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Thread: Dead fuel pump...?

  1. #1
    Join Date
    Mar 2004
    Location
    Baltimore, Md.
    Age
    64
    Posts
    11,665

    Dead fuel pump...?

    OK....
    So I pulled the split block 5.0 DOHC last Spring.
    Had my OEM short block rebuilt and got everything back in the Marauder.
    Now, when I 'Key ON' or crank....there is no fuel pressure.

    - Cannot hear the fuel pump run to build pressure.
    - Checked Fuel pump relay and fuse....Both good.
    - Trunk mounted inertia switch is not tripped.

    Can a fuel pump just die from sitting for a year+?? (Marauder was stored indoors/heated garage)

    Any other things I should check?....

    When I get it running again....who wants to buy a super clean 18,000 mile Marauder??
    (Fusion Sport is quicker, smoother and knocks down 25+ MPG all day long.)
    Last edited by Joe Walsh; 11-08-2017 at 07:07 PM.
    2020 Ford Ranger STX DFI Turbo 2.3L 10 speed Auto
    2017 Ford Fusion Sport DFI Twin Turbo 2.7L V6 6 speed Auto (14.000 ET bone stock in 82 degree heat)
    1985 Mustang GT 5.0 Hatchback 4bbl 5 speed manual (525 HP 363 Dart block/AFR heads with Magnum 6 speed in the works)
    1984 Mustang GT 2.3 Turbo Convertible FI. 5 speed manual
    1966 427 Cobra (ERA) 468 all Aluminum FE 2x4bbl 5 speed manual

    SOLD : 2003 Mercury Marauder FI. 4 speed Auto
    w/Crower Cams & Springs, +1mm SS valves, mild port job on the cylinder heads.
    Extrude honed intake w/PHP spacer.
    Kooks Headers w/2.5" High Flow Cats & X-Pipe, Magnaflow mufflers, OEM tailpipes w/Megs Tips
    B&M Trans cooler w/fan, Level 10 Shift Kit, Art Carr Hughes Deep Sump Trans Pan,
    SVO Rearend Girdle, Redline Gear lube; OEM 3.55s
    'Real Gauges' + matching Trans Temp, Oil Temp, Water Temp, Fuel Pressure, Vacuum/Boost Gauge
    Built: 10/15/02 Bought: 12/16/02 Sold: 10/15/18

  2. #2
    Join Date
    Jan 2003
    Location
    Near Knoxville TN
    Age
    67
    Posts
    10,717
    It's possible but not likely that the pump quit. Something electrical is my guess. Not much help but just hang in there.
    Thanks to Darrin @ BC Automotive:
    $1800 and it was worse than when he started!

    Brian (FordNut) FPG # 1458 of 7838
    03 MM 300A (Lotsa mods, 130k mi) was 303rwhp/318rwtq N/A
    then 476/410 D1SC ProCharged on stock block
    then 660/555 D1SC PC on 5.3 wet sleeved Teksid alum big bore stroker
    then 365/369 N/A on 5.3 wet sleeved Teksid alum big bore stroker
    Now 751/617 3.4L Whipple on 5.3 Boss5.0 iron big bore stroker

    03 MM 300B Silver (Mostly stock, originally wife's car, 370k mi) FPG # 7053 of 7838 or 49 of 417 SB
    03 MM 300B Silver, Stock, wife's next one, 136k mi FPG # 7134 of 7838 or 89 of 417 SB
    04 MM Silver, Stock, on standby 85k mi, FPG # 1212 of 3214 or 432 of 997 SB
    01 F150 longbed
    01 F150 shortbed
    00 F150 4x4 stepside
    01 F150 4x4 7700
    68 Stang FB (70 351C 4V, 4 wheel discs, project car)

    Mods listed here (some items not current): FordNut's Mods

  3. #3
    Join Date
    Jul 2010
    Location
    Guntersville Al.
    Age
    59
    Posts
    1,291
    This is possible. My sons will buy cars they find sitting in back yards, and fields, that have been sitting anywhere from 6 months to several years. One of the first things they check is the fuel pump. More often then you think the pump will be bad. Make sure you have power to the pump. If you do and it's not on, then it's time for a pump.

