I have a '96 F-250 PSD and today I noticed diesel dripping off the passenger side of the block. The leak is a pretty bad . I'm getting about 3 drips a second coming off the block by the starter. I have been told it could be the lift pump or the high pressure fuel pump. I am not sure where either of these pumps are. Also there is a small pool of diesel on top of the block. If someone could send me pictures of where these pumps are located on the engine I would greatly appreciate it.

 

It is most likely the fuel pump. It is located in the valley of the engine behind the fuel filter housing.

 

Is it very hard to replace

 

If your not a mechanical person and can do tougher repairs leave the fuel pump to a mechanic that has experience with PSDs. I had to have my pump changed and I didn't do it myself even thou I can do 90% of the repairs myself and repair big trucks but changing that pump wasn't something I wanted to attemp. These fuel pumps have a push rod that runs off the cam shaft anyhow when you pull the old pump out if you don't pull it out square and properly the push rod drops into the engine. Once its done that then you have to try get that push rod out worse case seanario is you have to pull the engine out pull the oil pan off.

If you buy a pump buy a factory Ford pump so you know its not going to crap out on you a year from now. Also make sure you have the proper banjo washers for the front of the pump where the banjo fitting is.

 

You guys are scaring him big time. If you are methodical, and have a lot of time you can do it yourself. I did mine, but had plenty of time to figure it out. One job that I'am more afraid to attempt is maintenance on 4wd front wheel bearings. Anyone done this lately? jcab

 

Doing wheel bearings is a easy job the hardest part is getting the manual hubs apart and back together. You need the proper sockets to get the axle nuts off but otherwise pretty simple.

My fear with the fuel pump was the push rod falling out into the engine. Also the banjo bolt is a biatch to deal with. I took the truck to a local mechanic he did it for me he owns PSDs and likes working on them.

I find working on automotive stuff is far more frustrating than the heavy equipement I was wrenching on.

 

This is a very good article by Sam Miller on fuel pump replacement. I'll have to post it in two parts because it is so long (and I dont know how to link to it lol)

FUEL PUMP REPLACEMENT by Sam Miller

I recommend disconnecting batteries. There is no way to work around the glow plug relay without touching it. Then set up a parts tray, run a good light, throw a pad over the radiator and go for it.

Also, if you have a HPX crossover hose installed, it is easier if you disconnect it from the passenger side oil rail and tie it out of the way. Remove "Y" pipe (compressor manifold) from turbo, taking care not to lose the rubber O-ring inside the fitting (Marmon clamp). If you loosen only the lower clamps on the two silicone hoses the whole assembly can be removed easily and set aside. Cover the openings with rags or plastic wrap and secure with rubber bands.

Draining the fuel filter/water separator canister. You will want to either place a container under the vehicle to catch the diesel (a hose pushed on to the drain tube sure prevents a mess), or pump the canister dry once you get the filter out, in which case you won’t slide the yellow lever to "DRAIN." This is a good occasion to inspect and clean the interior of the canister, so removal of the filter and heater is advised. (Remember, the plastic heater standpipe is LEFT HAND THREADS.) A 7/8" crow’s foot wrench works best, but I have loosened it with a regular open-end wrench. Pull off the heater wire connector with needle-nose pliers. Now you can clean the canister and check for cracks or leaks. You’ll be amazed at the crud in there.

Disconnecting hoses. There are two hoses connected to the top of the pump and one at the bottom. The two top hoses are protected by a removable clip-on heat shield (just yank it off). You can only get to the clamp on the pump side of that bottom hose. And finally, the water drain hose at the front passenger side of the filter housing.

Remove the two bolts attaching the fuel pressure regulator with 10mm and carefully pry it back from the filter housing, taking care not to lose the O-ring. Good time to clean the screen and examine condition of O-ring. There is also a short section of 5/16" hose that may need to be replaced.

Separate the wire harness connector on the passenger side of canister and remove positioning clamp with 8mm. It will NOT slide off the tongue of the clamp as you think it might, since the tongue is barbed. (Remind you of anyone?)

