Question about 1999 Kia Sephia

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Car does not have power going to fuel pump in the run position.all fuses good.car will run on either

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Check both fuses? one in car one under hood called a fuel relay. good luck.

Posted on Mar 27, 2011

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Why would the fuse to fuel pump burn when i try to start my 98 ford ranger


Short to ground, or short to the positive side of the starter solenoid between solenoid and Starter positive lead. "electricity follows the path of least resistance". See if you an run a tempory positive from battery to the fuel pump (after disconecting fuel pump and it will run. Or if you have an ohm meter check the resistance between ground and it's positive terminal disconnected from it's power lead. If it shows no resistance there is an internal short to grown and thus blowing fuse. If shows some resistance, it should be good. Measure resistance of the positive lead to the fuel pump still disconnected and ground. If zero, that lead is pinched and grounded to the frame thus blowing fuse. This lead connects to what is known as fuel pump relay. That may be the problem too. Good luck.

Mar 14, 2015 | 1998 Ford Ranger

Tip

Car won't start? First thing would be to check all your fuses. Most fuse boxes...


Car won't start?
First thing would be to check all your fuses. Most fuse boxes are located under the driver side dash panel. Some cars do have an extra set of fuses on passenger side kick panel (foot area on door side)

If all fuses are good, then next thing would be to test your relays with an ohmmeter.

If all your your relays and fuses are good, you will want to check for fuel and spark. A car needs air, fuel and spark to run.

To check for spark, you can purchase and use a spark tester.
If you cannot obtain a spark tester, then the next best thing would be an ohmmeter. You can test the power coming from your coil packs or distributor depending on what you have. On distributorless vehicles (one with coil packs) the coil pack are attached to an ignition module. This module is powered by the Crankshaft Position Sensor. This sensor can be tested with an ohmmeter. The Crankshaft Position Sensor is the first thing to be tested if you have no spark in any cylinder. If you have spark in some cylinders but not all, then check the coil pack (1 pack per 2 cylinders).

If you have a distributor, test the coil that provides the spark.

If you have plenty of good strong spark, then the next step would be to check for fuel.
Fuel system consists of Fuel Tank, Fuel Pump, Fuel pump Relay, Fuel Filter, Fuel Pressure Regulator and finally carberator or injectors.

Fuel injected systems have a fuel rail. On the fuel rail is a test port for fuel pressure. If you have a fuel pressure tester you can test how much fuel pressure you have. Or you can place a rag over the valve and press it in to see if there is pressure. If not pressure, check that pump is running. You should hear it run for a few seconds when key is first placed in the ON position. If pump is not running, check fuses and pump relay.
If pump is running but fuel pressure is low, check for leaks, plugged fuel filter, or leaky injector.

on Mar 25, 2010 | 1999 Saturn SL

Tip

Car won't start? First thing would be to check all your fuses. Most fuse boxes...


Car won't start?
First thing would be to check all your fuses. Most fuse boxes are located under the driver side dash panel. Some cars do have an extra set of fuses on passenger side kick panel (foot area on door side)

If all fuses are good, then next thing would be to test your relays with an ohmmeter.

If all your your relays and fuses are good, you will want to check for fuel and spark. A car needs air, fuel and spark to run.

To check for spark, you can purchase and use a spark tester.
If you cannot obtain a spark tester, then the next best thing would be an ohmmeter. You can test the power coming from your coil packs or distributor depending on what you have. On distributorless vehicles (one with coil packs) the coil pack are attached to an ignition module. This module is powered by the Crankshaft Position Sensor. This sensor can be tested with an ohmmeter. The Crankshaft Position Sensor is the first thing to be tested if you have no spark in any cylinder. If you have spark in some cylinders but not all, then check the coil pack (1 pack per 2 cylinders).

If you have a distributor, test the coil that provides the spark.

If you have plenty of good strong spark, then the next step would be to check for fuel.
Fuel system consists of Fuel Tank, Fuel Pump, Fuel pump Relay, Fuel Filter, Fuel Pressure Regulator and finally carberator or injectors.

Fuel injected systems have a fuel rail. On the fuel rail is a test port for fuel pressure. If you have a fuel pressure tester you can test how much fuel pressure you have. Or you can place a rag over the valve and press it in to see if there is pressure. If not pressure, check that pump is running. You should hear it run for a few seconds when key is first placed in the ON position. If pump is not running, check fuses and pump relay.
If pump is running but fuel pressure is low, check for leaks, plugged fuel filter, or leaky injector.

on Mar 25, 2010 | Acura CL Cars & Trucks

3 Answers

Fuel pump wont run with key in on position,only when its cranking.


You know that how?

What testing told you that?

I would only be guessing (that is all we do here)

But it sounds as though the ignition switch is worn
& effects the fuel pump circuit, when in the on position,maybe!

Get yourself a wiring diagram & see how the system should work,
then test it at different points that are accessible

Jul 16, 2014 | 2000 Hyundai Elantra

1 Answer

Engine will not start.fuel pump does not run. intermittent problem. has been getting progressively worse. have changed fuel filter. checked electrical connectors.need accurate wiring diagram. chiltons...


start by checking the fuel pump fuse and relay. will the fuel pump run for a few seconds when you turn the key to the run position? If so you may need to replace the crank position sensor. When this goes bad the engine will turn over and start, but only run for a second or two then die like its out of gas.

