Question about 2002 Kia Spectra

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Fuel pump possible problem

How do I check fuel pump is working, and if its what might the problem be . Not getting fuel to injectors

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  • midntfalcon Apr 05, 2009

    My 2002 kia spectra is'nt getting fuel. It's not the fuel pump, bought a new one. checked fuses . relays? Are there any hidden shut offs ,relays, or fuses?

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Here is a good website for all of your needs on figuring out if it is the full pump or if it is something else.

http://www.aa1car.com/library/2003/us60324.htm

Posted on Feb 08, 2009

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Late start after head service and injector replacement, already code the injector. it will just start and stop for few crank. n finally start


Hi Ashneel

Sounds like you've had head (gasket) service, and replaced the injector(s), and are getting more injector codes. If you have a code reader (they're pretty cheap on eBay), you can get more particulars. However, you're getting an injector code with a new injector? I'd then suspect:
  1. The fuel system upstream of the injector.
  2. The electronics connecting to the injector.

Hopefully there would have been some basic tune-up work done in conjunction with the head and injector work, but...
  • If the fuel filter hasn't been replaced recently, consider replacing it. A clogged filter can starve the injector for enough gas to inject.
  • How old is the fuel pump? It clearly is working, but if it's on it's last legs and not pumping like it ought to be, again you can be starved for fuel.
  • Have you refilled your gas since the work? It's possible you got batch of suspect gas. You might consider dumping a bottle of Octane boost in to see if things run better (or well enough to burn off the old gas).
  • Your electronic ignition system (or distributor if the vehicle is of that era) controls the coordination of fuel, spark, and crankshaft position. Check the wiring to the injectors at both ends to make sure there's not a loose connection or cable patch. Check the fuse and or relay for the fuel pump and EIS.
It's also possible that fuel is a red herring, and you might have a really dirty air filter, or fouled/poorly connected spark plugs.

Hoping this helps you narrow it down!
D

Nov 24, 2015 | Cars & Trucks

2 Answers

I have replaced the fuel pump on my 1994 pontiac grand prix with the 3.1 litre v6. But it does not seem to be sending the fuel to the motor? In the instructions it says something about the oil pressure...


Are you sure that the fuel pump is properly installed? Have you tested the fuel pump circuits to see if they are working properly? Did you also replace your fuel filter? (It could be totally clogged up) Have you checked to see if there is any fuel pressure at the fuel rail or are you just assuming that the pump is not delivering fuel to the injectors? Have you checked your fuel injector circuits for power and for injector pulse from the EngineControl Module? Have you scanned your Engine Control module to see if you possibly have a Crank Sensor or Cam Sensor problem?

The oil pressure switch only keeps the fuel pump running once the engine starts. The fuel pump should run for 2-3 seconds when you turn the ignition switch to the "Run" position to prime the injectors. The oil pressure switch is the problem only if the engine will not continue to run on its own after it starts up.

Jan 24, 2011 | 1994 Pontiac Grand Prix

1 Answer

My car has set for a couple years. Has spark, no fuel to inlet side of fuel rail. Fuel pump? How to test and how to replace? Do I have to remove the fuel tank?


I have pasted pump removal procedures below, but recommend you read the following before going after the pump:
A good first check if fuel delivery problems are suspected is to spray some starting fluid into the intake system while someone cranks the engine. If the engine starts or tries to start with starting fluid, it is not getting fuel. In most modern cars, the fuel pump is inside the gas tank and is also usually sold with the fuel gage sending unit--an expensive and laborious R&R job. If the pump is working, you should hear it at least momentarily when the key is turned to the "on" position. If the pump is not working, the cause could be a fuse, a relay, an accident "kill" switch that needs resetting, or the pump itself. You'll want to rule out all of the inexpensive possibilities first. Use your owners manual (you can often find these online if you don't have the original) to locate the applicable fuse, relay, and/or cutoff switch. To check the relay and ignition switch, follow procedures at http://www.fixya.com/cars/r6022358-relay_check. You can also check for voltage at the pump connector with a test light. (Note, the Talon uses the MFI relay to power the fuel pump. This is a 9-terminal relay and may be difficult to troubleshoot using the above link).
Assuming your pump works, fuel still needs to get to the engine. A clogged filter will certainly limit fuel flow, but will rarely prevent a car from starting. That said, filter replacement is an inexpensive bit of maintenance. Most likely cause of fuel not getting to the engine when the pump is working is the fuel injection system (not an issue for carbureted engines). Injection systems are beyond the scope of this tip, but there are a couple things you can check. Many anti-theft systems cut off the injectors when activated. If you have such a system, make sure your anti-theft system has not been activated. Also, the injectors require a certain level of fuel pressure. Though your pump may be working, it may not be producing pressure. If possible, have your fuel pressure checked or borrow the appropriate tool to test the pressure. Always check pressure at the fuel rail, as some designs include a separate regulator that is typically in the line in the engine compartment. The injectors may be controlled by an injector module or directly by the engine or powertrain control module/computer. The signals sent to the injectors can be checked using a special tester or oscilloscope. A simple but crude method of checking injector operation is to put a long screwdriver on the injector body and hold the handle to your ear while someone cranks the engine. If the injectors are working, you should hear the solenoid click once every 2 revolutions.

