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Symptoms of a bad fuel pump

Car starts sometimes and cannot start the next day or driving short distances does not start

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Usually a fuel pump does not "come and go". It either works or it doesn't. It can be weak before it quits, which would allow the engine to start but not have much power.
A mechanic would check base fuel pressure with a gauge before and after the attempt to start. The problem could be a relay or something else.

Posted on Apr 30, 2013

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Posted on Jan 02, 2017

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  • 39 Answers

SOURCE: fuel pump problem 96 taurus

install a fuel pressure gauge to the fuel rail to see if you are getting any fuel pressure when the car wont start.if there is no pressure it is a pump

Posted on Sep 21, 2008

  • 1 Answer

SOURCE: truck starts, dies. truck runs good some days,bad the next

I had the same problem with My 1990 F150 300 6cylinder 4x4.....I cahnged all the same things you did, finally I sprayed a can of Gumout through the throttle body and it worked and ran great. Now I add fuel injector cleaner to the gas and a regular clean with the gumout and the problem has'nt come back. Good Luck to you and hope it works!

Posted on Oct 06, 2008

goalie39
  • 469 Answers

SOURCE: 2001 F250 power stroke 7.3 liter turns over but won't start

did it start up easily right away?
Has it happened more than once?

Posted on Apr 15, 2009

mcgyver468
  • 710 Answers

SOURCE: 99 chevy blazer start truck fine then next time go

Fuel pump relay sound bad. Under the hood in the fuse box is the location of the relay. Look under the cover for the diagram to locate it faster. Hope this helps. Please keep me posted. Good luck

Posted on Apr 28, 2009

mecanica03
  • 911 Answers

SOURCE: where is fuel pump relay on 1995 toyota camry

generally toyota, supply `power direct from ecu

Posted on Apr 29, 2009

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Problems starting as well as cutting oit when at higher speeds loss of power


what vehicle are you talking about. Is there a clogged fuel filter?
Is the air filter clogged? is the fuel pump going. These are usually the prime suspects in what your describing.. Take out the air filter and drive the car a short distance on a DRY day. if it works buy a new filter. next try changing the fuel filters. its cheap and pretty easy on most cars and trucks. can alway youtube.com it for a video on how to do it yourself. then the worse case is the fuel pump going. Prices range from $100 to $350 and up.

Apr 21, 2014 | Cars & Trucks

1 Answer

2005 Stratus Sedan dies while driving


Most likely the fuel pump. Pumps have many symptoms and this is one. Once the fuel gets warmed up the pump will slow down or just stop. After the fuel cools down, the pump returns to working. Next time it happens use a soft hammer or some like it to hit the bottom of the tank, approximately where the fuel pump is located. This jars the pump and usually it will start back up.. Change the pump.

Jul 12, 2013 | 2005 Dodge Stratus Sedan

1 Answer

Won't start


It is just imposs to diagnose this without wring diagrams, you will need them and we do not have them.

Jun 15, 2012 | 2002 Oldsmobile Silhouette

1 Answer

WILL START DRIVE A FEW BLOCKS , THEN SIT 5 MIN GO TO START AND WILL ONLY CRANK CHECK FUEL FUSE SOMETIMES BLOWN OTHER TIMES NOT HIT TANK THEN MAY START , MIGHT TURN OFF AND THEN MAY BLOW FUSE, REPLACE FUSE...


for 1 fuse blown evry so often then you must have a short somewhere, the fact that it will crank and not start is most likely ur fuel pump , had the same issue with getting fuel to start or keep car running, possible that short could be by the fuel pump, the fuel pump is located under the rear seat and if im not mistaken it is on the drivers side rear

Feb 15, 2011 | 2002 Lincoln LS

1 Answer

2003 kia sportage starting problems


It could be a problem with the fuel pump or igntion module/ coil pack. The next time it stops, fuel pressure needs to be checked and have the ignition coil pack and module tested at a local parts store.

Apr 23, 2010 | 2002 Kia Sportage

1 Answer

Engine problens


Have you had the fuel tank inspected/cleaned? This may have been done whent he fuel pump was being replaced and there was access to your tank interior.

If you have crud in your tank, especially if it's leaves, paper or flakes of old coating/paint, then it can float around and slosh in your tank and at the most inopportune time get sucked over the fuel intake for the pump and choke off or restrict supply. This can give the symptoms you describe, where there are spells of repeated weird symptoms, and then it changes symptoms or appears to dissappear for a while when the crud floats away from the pump. As soon as the fluid motion of the tank brings it back over to the fuel intake, the restriction starts again. Then when you stop the car, and the suction stops and lets it drift off and fall to the bottom of the tank, it seems to be fine again until fuel flow again sucks the offending item back against the intake. I've seen this on three occasions in the past with the same symptoms as you describe and it also foxxed repair shops to no end. On one occasiosn a guy's solution to a rusty tank was to use a tank coating kit. However, if you don't prep the tank and follow the instructions precisely (which he did not) the coating doesn't bond and can pull away from the tank walls and break up into small sheets that can cause the issues I describe above.

Hope this helps

Dec 29, 2008 | 1992 Dodge Dakota

1 Answer

Blowing ECM-B fuses


The first thing you should do is to locate the oil pressure switch/sending unit.


This switch serves two functions.

1) provide oil pressure reading

2) disable the fuel pump relay in event of oil pressure loss.

===

When this switch is failing to provide the correct pressure to the ECU. The wiring harness can overheat and eventually create a short.

ECM B blow is because the harness is grounding/shorting.

===

DO NOT drive the truck until you change the oil pressure switch.

After you change the switch,you should spend sometime to inspect the wiring between the fuel pump relay,ECU and fuel pump.


Please post up day on the comment window/page.

I will follow up on it later.


Good luck.

Aug 24, 2008 | 2000 GMC Savana

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