Question about 1997 Mercury Villager

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Fuel Pump Problem - checked-up the relay and found good; fuse good but still no power going to the fuel pump.

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  • Mercury Master
  • 1,619 Answers

Use a multimeter to make sure wire to fuel pump hot, if it is its the fuel pump failure. Also check voltage at relay if it has power, also replace fuse just in case.

Posted on May 02, 2010

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Posted on Jan 02, 2017

alicantecoli
  • 22095 Answers

SOURCE: 1999 GMC Jimmy won't start.

firstly where is fuel pump relay as i have never seen a GMC jimmy sorry about that but have you ever seen a foden ?? well the first thing is to check the fuse,if fuse is ok which can be checked by looking at it as its transparent or a piece of wire with a light bulb .across the battery.to find the relay is easy if you dont know where it is,When this piece of americana decides to work just turn ignition on and listen for the click of relay ,then when it doesnt start listen for click again or rather an absence of a click,sounds more like a dodgy pump in the tank or the connections going to it.when it wont start try thumping the fuel tank with the ignition on and if it is a sticky pump you might hear it start then at least you will know where the fault is.Another fault that i have come across with relays is that where the relay is passing a heavy load then its possibe for the contacts to burn inside the relay.When this happens then if it is possible to seperate the relay cover and clean the contacts with a points file (remember them ) or a piece of fine emery paper if the cover breaks taking it apart then use a bit of black insulating tape to repair the cover.Thats assuming the pump is in the tank and not bolted to the chassis near the fuel tank but that design with external pump i havent seen on a europeon car for nearly 20yrs .

Posted on Nov 05, 2008

  • 141 Answers

SOURCE: fuel system problems

The Powertrain Control Module. I hope that this can help. Best wishes to you.

Posted on Jan 25, 2009

  • 112 Answers

SOURCE: 1992 bravada,cranks-no start, missing fuel pump

You can try to test the relay for function by swapping it with a known good working relay. If this does not work, you can put a jumper between the terminals that energize the pump (relay removed, ignition off). (On the Bosch Jetronic systems I used to work on, the pump would energize even with the ignition off). If there is still no sound, briefly turn the ignition on, and listen for the pump to energize. If you heard nothing, assume the pump is defective. I found most fuel pump problems and failures to occur in vehicles with 125,000 to 175,000 miles of use.

You may also try to check the Hall effect sensor ( a magnetic pulse detector that controls both spark and fuel flow) located within the distributor body (where the spark-plug wires attach to the distributor.

And finally, if that is good, check the ignition module within the distributor. It's a sealed transistorized circuit bolted to the inside of the distributor body with 5mm bolts.

Posted on Mar 26, 2009

  • 3 Answers

SOURCE: new fuel pump replaced on 2000 chevy s-10 blazer, no fuel

BAD FUEL PUMP


Posted on Apr 19, 2009

  • 1 Answer

SOURCE: Fuel pump problems

you have a shut off button in the trunk find it turn it off and turn it back on

Posted on Nov 25, 2009

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1988 chev silverado v6 no power going to the fuel pump. i checked for power where it plugs into the fuel pump on top of the tank and i got no power. what actions can i take to get power


check all ur fuses for continuity first, then u can also try to swap out ur fuel pump relay with another relay that looks jus like it, be sure to use a relay like for ur horn or ac relay something that wont affect necessary or direct engine circuits like for ex. an ecm fuse or bcm fuse. if fuses r good an swappin relays wont work, next is to trace bak from fuel pump ur wires an possibly keep back probing to see if u have a broken wire from relay box to pump . good luck hope this was helpful . in ur fusebox ur fuelpump fuse should b labeled or easily found in fuse box legend, most likely on bak of fusebox cover....

May 15, 2011 | 1988 Chevrolet Silverado 2500

2 Answers

Engine started and died. Will not restart. Seems to be electrical issue - what fuses or relays should be checked? Thanks.


Does it run if you put gas into the throttle body? If so, then it may be a fuel pump going bad, or the circuit to the fuel pump is dead.

Test for power at the fuel pump, then, when ignition key is on.