Disconnect wires connected to the canister, two on drivers side, one at bottom rear. (So now you want to know what they are? Aw geez, you’re one of THOSE GUYS: Oh, all right: on the driver’s side, the top connector on the side of the Water Filter/Water Separator Assembly is the fuel heater connection; the connector directly beneath it links to the Water Sensor; and the connector on the bottom rear of the Assembly is for the filter restriction sensor. I believe it is a vacuum switch. Note: In 1996 the fuel filter restriction sensor was moved to the fuel pressure regulator, driver’s side of filter housing. Happy now?)

To continue: Two bolts holding down the filter canister are 13mm. You can lift the whole filter assembly up and forward out of the way with the long blue hose still connected at the bottom

 

PART 2

Getting the pump out is not difficult, using a 1 1/4 inch box end wrench, heated and bent to clear the turbo pedestal, while removing the large banjo bolt. You just have to be patient and content with getting only small incremental turns on it. It takes a while. The two metal ring-gaskets will sometimes remain stuck to the banjo fitting. You can remove them once the pump is out of the way. You do not have to remove or loosen the fuel supply tubes connected to the banjo fitting.

Remove the two 10 mm bolts holding down the pump and carefully remove the pump from the crankcase bore. It will take some twisting and pulling. Be careful here so as not to lose the tappet into the cam crankcase. That would not be good. Examine your new pump to see how the tappet connects. Eventually you'll be able to lift the pump straight up and out of the engine.

Cover or stuff a rag into the pump hole and it's a good time to clean the entire valley. Kind of like being on a treasure hunt, you'll be amazed at what you find down there; valve caps, wire ends, wedding rings, cat hair, baseball gloves, wrenches... It's a lot of fun getting back all your tools.

Check out the exterior of the fuel filter canister. Clean the three wire terminals, check for leaks or cracks and clean everything so if a leak shows up later you'll know exactly where it originates.

Time to put things back together. Remove the two metal banjo gaskets if you haven't already. You might need a knife blade to get them loose. Be sure the interior of the banjo fitting is clean and free of debris.

Hoses: I got 3/8 inch 400 psi fuel hose from NAPA by the foot (by the inch, actually) and simply cut new hoses to match the old ones, three altogether on the pump and a 5/16 inch hose on the regulator. I installed them at this point, along with the clamps. I recommend tightening the clamps just enough so they are "pre-positioned." When the time comes to give them a final set it makes it easier not to have to chase them around with two hands. (One exception: the hose clamp on the bottom of the filter assembly must be tightened completely. You just can’t get to it once everything else is in place.)

If nothing fell into the hole or onto the cam then lower the new pump. I use a little anti-seize on the housing, thinking it might make removal next time a little easier. Grease should already be on the O ring, but if not, I'd grease it. Tighten the bolts carefully and evenly to secure the pump. Make sure the pump does not get in a bind. Just tighten evenly and it should go into the bore ok, regardless of how the cam eccentric is positioned.

The hardest part of the whole operation, for me at least, was getting the banjo bolt restarted. You will quickly come to understand why the shop manual calls for removal of the turbo pedestal for this operation. (Plus, more shop time equals more money. duh!) You will wish you had a Dremel tool and could cut away some of the "webbing" between the legs of the pedestal. It’s a bit of a struggle, figuring out how to position your hands and fingers for the most efficient way to start that large bolt.

Slide one new metal gasket onto the bolt, insert it into the banjo housing and have the second gasket ready to slide into the slot on the interior side of the fitting as you push the bolt in. It may take a couple of attempts to get that second gasket onto the bolt. Just be sure it doesn’t slide on through the fitting and disappear on top of the manifold. Now you just have to carefully turn the bolt with some pressure behind it to "catch" the threads. Once it's started, then it is just a matter of wrenching it in, one tooth at a time. Here's where patience comes in again. Eventually you'll get it in. Then snug it down, recheck the pump hold down bolts for tightness and you're through the worst of it. Time for a congratulatory coffee break. Sometimes even an adult beverage is deservedly appropriate here…

Adjust all the hoses and be sure the clamps are on and positioned for easy access. (Once again, the lower hose will have to be clamped securely to the filter canister at this point since you won’t be able to reach it once the assembly is bolted down.) Lower the filter assembly back onto its pedestal, connecting the lower hose to the fuel pump as you go. Check that the wiring looms and connectors on both sides are positioned correctly. Adjust all three short hoses correctly and tighten the clamps. Remember to "aim" the clamps for easy access later, just in case there is a leak and you need to get to them with a screwdriver or ¼ inch socket. Don’t forget to reconnect the drain hose also. And CLOSE THE YELLOW WATER DRAIN LEVER.

