Question about 1997 Ford Contour

1 Answer

Fuel Pump Runs Continuously - Not Relay

My Fuel Pump Runs Continuously.
The key will be out of the ignition, and you can hear the fuel pump running continuously.

It drains the battery quickly and makes it take longer to charge.

The relay has been replaced, thus the relay is not the problem.

Any idea on what it could be?

Posted by on

  • Eric Wichmann Nov 02, 2008

    Yeah, I kind of figured it was electrical.
    It runs when the relay is in, instantly.

    :(

    I just had an 800$ computer reprogramming done about 3 weeks ago too.
    Not digging the contour at the moment.


×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Novelist:

    An expert who has written 50 answers of more than 400 characters.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

  • Expert
  • 104 Answers

It could be some water in a wiring harness plug causing the relay to stay on constantly, or a short to earth in the switching side of the fuel pump circuit, but really it needs a auto electrician to have a look over it to find out why the relay is staying powered on all the time. When you plug in the relay can you feel it click on straight away? Or does the pump run regardless of whether the relay is plugged in or not? If the latter is true, check for damage to the wiring loom from the relay to the pump. Other than that, its probably auto sparky time.

Hope this helps,
Mark.

Posted on Nov 02, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

How can u tell if your fuel pump is burnt out


the best way is to have someone turn car to on to activate the fuel pump. get under car and place hand on fuel tank. if pump is working you will feel a vibration in tank. but you may have to recycle key a few times, for a fuel pump only works for a few seconds to get fuel pressure to engine. then when it starts, pump runs continuously. have a helper help you on this. if the pump does not work. check the fuse and relay for pump first. have a good day !!

Apr 18, 2011 | 2002 Chevrolet Impala

1 Answer

The fuel pump dont stop


Hi! The fuel pump is designed to run continuously as long as the ECM receives data that the engine is running. Excess fuel is passed back to the fuel tank.

The fuel pump is also designed to power up for 2-5 seconds when the ignition is turned to "RUN" to pressurize the fuel rail.

If your fuel pump runs continuously when the car is turned off, it may be a "stuck" fuel pump relay.

Oct 29, 2010 | 1994 Chevrolet Cavalier

1 Answer

Will not start when hot. starter makes no different types of noise.


hello. perhaps I can assist you.

Perform this test:

Fuel pump test:

1. Get yourself a helper.

2. remove the gas cap.

3. have one person listen in the gas tank at the gas cap opening.

4. have the other person turn the ignition switch to the ON position ONLY so as the dash lights come on. Do NOT attempt to start the engine.

5. As soon as the ignition key is turned to the ON position, The person at the gas tank should hear the fuel pump run for TWO SECONDS and then it should STOP.

6. Does it ?.


If you do NOT hear it run, in most cases the fault is the fuel pump relay or the fuel pump..


As soon as you turn ON the ignition switch to start the engine a 2 second ONLY battery voltage signal is sent from the computer to the fuel pump relay and from the relay back to the fuel pump in the fuel tank. This runs the fuel pump for ONLY 2 seconds of which pressurizes the fuel system in preparation to start the engine.

Once the engine starts, The computer BYPASSES the fuel pump relay and sends constant contionous battery voltage from the computer to the oil pressure switch of which is now CLOSED because the oil pressure is UP because the engine is running. Therefore the battery voltage flows thru the oil pressure switch back to the fuel pump to run the fuel pump constantly until you turn OFF the engine.

Oct 01, 2009 | 2003 Cadillac CTS

1 Answer

1992 Honda accord wont start and stay running.


MAKE YOU HEAR FUEL PUMP RUNNING WHEN TURN ON IGNITION KEY. IF NOT CHECK FUSE AND RELAY.IF YOU HEAR PUMP RUNNING. CHECK FUEL PRESSURE.IT SHOULD 36 TO 40 PSI.IF NOT REPLACE FUEL FILTER.IF FUEL PRESSURE IS STILL LOW FUEL PUMP IS BAD.

Aug 25, 2009 | 1992 Honda Accord

1 Answer

SENDING UNIT ???????


most of fuel pumps were in tank, wire corrodes is harness under right front seat floor pan to tank
if fuel pump buzz is heard and car runs and when it doesnt run you cant hear the fuel pump try
turn ignition off wait 10 seconds
turn ignition to on position to (prime or hear pump buzz)
no buzz fuel pump not working check fuel pump relay(swap with another) and try again?
you could use test light to pump wiring and make sure your getting power to pump on this prime test no power relay or wiring problem.
power at pump, but no buzz fuel pump faulty

Jul 01, 2009 | 1997 Isuzu Rodeo

1 Answer

No Power to Fuel pump


I would check the ground for the fuel pump relay that operates the switch side of the relay.
You should have 2 12v inputs to the relay. When the relay gets 12v input, it closes the relay switch on the heavy current side that sends 12v to the fuel pump.

A relay is needed because you don't want heavy current going through the switch.

Also, most cars only run the fuel pump for 2 seconds when the key is turned on because you don't want the fuel pump running without the car running. If you listen closely at the fuel tank, you should hear the pump run for 2 seconds when you turn the key to "ON"
When the key is turned to "START", the fuel pump should run continuously.
The engine computer tells the fuel pump to shut off if the engine rpms are zero.
So, I would check the switch side of the relay. Power amd ground.

Mar 01, 2009 | 1992 Jaguar XJ6

1 Answer

Main Fuel Pump


Fuses mean short somewhere.Fuse is always live it feeds relay but in tank pump [ fuse#4or#6 i forget anyway visa versa ] is not live until this.Relay clicks once when key tuned to on and once more when key turned to crank engine it is under dash by glove box and loud enough for someone with ear at this spot to hear.In tank pump should not be live until engine starts to crank.

Aug 03, 2008 | 1984 Volvo 240 Series

Not finding what you are looking for?
1997 Ford Contour Logo

197 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

61249 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Fordexpert

Level 3 Expert

5331 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...