    It was an honor to have
    my ASS kicked by you!
    Rest In Peace!
    Paul T. Casey

  4. #4
    Join Date
    Nov 2008
    Location
    North of the Border
    Age
    46
    Posts
    3,195
    Don't forget the FPDM.
    Don't bring skittles to a gunfight.

  5. #5
    Join Date
    Mar 2004
    Location
    Baltimore, Md.
    Age
    64
    Posts
    11,665
    And the answer is.....

    Fuel pump was 'stuck'!

    - Disconnected the fuel pump wiring harness right above the rear axle.
    - Applied 12VDC directly to pump from a spare car battery.
    - Pump would make a very slight click then nothing.
    - Reversed the 12VDC leads to try and spin the pump backwards....
    - Fuel pump runs!
    - Put the leads back to the pump correctly....
    - Fuel pump runs!
    - Reconnect fuel pump wiring harness and turn ignition key on...
    - Fuel pump runs and pumps gas like it should.



    Saved myself a lot of swearing and cut knuckles trying to get the fuel pump hat out of the tank.
    Now I've got to siphon the stale gas out of the tank and put some fresh 93 octane in.
    Maybe she'll fire up for the first time in 2+ years!
    Last edited by Joe Walsh; 11-09-2017 at 05:18 PM.
    2020 Ford Ranger STX DFI Turbo 2.3L 10 speed Auto
    2017 Ford Fusion Sport DFI Twin Turbo 2.7L V6 6 speed Auto (14.000 ET bone stock in 82 degree heat)
    1985 Mustang GT 5.0 Hatchback 4bbl 5 speed manual (525 HP 363 Dart block/AFR heads with Magnum 6 speed in the works)
    1984 Mustang GT 2.3 Turbo Convertible FI. 5 speed manual
    1966 427 Cobra (ERA) 468 all Aluminum FE 2x4bbl 5 speed manual

    SOLD : 2003 Mercury Marauder FI. 4 speed Auto
    w/Crower Cams & Springs, +1mm SS valves, mild port job on the cylinder heads.
    Extrude honed intake w/PHP spacer.
    Kooks Headers w/2.5" High Flow Cats & X-Pipe, Magnaflow mufflers, OEM tailpipes w/Megs Tips
    B&M Trans cooler w/fan, Level 10 Shift Kit, Art Carr Hughes Deep Sump Trans Pan,
    SVO Rearend Girdle, Redline Gear lube; OEM 3.55s
    'Real Gauges' + matching Trans Temp, Oil Temp, Water Temp, Fuel Pressure, Vacuum/Boost Gauge
    Built: 10/15/02 Bought: 12/16/02 Sold: 10/15/18

  6. #6
    Join Date
    May 2009
    Location
    Moreau Island
    Posts
    12,207
    How much gas was in the tank? Had a similar issue with the SB a few years ago. I had about a 1/4 of a tank and the car sat for a few months. When I tried to start it, nothing and it had worked just fine when it was parked. Bought a fuel pump, but on a lark I poured 5 gallons of 93 into the tank. Car started right up. I bring the pump with me on long trips just in case, but it's been a few years with no issues. Long of the short, if you are storing the car for more than a week or two fill the gas tank.

  7. #7
    Join Date
    Mar 2004
    Location
    Baltimore, Md.
    Age
    64
    Posts
    11,665
    Yep....was about 1/4 -> 1/3 tank of gas.
    Only problem was getting it to a gas station once the engine expired....
    2020 Ford Ranger STX DFI Turbo 2.3L 10 speed Auto
    2017 Ford Fusion Sport DFI Twin Turbo 2.7L V6 6 speed Auto (14.000 ET bone stock in 82 degree heat)
    1985 Mustang GT 5.0 Hatchback 4bbl 5 speed manual (525 HP 363 Dart block/AFR heads with Magnum 6 speed in the works)
    1984 Mustang GT 2.3 Turbo Convertible FI. 5 speed manual
    1966 427 Cobra (ERA) 468 all Aluminum FE 2x4bbl 5 speed manual

