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Fuel Pump Fuse

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
If the inertia fuel cut off switch is tripped -press the button
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Wednesday, November 7th, 2018 AT 5:33 PM (Merged)
Tiny
RICK DEWS
  • MEMBER
  • 1 POST
  • 1989 LINCOLN TOWN CAR
Engine Mechanical problem
1989 Lincoln Town Car V8 Two Wheel Drive Automatic

where is the fuel pump on the 1989 lincoln town car
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Wednesday, November 7th, 2018 AT 5:33 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Its inside the fuel tank
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Wednesday, November 7th, 2018 AT 5:33 PM (Merged)
Tiny
TIGERLILY
  • MEMBER
  • 4 POSTS
  • 1990 LINCOLN TOWN CAR
  • V8
  • 2WD
  • AUTOMATIC
  • 145,000 MILES
Hello,
My fuel pump was not engaging during start up. 12v all the way to relay (30contact), 6.3v relay(87contact) and 5.2v at pump . I powered the pump directly from the battery and it works. The relay is also good, I took the same jumper I use from the pump to the battery and put it behind the relay at (87contact) and pump worked find. My question is, is it ok to bypass the fuel pump prime connector(use for factory scans) and the electronic engine control module? Both of these devices are after the relay on the same wire pk/bk leading to the pump.

Thanks
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Wednesday, November 7th, 2018 AT 5:33 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Try this and tell me if it works-At the fuel pump relay connector socket find the red and yellow wire make sure it has power jumper it to the pink and black
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Wednesday, November 7th, 2018 AT 5:33 PM (Merged)
Tiny
TIGERLILY
  • MEMBER
  • 4 POSTS
Hello,
I tried, still not getting 12v after the relay. The pk/bk wire has resistance somewhere in the wiring after the relay(difficult to find without pulling the dash and carpet) I ran a new wire from the pump to the relay at 87(connector), cleared my fuel lines of air and the car runs great. Just afraid this might cause a future problem, because I bypassed the fuel pump prime connector and electronic engine control module. These two devices come after the relay on the pk/bk wire, on the wiring diagram.

Thanks
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Wednesday, November 7th, 2018 AT 5:33 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Fuse T and fuse no. 13 powers the EEC power relay from there it goes to the computer KAPWR circuit

What color wire is at No. 87

Check power at the fuel pump cut off switch red wire

Unable to read EWD below give me your email addy and I'll send it thru there.


https://www.2carpros.com/forum/automotive_pictures/12900_fuel_pump_circuit_5.jpg

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Wednesday, November 7th, 2018 AT 5:33 PM (Merged)
Tiny
TIGERLILY
  • MEMBER
  • 4 POSTS
Good morning,
Pk/Bk is the color of the wire coming out of contact 87 on the fuel pump relay.

The pump cut off switch has power at red wire, 12.4v key on.

No, I can not see the diagram you sent. I have to have 10 posted in order to PM you.

I don't think the Pk/Bk wire powers the EEC, it may just sent a signal. Car still runs great and the fuel mileage has increased back to normal. (Normal fuel mileage per tank is around 400miles or more on the display, before I was just getting 310mile per tank.)

Thanks
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Wednesday, November 7th, 2018 AT 5:33 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
When you turn key On-Do you have power at the red and yellow wire on the fuel pump relay socket-If not you have an open with this wire between the relay and inertia fuel cut switch or the inertia switch itself-You said you have power on the red wire at the inertia switch if so and the fuel pump relay is good the fuel pump should come on.

The pink and black wire doesn't power the EEC relay. It is the wire that powers the fuel pump when fuel pump relay is energized
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Wednesday, November 7th, 2018 AT 5:33 PM (Merged)
Tiny
TIGERLILY
  • MEMBER
  • 4 POSTS
This forum has saved me a lot of time and money. If I would have started here, this would have been a $20 to $30 fix, instead of a $150.00:( Well lesson learned, now I know how to change a fuel pump:) Thanks!
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Wednesday, November 7th, 2018 AT 5:33 PM (Merged)
Tiny
MR.DANIELS
  • MEMBER
  • 1 POST
  • 1996 LINCOLN TOWN CAR
Engine Mechanical problem
1996 Lincoln Town Car V8 Automatic

do you have to drop tank or is there a way threw the trunk or back seat
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Monday, June 10th, 2019 AT 6:17 PM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Theres no access panel on this vehicle. You'll also need a fuel tank sender wrench to remove the pump.
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Monday, June 10th, 2019 AT 6:17 PM (Merged)
Tiny
MRFLETCHER
  • MEMBER
  • 1 POST
  • 2000 LINCOLN TOWN CAR
  • V8
  • 2WD
  • AUTOMATIC
  • 146,000 MILES
HOW DO I CHECK OUT MY FUEL PUMP AND IF IT IS BAD HOW TO REPLACE IT
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Monday, June 10th, 2019 AT 6:17 PM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Check fuel pressure
check fuses and relays
check in trunk switch (

Removal & Installation (Crown Victoria, Grand Marquis & Town Car)
Release fuel pressure.
Disconnect negative battery cable. Drain fuel from fuel tank. Open fuel filler door. Remove 3 fuel filler pipe bolts. Raise and support vehicle. Remove fuel tank filler pipe from fuel tank.
Disconnect fuel pump module connector located above No. 4 crossmember. Disconnect fuel lines from fuel pump module. Disconnect vapor tube from "T" fitting on right side of vehicle. Disconnect vapor tube from canister tube. Position a support under fuel tank. Remove fuel tank support strap nuts and move fuel tank support straps away from fuel tank. Carefully lower fuel tank. Remove and discard fuel tank mounting studs.
Disconnect pressure transducer connector on top rear corner of fuel tank. Remove any dirt from around fuel pump module flange area. Remove 6 fuel pump module retaining bolts. Remove fuel pump module. Remove and discard fuel pump module gasket. To install, reverse removal procedure. Tighten fuel pump module retaining bolts in a star sequence to 80-107 INCH lbs. (9-12 N.M).
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Monday, June 10th, 2019 AT 6:17 PM (Merged)
Tiny
PILOTJOE50
  • MEMBER
  • 2 POSTS
  • 1999 LINCOLN TOWN CAR
  • V8
  • 2WD
  • AUTOMATIC
  • 54,000 MILES
I have 12 volts at inertia Switch, but still not getting power to fuel pump. Do not get initial power at pump to pressurize system.
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Tuesday, June 25th, 2019 AT 6:50 PM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,452 POSTS
Maybe you need to reset inertia switch, or that switch is faulty? At the inertia switch, Dark green wire with yellow tracer goes hot/voltage when fuel pump relay is energized. The pink wire with blue tracer should be hot, also. That is voltage from inertia switch to pump. note diagram.

Here is a guide to help you see where you loose power and check the PCM power relay that is where the fuel pump gets it power from.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Check out the diagrams (Below)

Please let us know what you find. We are interested to see what it is.

Cheers, Ken
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Tuesday, June 25th, 2019 AT 6:50 PM (Merged)
Tiny
PILOTJOE50
  • MEMBER
  • 2 POSTS
With key on we have 12 volts at inertia switch for about 2 seconds, then voltage goes to 3.68 volts. During this check we still have no voltage at all at the pump itself, so I replaced the PCM relay and the fuel pump started working. The car runs great! Thanks :)
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Tuesday, June 25th, 2019 AT 6:50 PM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,452 POSTS
Use 2CarPros anytime, we are here to help. Please tell a friend.

Cheers, Ken
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Tuesday, June 25th, 2019 AT 6:50 PM (Merged)

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