Install the two 13mm bolts securing the filter housing (I use just a touch of anti-seize) and tighten. Plug in the three wire connectors to the canister and join the loom connectors on the passenger side. Reinstall the 8mm hold-down bracket. (or probably like most of us do, just wire-tie the connector to the GP loom).

Re-attach the FPR, being careful to install the O-ring. Tighten the two 10mm bolts evenly so the O-ring sets properly.

Reconnect HPX hose, the "Y" pipe (don’t forget the O-ring) and whatever else you might have removed or disconnected. It is a good time to also re-dry the manifold. Looking for leaks will be a lot easier if everything underneath starts out dry. A long screwdriver and some paper towels work great. Just be sure to get them all back out before you finish.

Check everything twice. Pry back up whatever wires and brackets and connectors and hoses you mashed by laying on them. If it all looks good, reconnect the batteries and you are ready to start.

I leave the heat shield covering the two tops hoses off at this point, just so I can look for leaks once things are up and running. Don’t forget to eventually snap it back on, cause there is a lot of heat back there and the hoses will definitely last longer.



A couple of notes here: If you shimmed the FPR, I would remove the shim at this point and start over with a stock set-up. Once you are up and running again, you can work the pressure back up towards the 70’s, using whatever shims work best.

A NOTE OF CAUTION: The FPR housing is very fragile. It is extremely easy to crack the housing by over tightening the Schrader valve or any fittings you might insert to accommodate a PSI gauge. BE VERY LIGHT ON THE TOUCH WHEN TIGHTENING ANYTHING INTO THE SCHRADER VALVE OPENING.

If everything is working ok, it should fire up within a few cranks. Thereafter, it takes a while to purge the air, usually a couple dozen miles of driving before things begin to settle back in to near normal.

WARNING: You will want to take a good light and look for leaks after the engine is running. BE CAREFUL. The fan and belt can change your nickname to Three-Fingered Jack in a heartbeat.

With any luck at all, you are dry as a bone and ready to roll. Check it again after your test-run.

Good luck,

Sam Miller

sellwithsam@hotmail.com

P.S. Feel free to email me with any suggestions, corrections or improvements to these instructions. Hopefully it will help a few other guys save a bunch of money by doing it themselves.


Part Numbers:

PUMP: (sometimes referred to as a Lift Pump)

Ford number: F6TZ-9350-A

International number: 1824415C92

Master number for NAPA, Shucks, AutoZone, etc.: 61067

Banjo Gaskets (metal washers, two required):


Ford number: F4TZ-9A375-A

International number: 1820650C1

Fuel line O-ring: (rear of head, passenger side; F4TZ-9A387-A

just back of intake on valley side

of head, driver's side)

Hoses:

Ford and (Motorcraft) numbers:

Black hose, 1 required: F4TZ-9324-BA (KFL34)

Longer Blue hose, 1 required: F4TZ-9324-CA (KFL33)

Shorter Blue hoses, 2 required: F4TZ-9324-DA (KFL35)

Hose information for DIY:

Rated at 400 psi and ok for diesel fuel:

3/8" hoses: 2 required 2 " (fuel tank to pump &

low pressure feed from filter to pump)

1 required 2 7/8" (fuel pump outlet to filter)

5/16" hoses: 1 required 1 ¾" (FPR tubing)

1 required 5" (if replacing drain hose)

Fuel Filter Heater: Ford F5TZ-9J294-A

International 1825186C91

External Connector F4TZ-9C065-A

Fuel Filter Lid – OEM International: 1825190C91


Crankcase Breather O-Rings:


Ford F4TZ-6769-A (small, seals screw head, 1/pack)
Ford F4TZ-6769-C (large, seals breather adapter to
International 1824452C2 valve cover, 2/pack)
International 1820784C2



Water Sensor Probe Ford# F4TZ-9S281-A

Fuel Filter Restriction Sensor: 1994/95-bottom of filter assembly; 1996/97-on fuel regulator.