Finally, if you are getting fuel to the engine, make sure it isn't old or contiminated.


jturcotte_162.gif



Fuel Pump removal Instructions from autozone.com
1990-94 Vehicles
EXCEPT AWD MODELS

See Figures 1, 2, 3 and 4
  1. Properly relieve the fuel system pressure as outlined earlier in this section.
  2. Raise and safely support the vehicle.
  3. Drain the fuel from the fuel tank into an approved gasoline container.
  4. Remove the electrical connectors at the fuel pump. Make sure there is enough slack in the electrical harness of the fuel gauge unit to allow for the fuel tank to be lowered slightly. If not, label and disconnect the electrical harness at the fuel gauge unit.



CAUTION Cover the high pressure fuel hose with rags to prevent splash of fuel caused by residual pressure in the fuel pipe line.

  1. Disconnect the high pressure fuel line connector at the pump.
  2. Loosen self-locking nuts on tank support straps to the end of the stud bolts.
  3. Remove the right side lateral rod attaching bolt and disconnect the arm from the right body coupling. Lower the lateral rod and suspend from the axle beam using wire.
  4. Remove the holding bolt and gasket from the base of the tank.
  5. Remove the fuel pump assembly.

Nov 14, 2010 | 1990 Eagle Talon

1 Answer

Changed fuel pump now car won't start does it have a reset button


no reset. Most likely the fuse or relay is the problem. These are usually in the engine compartment relay box. Here are some notes that may help:

A good first check if fuel delivery problems are suspected is to spray some starting fluid into the intake system while someone cranks the engine. If the engine starts or tries to start with starting fluid, it is not getting fuel. In most modern cars, the fuel pump is inside the gas tank and is also usually sold with the fuel gage sending unit--an expensive and laborious R&R job. If the pump is working, you should hear it at least momentarily when the key is turned to the "on" position. If the pump is not working, the cause could be a fuse, a relay, an accident "kill" switch that needs resetting, or the pump itself. You'll want to rule out all of the inexpensive possibilities first. Use your owners manual (you can often find these online if you don't have the original) to locate the applicable fuse, relay, and/or cutoff switch. To check the relay and ignition switch, follow precedures at http://www.fixya.com/cars/r6022358-relay_check. You can also check for voltage at the pump connector with a test light.
Assuming your pump works, fuel still needs to get to the engine. A clogged filter will certainly limit fuel flow, but will rarely prevent a car from starting. That said, filter replacement is an inexpensive bit of maintenance. Most likely cause of fuel not getting to the engine when the pump is working is the fuel injection system (not an issue for carbureted engines). Injection systems are beyond the scope of this tip, but there are a couple things you can check. Many anti-theft systems cut off the injectors when activated. If you have such a system, make sure your anti-theft system has not been activated. Also, the injectors require a certain level of fuel pressure. Though your pump may be working, it may not be producing pressure. If possible, have your fuel pressure checked or borrow the appropriate tool to test the pressure. Always check pressure at the fuel rail, as some designs include a separate regulator that is typically in the line in the engine compartment. The injectors may be controlled by an injector module or directly by the engine or powertrain control module/computer. The signals sent to the injectors can be checked using a special tester or oscilloscope. A simple but crude method of checking injector operation is to put a long screwdriver on the injector body and hold the handle to your ear while someone cranks the engine. If the injectors are working, you should hear the solenoid click once every 2 revolutions.

Oct 15, 2010 | 1996 Chrysler Cirrus

2 Answers

No fuel to injectors why


Here are some troubleshooting ideas--let me know if you have more questions.
In most modern cars, the fuel pump is inside the gas tank and is also usually sold with the fuel gage sending unit--an expensive and laborious R&R job. If the pump is working, you should hear it at least momentarily when the key is turned to the "on" position. If the pump is not working, the cause could be a fuse, a relay, an accident "kill" switch that needs resetting, or the pump itself. You'll want to rule out all of the inexpensive possibilities first. Use your owners manual (you can often find these online if you don't have the original) to locate the applicable fuse, relay, and/or cutoff switch. To check the relay and ignition switch, follow precedures at http://www.fixya.com/cars/r6022358-relay_check. You can also check for voltage at the pump connector with a test light.
Assuming your pump works, fuel still needs to get to the engine. A clogged filter will certainly limit fuel flow, but will rarely prevent a car from starting. That said, filter replacement is an inexpensive bit of maintenance. Most likely cause of fuel not getting to the engine when the pump is working is the fuel injection system (not an issue for carbureted engines). Injection systems are beyond the scope of this tip, but there are a couple things you can check. Many anti-theft systems cut off the injectors when activated. If you have such a system, make sure your anti-theft system has not been activated. Also, the injectors require a certain level of fuel pressure. Though your pump may be working, it may not be producing pressure. If possible, have your fuel pressure checked or borrow the appropriate tool to test the pressure. Always check pressure at the fuel rail, as some designs include a separate regulator that is typically in the line in the engine compartment.

