss and enjoy their favorite Mustang hobby with fellow Mustang enthusiasts. We invite everyone to read, post, and enjoy our Mustang forum as well as the many other sections of our site.

You are currently viewing our forums as a guest. By joining our community you gain access to post topics, communicate with members, upload your photos and access many other special features. Registration is fast, simple and free so why wait, join our Mustang community today! If you have any problems with registration or your account login, please contact support.


Reply   Post New Thread
Unread 08-03-2009   #1 (permalink)
MrPetiee is offline Rookie


Joined: Jul 2009
Posts: 20 Threads: 5
 MrPetiee's Country Flag
Snoqualmie   Washington
MrPetiee is on a distinguished road
Default 1998 Mustang Fuel Pump Removal and Installation

I have been troubleshooting an overheating issue with my Mustang. I replaced the fuel pump this weekend and I thought I might post a how to for those who are considering doing this themselves.

I have no mechanical experience, just a Chilton book and what I have read on the Internet. I hope this encourages you to do it yourself as well.
  • First off get a good floor jack with at least 18” of travel. Sears has a good 3 ton pump, jacks and crawler that goes on sale for $99.00
    1998 Mustang Fuel Pump Removal and Installation-step1.jpg
  • Relieve the fuel pressure from the fuel system by disconnecting the inertia switch (left rear panel of the trunk), and attempt to start the car 2- 3 times for 3-4 seconds. This will relieve the pressure from the system
    1998 Mustang Fuel Pump Removal and Installation-step2.jpg
  • Disconnect the negative battery terminal.
  • Remove the fuel tank filler pipe lower bracket screw.
    1998 Mustang Fuel Pump Removal and Installation-step4.jpg
  • At this point the Chilton book will tell you to remove the seven screws pictured below to remove the fuel tank filler neck bracket bolts and the fuel tank filler pipe retainer. ( The reason for this post)
    1998 Mustang Fuel Pump Removal and Installation-step5a.jpg
    1998 Mustang Fuel Pump Removal and Installation-step5b.jpg
  • This is not enough in my opinion. Completely remove all items attaching the fuel neck filler pipe to the fuel tank. This will allow you to possible remove the filler pipe without ripping or tearing the grommet. I recommend like others on the Internet that you purchase one from you local ford dealer (1998 only F8ZZ-9072-AC ), just in case.
    1998 Mustang Fuel Pump Removal and Installation-step6a.jpg
    1998 Mustang Fuel Pump Removal and Installation-step6b.jpg
  • Now you should be able to slide the assembly from the fuel tank
  • Disconnect the fuel lines and vapor lines. You can use the cheap plastic kinds, you will need the 3/8 and 5/16. Once you figure out the first one, the rest are easy. The plastic sleeves just gently moves the metal prongs from the lip of the fuel filter and lines. Then you can pull them apart by hand.
    1998 Mustang Fuel Pump Removal and Installation-step8.jpg
  • Disconnect electrical connector from fuel pump harness.
    1998 Mustang Fuel Pump Removal and Installation-step9.jpg
  • It gets a little picture light from know on, since your confidence should be really high since you are getting close and removed all of the hard stuff
  • Support the fuel tank using the 3 ton jack and a piece of wood.
  • Disconnect the fuel tank straps and then slowly lower tank. You can always lower it a little to give you more room if you could not get them all is step 8
  • Here is the fuel tank pictured on my garage floor.
    1998 Mustang Fuel Pump Removal and Installation-step13.jpg
  • Clean up the top of the tank at this point. You don’t want dirt falling into your gas tank. Compressed air work great here (Thanks to the neighbor)
  • Remove the 6 bolts at the top of the sender plate.
  • Carefully pull the plate up partially. You may have to use a screwdriver to break the seal formed by the O-ring.
  • Reach into the fuel tank and squeeze the prominent plastic tabs on the fuel pump module housing to release it from the bottom of the fuel tank. The whole assembly will now come out of the tank.
  • Remove the o-ring.
MrPetiee is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Sponsored Links
Advertisement
 
Unread 08-03-2009   #2 (permalink)
MrPetiee is offline Rookie


Joined: Jul 2009
Posts: 20 Threads: 5
 MrPetiee's Country Flag
Snoqualmie   Washington
MrPetiee is on a distinguished road
Default 1998 Mustang Fuel Pump Removal and Installation cont.