If you do not hear the fuel pump coming on and the fuse and relay check out good then you will have to see if there is power going to the fuel pump. if power is present at the fuel pump plug then the fuel pump is bad

Oct 21, 2010 | 2003 Ford Mustang

1 Answer

Replaceing fuel pump


How to Replace a Fuel Pump
DIY & Save up to $219.24 (Complexity: Hard / Time: 3.2 hours)

Parts:
1. Fuel Pump - $140.07

Tools:
1. 3/8 in. Drive Ratchet - $7.55
2. Floor Jack - $145.54
3. Multimeter - $247.13
4. Jack Stand Set - $36.93
5. Flat Head Screwdriver - $3.14
6. Mallet Hammer - $6.83
7. Socket Set

Steps:
1 Locate the fuel pump.
- Tip: Safety Tip:Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or safety shoes.
2 Have a friend turn the key to the“ON” position while you listen for a high pitched hiss/whine coming from the electric fuel pump.
- Tip: If the fuel pump is located in the fuel tank, you can open the fuel cap and listen to hear the fuel pump. The fuel pump should run (priming the system with fuel) for a couple of seconds. Once it stops, you should be able to start the vehicle.
3 If the fuel pump does not make a sound (run and prime the fuel system) check to see if there is a fuse that supplies power to the fuel pump and check its location.
- Tip: Check the owner’s manual for location of the fuse box and fuel pump fuse.

4 Once you have found the location of the fuel pump fuse, remove the fuse from its housing and check to see if it is blown.
- Tip: A blown fuse will usually have a metal strip connecting both tabs that“blows out” (the wire looks as if it has been chopped in half or broken).

5 If you noticed that the fuse was blown, replace the fuse with a new fuse of the same amperage and repeat step 2.
6 If the fuel pump now works, you do not need to replace it. However, you will need to find what caused the fuel pump fuse to blow. We strongly recommend that this is done through a certified shop, unless you have the tools and knowledge to test electrical systems and diagnose more in depth problems.
7 If the fuse wasn’t blown, it should be checked for power and ground at the fuel pump. If there is power and ground present then you will need to replace the fuel pump.
- Tip: On most vehicles you may need to lower the fuel tank to access the power and ground leads for the fuel pump.

8 Siphon or drain as much fuel as possible from the fuel tank. Disconnect any possible fuel lines from the fuel tank.
9 Remove any retaining straps or bolts holding the fuel tank to the frame.
- Tip: You may be able to access the fuel pump from the bottom of the back seat or the trunk of the vehicle.

10 Using a digital multi meter, turn the key to the“ON” position and check for power at the fuel pump. Touch the negative lead from the DMM to a good ground and the positive lead of the DMM to the power cable at the fuel pump. You should have a reading that is equal to battery power. If you do not have a reading at all, you will need to inspect the power side of the fuel pump.
- Tip: With the ground lead of the DMM still connected to a good ground, touch the power lead to the positive side of the battery, to each side of the fuse, and again to the fuel pump. Wherever you notice the voltage reading goes from battery voltage to 0 you will need to replace whatever wires and fuse are in between.

11 If you have noticed that the power and ground being supplied to the fuel pump are both good, then you will need to replace the fuel pump.
- Tip: To check for a good ground, place the negative lead from the DMM to the ground side of the fuel pump, and the positive lead of the DMM to the positive side of the battery. If the reading on the DMM is battery voltage then you have a good ground.

12 Remove any retaining rings or bolts that hold the fuel pump in the fuel tank.
13 Remove any electrical connections or fuel lines connected to the fuel pump. Replace the fuel pump.
- Tip: If equipped, inspect and replace strainer as needed.

14 Use reverse procedure to install fuel pump and assemble all components back to their original state.
15 Start the vehicle to verify repairs.

Hope helps with this (remember rated this help) Good luck.

Feb 09, 2010 | 2001 Chevrolet Silverado 1500

1 Answer

Fuel pump problems


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

Apr 30, 2009 | Mercury Grand Marquis Cars & Trucks

2 Answers

Fuel pump problems 2003 s10 chev 4.3 v6


Your ECU is what acctivates your fuel pump realy. Put the key on the run possition and pull the ecu fuse for a few seconds and reinstall it ans it should accivate your realy for 5 seconds, Good luck.

Apr 01, 2009 | 2003 Chevrolet S-10

1 Answer

Fuel pump not running


Fuel Pump suse location #14 20Amp Relay box located on left side in engine compartment the location is marked on the fuse box, fuel pump relay is #1 on the same box if the relay has electrical power then go to the pump located inside the fuel tank.

Mar 17, 2009 | 1999 Lincoln Town Car

1 Answer

1995 Ford Tauras dies while running,


can you hear pump running when you turn key to the on position? if not it could be fuse or relay.if it does run take a fuel pressure chk.just because you put a new pump in does not mean it could not be bad it happens. this is worst case senerio. go fore fuse or relay. good luck. OLD SCHOOL.

Jan 10, 2009 | 1995 Ford Taurus

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