Test for pressure of fuel using a gauge at the fuel rail.
---
Basic Fuel System Diagnosis Two of the most import diagnostic checks, when dealing with a driveability problem involve the ignition and the fuel systems. The questions most technicians attempt to answer first are "is there spark?'' and "is there fuel?'' This often leads to solving most basic problems. For ignition system diagnostic testing, please refer to the information on engine electrical components and ignition systems found earlier in this manual. If the ignition system checks out (there is spark), then you must determine if the fuel system is operating properly (is there fuel?).
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chv_sub_25_undr-hd_fuse_blk_lbl.gif

The fuel pump relay under the hood in the fuse box is located in the middle.

Jul 17, 2010 | 1999 Chevrolet Silverado 1500

1 Answer

93 subaru leg wagion fuel pump problem


The fuel pump relay is located under the dash on the drivers side. The fuel pump relay is green and it should be next to a brown relay for the ignition.

May 22, 2010 | 1992 Subaru Legacy

3 Answers

No power to fuel pump car was running fine just quit repalced fuel pump no power to pump, car will start when spraying starting fluid in to intake, is there a fuse ? also replaced ECM, fuel filter,...


Check for 12 volts power at the fuel pump harness. If no power is going to the pump, check the fuel pump relay. Also, check the fuel pump inertia switch. Ford usually has it on either inside left or right rear trunk fenders.

Apr 09, 2010 | 1987 Ford Taurus

1 Answer

Engine turns over,but no fuel pressure at relief valve.


Check the fuse to the fuel pump.
The issue is repeated blowing of the fuel pump fuse. This occurs randomly and without warning, normally when medium to high throttle is applied. Generally the RPM's will fluctuate briefly before the fuse blows, which cuts off ALL power to the vehicle.
Especially dangerous on a highway! The first mechanic found a TSB related to the fuel pump resistor, and its default location in the wheel well can cause premature corrosion. Replaced it and relocated as per the TSB.
You can bypass the resistor, it's simple and free. You bend pin 85 on the fuel pump relay #15, in your engine bay fuse and relay box. Good luck and keep me posted, at worst ti's going to be a bad fuel pump and your going to have to drop the gas tank to replace the fuel pump. When you bend the #85 pin from the relay, will set the fuel pump on high mode bypassing the resistor.

Dec 22, 2009 | 2004 Pontiac Grand Prix

6 Answers

No power to fuel pump


when u checked this u do realize the fuel pump only has 12 volts for 1 second then the computer turns it off unless the engine is started? let me know.

Dec 03, 2009 | 1997 Dodge Ram 1500 Club Cab

1 Answer

2000 S10 4.3L Fuel pump stopped working out of the blue. We Put a new Fuel Pump in, new harnes to fuel pump, new fuel filter, new relay, new fuses in IGN C and ECM B fuses. Still the pump will not turn on....


Did you verify that the relay terminals have the appropriate signals to them? 

ECM fuse B (20-amp) should provide power at all times to the orange wire of the fuel pump relay. The relay coil receives ground via the black wire, and relay coil gets power from the dark green/white wire. When the relay is closed, you should have battery power on the gray wire. 

The relay trigger wire should have power from the dark green/white wire in terminal 1 of the Vehicle Control Module (VCM) connector for the first couple of seconds after they key is turned to run (to prime the system) and when the truck is running. Checking for all the appropriate signals at the relay is where I would start. That is after I checked for diagnostic codes.

Believe the fuel relay is the middle relay out of the three in the left rear of the glove box. Last thing is to hot wire the fuel pump if you can not get it scanned, see if the pump is bad unless your going to have a shop work on changing the fuel pump.
Good luck and hope this helps. keep me posted.

May 06, 2009 | 1999 GMC Safari

1 Answer

New relay an new fuel pump no fire goin to fuel pump


Check fuel pump fuse, remember fuse send power to relay and relay sends power to pump, Check power wires to pump and make sure FUEL PUMP FUSE IS GOOD if not replace and take care of this problem. Good luck and thanks for using FIX YA.

Mar 25, 2009 | 1990 Ford F150

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