  • I purchased the AIRTEX Part # E2366. This kit had everything you need to replace the pump plus detailed instructions on swapping it out. Warning, the part looks slightly different but fits perfectly and has the appropriate adaptor for the electric connecting. You do not have to cut off the existing plastic zap straps from the factory unit.
  • As every other book now tells you, reverse the order and get it all back together. The only other hint I have for you is to use a little new motor oil on the end of the fuel tank filler pipe to slip it thought the new grommet in the tank. It helped a lot.
  • Once you attach everything, it may take a couple of tries to prime the fuel system, but you should be good to go. Good luck!
MrPetiee is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 08-03-2009   #3 (permalink)
madatmk3 is offline Rookie

4.6L Member


Joined: Jan 2009
Posts: 14 Threads: 5
 madatmk3's Country Flag
Hesperia   California
madatmk3 is on a distinguished road
Default

Great little tutorial, I am getting ready to swap a walbro 255 in to my 96 GT and have been wondering if it has a pprv valve. Did you happen to notice if your 98 had a pprv setup as part of its fuel pump assembly? Thanks for the help.
madatmk3 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 08-05-2009   #4 (permalink)
MrPetiee is offline Rookie


Joined: Jul 2009
Posts: 20 Threads: 5
 MrPetiee's Country Flag
Snoqualmie   Washington
MrPetiee is on a distinguished road
Default

No my car did not have a pprv attached to the plastic lines inside the housing. That is, if it looked like the picture in this post. Mustang Cobra PPRV Removal Information - High Performance Stangs. If it was somehow incorporated into the fuel pump housing, I may have missed seeing it. HTH.
MrPetiee is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 08-05-2009   #5 (permalink)
knot2serious is offline Rookie

4.6L Member


Joined: Aug 2009
Posts: 17 Threads: 3
 knot2serious's Country Flag
Pensacola   Florida
knot2serious is on a distinguished road
Default

Good post. I am not a wrench turner myself, but yesterday I had replace the grommet for my fuel tank. Steps are pretty much what you described. I had a hobby shop with a lift I could use, so I unbolted my tank first and lowered it a little, then did all the disconnecting. It was a good learning experience for me.

Now however, I got a engine light on. I had it read and it came out to something like "low or no vent pressure". I cant remember the exact wording or the code itself, but the guy at the store told me it either could be gas cap not on tight enough (unless my cap is bad, thats not the case) or that the purge valve maybe bad?

Any thoughts out there?????
knot2serious is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 08-05-2009   #6 (permalink)
MrPetiee is offline Rookie


Joined: Jul 2009
Posts: 20 Threads: 5
 MrPetiee's Country Flag
Snoqualmie   Washington
MrPetiee is on a distinguished road
Default

Some stuff I read said you may have to reset the codes after you do the work. Have you reset them and it reappeared? If you did make sure the clamps on the pipes are tight between the fuel pipe assembly and the tank (3 of them). Especially the evaporative line at the top passenger side of the tank.
MrPetiee is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 11-15-2010   #7 (permalink)
gregt44 is offline Rookie


Joined: Nov 2010
Posts: 5 Threads: 1
 gregt44's Country Flag
Memphis   Tennessee
gregt44 is on a distinguished road
Default fuel pump

I replaced my fuel pump today. I got an airtex E2203M. Im curious as to whether your pump was a modular unit or on a hangar since it seems ford changed the fuel system in 1998. Im up loading a picture of my pump if you wouldnt mind letting me know if thats what your assembly looked like.
Attached Thumbnails
1998 Mustang Fuel Pump Removal and Installation-airtex-e2203m.jpg  
gregt44 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 11-16-2010   #8 (permalink)
MrPetiee is offline Rookie


Joined: Jul 2009
Posts: 20 Threads: 5
 MrPetiee's Country Flag
Snoqualmie   Washington
MrPetiee is on a distinguished road
Default

That part looks like the whole assembly inside the fuel tank when I took mine apart.

When I fixed mine I just replaced the actual fuel pump that resides inside that housing in the tank. You just pop in the new part and wire it in.

Good Luck! Let me know if I can be more help.
MrPetiee is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 11-17-2010   #9 (permalink)
gregt44 is offline Rookie


Joined: Nov 2010
Posts: 5 Threads: 1
 gregt44's Country Flag
Memphis   Tennessee
gregt44 is on a distinguished road
Default

That makes sense to me now. thanks. I really wanted to upgrade to a 190 LPH pump, but since its a daily driver I needed to get it done so I ended up replacing the whole module. I'll probably end up upgrading it later. I kept the factory module so I can basically put a new pump in it and have it ready to go.

MMR is calling the 98 a return system with a returnless pump. I know that Ford went to a variable pump in 1999, but i'm not seeing anything that resembles a fuel pressure transducer on my 1998. It has a fuel pressure regulator on the back passenger side of the rail which seems to be mounted on its side facing aft.

The big question being do we use the 1999 pumps or the 1997 pumps on our 1998 mustangs,since Im having trouble finding a "1998" performance pump. Unless someone happens to know a 190LPH 1998 pump thats out there
gregt44 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Sponsored Links
Advertisement
 
Reply   Post New Thread



Thread Tools



Mustang Photos
Mustang Links    Top Sites    RSS    Link To Us    Add to Favorites    Archive    Terms of Use    Site Rules    Privacy    Contact    Sponsors    Advertise   
AllFordMustangs is not affiliated with or endorsed by Ford Motor Company. ©Copyright 2002-2011 All Auto Enthusiasts Network

Search Engine Friendly URLs by vBSEO 3.5.2

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164