    SOLD : 2003 Mercury Marauder FI. 4 speed Auto
    w/Crower Cams & Springs, +1mm SS valves, mild port job on the cylinder heads.
    Extrude honed intake w/PHP spacer.
    Kooks Headers w/2.5" High Flow Cats & X-Pipe, Magnaflow mufflers, OEM tailpipes w/Megs Tips
    B&M Trans cooler w/fan, Level 10 Shift Kit, Art Carr Hughes Deep Sump Trans Pan,
    SVO Rearend Girdle, Redline Gear lube; OEM 3.55s
    'Real Gauges' + matching Trans Temp, Oil Temp, Water Temp, Fuel Pressure, Vacuum/Boost Gauge
    Built: 10/15/02 Bought: 12/16/02 Sold: 10/15/18

  8. #8
    Join Date
    Oct 2003
    Location
    Beaufort, SC
    Posts
    7,719
    Disconnect Fuel Filter and run a hose from tank connection to a container.....turn ignition on and let the lazy Fuel Pump work for ya Joe!!
    No Marauder

  9. #9
    Join Date
    Mar 2004
    Location
    Baltimore, Md.
    Age
    64
    Posts
    11,665
    Quote Originally Posted by Marauderjack View Post
    Disconnect Fuel Filter and run a hose from tank connection to a container.....turn ignition on and let the lazy Fuel Pump work for ya Joe!!
    Great minds think alike!

    I tried that but the fuel pump will only run for @ 5 seconds before it shuts off. Then you have to 'key Off - key On' cycle it each time.
    Last edited by Joe Walsh; 11-20-2017 at 06:31 PM.
    2020 Ford Ranger STX DFI Turbo 2.3L 10 speed Auto
    2017 Ford Fusion Sport DFI Twin Turbo 2.7L V6 6 speed Auto (14.000 ET bone stock in 82 degree heat)
    1985 Mustang GT 5.0 Hatchback 4bbl 5 speed manual (525 HP 363 Dart block/AFR heads with Magnum 6 speed in the works)
    1984 Mustang GT 2.3 Turbo Convertible FI. 5 speed manual
    1966 427 Cobra (ERA) 468 all Aluminum FE 2x4bbl 5 speed manual

    SOLD : 2003 Mercury Marauder FI. 4 speed Auto
    w/Crower Cams & Springs, +1mm SS valves, mild port job on the cylinder heads.
    Extrude honed intake w/PHP spacer.
    Kooks Headers w/2.5" High Flow Cats & X-Pipe, Magnaflow mufflers, OEM tailpipes w/Megs Tips
    B&M Trans cooler w/fan, Level 10 Shift Kit, Art Carr Hughes Deep Sump Trans Pan,
    SVO Rearend Girdle, Redline Gear lube; OEM 3.55s
    'Real Gauges' + matching Trans Temp, Oil Temp, Water Temp, Fuel Pressure, Vacuum/Boost Gauge
    Built: 10/15/02 Bought: 12/16/02 Sold: 10/15/18

  10. #10
    Join Date
    Oct 2003
    Location
    Beaufort, SC
    Posts
    7,719
    FPDM must think the fuel line is broken and shuts it down....wonder if you can bypass it somehow??

    How's the old gas smell......bad or OK??
    No Marauder

  11. #11
    Join Date
    Aug 2007
    Location
    Medina, Ohio
    Age
    70
    Posts
    111

    pump

    Same exact scenario here. We pulled the pump, and the sock was deteriorated. The pump was bad. Siphoned the turpentine smelling gas, put in new gas, and fired right off. That was two weeks ago. Running great now. We always put in fuel stabilizer, but it is not good forever. My original 96 Impala SS was filled with Amoco premium in 97 when I parked it. Amoco's premium used to be known by nickname of "white gas". Fuel still smells new and runs great. All the additives today have hurt some of the fuels.

  12. #12
    Join Date
    Mar 2004
    Location
    Baltimore, Md.
    Age
    64
    Posts
    11,665
    Quote Originally Posted by Marauderjack View Post
    FPDM must think the fuel line is broken and shuts it down....wonder if you can bypass it somehow??

    How's the old gas smell......bad or OK??
    Actually the 'old' gas didn't smell bad...nor like paint varnish.
    Got about 6+ gallons out of the tank and poured it into my 3.sl0w Ranger.
    That cast iron boat anchor-of-an-engine will burn anything!