Oct 03, 2010 | 1997 Dodge Intrepid

2 Answers

I was driving and lost power to car, Odometer needles and all started spinning. Towed home but was told it was not alternator and now when u try to start it wont startw ithout ether,Once ether is ut car...


It could be any of those things or possibly the fuel pump relay--you will have to troubleshoot a bit to know which one.
Because of what the odometer did, I suspect your problem is actually with the PCM/injectors. The easiest way to test the operation of the fuel injectors is to listen for a clicking sound coming from the injectors while the engine is cranking. This is accomplished using a mechanic's stethoscope, or a long screwdriver. Place the end of the stethoscope or the screwdriver (tip end, not handle) onto the body of the injector. Place the ear pieces of the stethoscope in your ears, or if using a screwdriver, place your ear on top of the handle. An audible clicking noise should be heard; this is the solenoid operating. If the injector makes this noise, the injector driver circuit and computer are operating as designed. If the injectors are not clicking, they are probably not getting a signal from the powertrain control module (computer). This could be caused by a faulty camshaft position sensor. If your check engine light is staying on, there is a fault code stored in the computer that might tell us that, but you would need to have the car scanned to get the code out. My guess is that it is not the sensor but the computer itself.

If you find that the injectors are working, go on to check outher parts of the fuel delivery system as follows:

The fuel pump is inside the gas tank and is also usually sold with the fuel gage sending unit--an expensive and laborious R&R job. If the pump is working, you should hear it at least momentarily when the key is turned to the "on" position. If the pump is not working, the cause could be a fuse, a relay, an accident "kill" switch that needs resetting, or the pump itself. You'll want to rule out all of the inexpensive possibilities first. Use your owners manual (you can often find these online if you don't have the original) to locate the applicable fuse, relay, and/or cutoff switch. To check the relay and ignition switch, follow precedures at http://www.fixya.com/cars/r6022358-relay_check. You can also check for voltage at the pump connector with a test light.
Assuming your pump works, fuel still needs to get to the engine. A clogged filter will certainly limit fuel flow, but will rarely prevent a car from starting. That said, filter replacement is an inexpensive bit of maintenance. Most likely cause of fuel not getting to the engine when the pump is working is the fuel injection system. Injection systems are beyond the scope of this tip, but there are a couple things you can check. The injectors require a certain level of fuel pressure. Though your pump may be working, it may not be producing pressure. If possible, have your fuel pressure checked or borrow the appropriate tool to test the pressure. Always check pressure at the fuel rail or carburetor, as some designs include a separate regulator that is typically in the line in the engine compartment.
Let me know if you have questions.

Oct 03, 2010 | 1999 Mercury Cougar

1 Answer

Have a 96 tahoe 5.7 replaced the fuel pump,harness,filter and relay got it to work again now it isnt getting fuel to the plugs is it possible the injectors have gone bad?


Fuel Injectors possible, however the problem may actually be with the Fuel Injector Pressure Regulator.
Before deciding if it is the Fuel Injectors Check this first. This could be clogged or malfunctioning.
The Fuel Injector Pressure Regulator is available at:
(NO! I do not work for either store/company)
Autozone Part #800-315 for around $45.
Advance Auto Part #217-3074 for around $90.
Advance Auto Part #23043 for around $46.
Adavance Auto REBUILD KIT Item #9710 for around $29.
Let me know if this helped, or if you have additional information or questions. Feel free to contact me at FixYa.com!

Feb 18, 2010 | 1996 Chevrolet Tahoe

1 Answer

Is it possible that the computer on my 92 geo tracker is what's keeping it from starting???? will the engine turn but no strat????


turn the key to acc mode and if the check engine light is on then the computer is working. check for spark. listen for the fuel pump to turn on its in the back passenger side if both those work and you didnt mess with distributor plugs rotor or cap then you may have to bypass it. or the fuel injector could be clogged. take off the metal air intake to get to the fuel injector and pour a little gas directaly in and see if it starts. if fuel pump spark and pouring gas into were the fuel injector is then it might be a bad fuel injector or it needs to be bypassed.

Dec 21, 2009 | 1992 Geo Tracker

1 Answer

2001 gmc sonoma,not getting gas


Have you checked for fuel in the fuel rail? If so have you checked the injectors. If the problem is located in the injectors then there are two possible problems:
1...All of your injectors are clogged. Highly unlikely but possible.
2...Your computer is not sending a injector cycle command to the injector. This could be caused by a faulty cam position sensor or a faulty computer.

Jan 17, 2009 | 2001 GMC Sonoma Extended Cab

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