Ford # E8TZ-9S283-A

International # 1809435C1

Fuel Pressure Regulator California Kit part number F6TZ-9K061-AA

FPR Spring International # 1825854C1 (CA)

FPR Screen International # 1823658C91

FPR Screen Ford # "Orifice Vent Kit" F5TZ-9A214-A

FPR Kit Ford # F6TZ-9157-BA

O-ring dimensions: Width: 1/16" Diameter: 9/16"

Turbo Y-Pipe O-Ring: Ford: F4TZ-9E436-A International: 1818372C1

Turbo Pedestal O-Rings: (between pedestal & block; pedestal & turbo)
Ford: F4TZ-6N653-A & F4TZ-6N653-B

Turbo Exhaust Up-Pipes: Ford: F4TZ-6K854-A (Driver side)

Ford: F6TZ-6K854-A (Passenger side)

Turbo Exhaust Collector Donut: (Top of each manifold to turbo up-pipe)

Ford: F4TZ-6K854-C


Oil Gallery Plug: International: 1822607C91 (O-Ring not sold separately)

IPR O-Ring Kit:
Ford: F6TZ-9C977-AN
International: 1825806C92

 

Thanks for all the information

 

It's funny how certain jobs are difficult to different people. I guess all the parts involved in the front wheels are what gets me. How long did it take you to do the maintenance on front wheel bearings? And did you use a special manual? Jcab Oh, by the way I have automatic locking hubs on my 97 4wd.

 

Important things when changing ou the fuel pump:

1. after unbolting the pump, use a socket on the damper bolt and turn the engine over by hand until the fuel pump lifts up. (This raises the cam lobe for the pump tappet, pushing the pump up and blocking the hole so that the tappet can not be dropped into the engine).

2. after you set the new pump inplace with the tappet in the hole start the bolts but do not tighten them. Now turn the engine over by hand again, until the pump lowers.

3. with the fuel pump bolts loose, take the socket for the banjo bolt and place a nut or some kind of a spacer inside the socket so that only the banjo bolts head goes into the socket. Now put a short extention in the socket, with the banjo bolt in the socket (only head deep) place one of the washer on the bolt. Take a pair of long handle needle nose pliers, and pick up the other washer by the edge. reach through from the back of the turbo with the extention, socket and banjo bolt and push the bolt through the fuel line connector. As the bolt comes throught the connector place the washer that you have in the needle nose pliers over the bolt. with the pump loose you should be able to line up the bolt and pump with ALOT LESS EFFORT. Start the banjo bolt into the pump, but DO NO TIGHTEN.

4. tighten the fuel pump mounting bolts. Now tighten the banjo bolt. Finish installing everything else.

If you do the above, the job is not very hard. If you tighten down the pump before starting the banjo bolt it's a PITA.

Hope this helps.

 

Excellent thread , thanks for posting these great instructions.......... I will be doing the fuel pump r&r this week , its a bit intimadating to think about it moving all these parts and to keep in mind that the push rod if done incorrectly could fall down into the oil pan....... Thanks all I am sure this will help........


Jack

 

I have just changed my fuel pump. I am getting fuel to the filter but the truck is not starting. I think I am not getting enouph pressure past the filter. Any help will be appreciated

 

If your sure you are getting fuel to filter canister, I would check fuel lines leaving filter, or possibly the pump is not recieving fuel. Did you have any problems installing pump? Easiest thing sometimes is to tear it down, and recheck everything. jcab

 

I replaced my fuel pump and did have the pushrod fall out . I drained the oil and made sure it was it the oil pan and stuck a big magnet on the outside of the pan and that iis where it's going to stay till or if I ever pull the engine. It not going anywhere.

Dave