    Got 7 gallons of fresh 93 octane and I'll disconnect the fuel feed at the intake manifold....
    then purge any leftover/old gas, reconnect the fuel line fitting and fire her up this weekend.
    2020 Ford Ranger STX DFI Turbo 2.3L 10 speed Auto
    2017 Ford Fusion Sport DFI Twin Turbo 2.7L V6 6 speed Auto (14.000 ET bone stock in 82 degree heat)
    1985 Mustang GT 5.0 Hatchback 4bbl 5 speed manual (525 HP 363 Dart block/AFR heads with Magnum 6 speed in the works)
    1984 Mustang GT 2.3 Turbo Convertible FI. 5 speed manual
    1966 427 Cobra (ERA) 468 all Aluminum FE 2x4bbl 5 speed manual

    SOLD : 2003 Mercury Marauder FI. 4 speed Auto
    w/Crower Cams & Springs, +1mm SS valves, mild port job on the cylinder heads.
    Extrude honed intake w/PHP spacer.
    Kooks Headers w/2.5" High Flow Cats & X-Pipe, Magnaflow mufflers, OEM tailpipes w/Megs Tips
    B&M Trans cooler w/fan, Level 10 Shift Kit, Art Carr Hughes Deep Sump Trans Pan,
    SVO Rearend Girdle, Redline Gear lube; OEM 3.55s
    'Real Gauges' + matching Trans Temp, Oil Temp, Water Temp, Fuel Pressure, Vacuum/Boost Gauge
    Built: 10/15/02 Bought: 12/16/02 Sold: 10/15/18

  13. #13
    Join Date
    Feb 2012
    Location
    harrison twp,mi
    Posts
    8,700
    I didn't have a way of pulling the line off so I just unscrewed the shrader valve and used a hose and a hose clamp. Good luck I hope it goes smooth.
    Those were the days.........

    DANG THEY'RE CUTE!!!!!!
    Smile and Nod
    I love THIS bar

  14. #14
    Join Date
    Oct 2003
    Location
    Beaufort, SC
    Posts
    7,719
    Sounds like you'll be OK Joe!!

    Good Luck!!
    No Marauder

  15. #15
    Join Date
    Mar 2004
    Location
    Baltimore, Md.
    Age
    64
    Posts
    11,665
    " IT's ALIVE!!! "

    Today, I fired up the Marauder with my freshly rebuilt OEM 4.6L short block.
    Warmed her up, broke her in and everything was working properly.
    She's still got the ported heads, extrude honed intake and Crower cams, plus the headers/exhaust..... and she runs like a scalded cat!

    I haven't driven the car in 3 years....but Ohhhh what a joy!

    Sounds awesome....haven't heard a V8 howl like that in wayyy too long.


    Maybe I won't sell her after all.
    2020 Ford Ranger STX DFI Turbo 2.3L 10 speed Auto
    2017 Ford Fusion Sport DFI Twin Turbo 2.7L V6 6 speed Auto (14.000 ET bone stock in 82 degree heat)
    1985 Mustang GT 5.0 Hatchback 4bbl 5 speed manual (525 HP 363 Dart block/AFR heads with Magnum 6 speed in the works)
    1984 Mustang GT 2.3 Turbo Convertible FI. 5 speed manual
    1966 427 Cobra (ERA) 468 all Aluminum FE 2x4bbl 5 speed manual

    SOLD : 2003 Mercury Marauder FI. 4 speed Auto
    w/Crower Cams & Springs, +1mm SS valves, mild port job on the cylinder heads.
    Extrude honed intake w/PHP spacer.
    Kooks Headers w/2.5" High Flow Cats & X-Pipe, Magnaflow mufflers, OEM tailpipes w/Megs Tips
    B&M Trans cooler w/fan, Level 10 Shift Kit, Art Carr Hughes Deep Sump Trans Pan,
    SVO Rearend Girdle, Redline Gear lube; OEM 3.55s
    'Real Gauges' + matching Trans Temp, Oil Temp, Water Temp, Fuel Pressure, Vacuum/Boost Gauge
    Built: 10/15/02 Bought: 12/16/02 Sold: 10/15/18

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