Fuel Rail Problems

Asked by Jul 14, 2013 at 02:12 PM about the 2004 Kia Optima EX V6

Question type: Maintenance & Repair

it is not getting fuel to the fuel rail. What is wrong?

6 Answers

25

Check for fuel pump operation and or pressure

2 out of 2 people think this is helpful.
59,055

Remove the gas cap and put your ear close to the filler tube. Have a helper turn the ignition on but DON'T crank the engine. You should hear the fuel pump run for about 3 seconds. If not, replace the gas cap and using a hammer, hit the bottom center of the gas tank while your helper tries to start the engine. Don't beat the tar out of it, just 3 or 4 whacks will do. If the engine starts you need a fuel pump. If not, check your fuel pump fuse and fuel pump relay. HTH. -Jim

1 out of 1 people think this is helpful.

if hitting the fuel tank with a hammer worked....why does this mean i need a new fuel pump?

59,055

Because the electric fuel pump is in the gas tank. It's basicly an electric motor with a fan (impeller) on it. It stopped working because the motor is worn and hit a "dead" spot. By banging on the gas tank the vibration jarred the motor and moved the insides of it past the dead spot and it started spinning and pumping gas again. Very glad it worked!! HTH. -Jim

1 out of 1 people think this is helpful.

IT worked, just like you said! thanks...now, I have to replace the fuel pump...can I axcess the pump through the back seat on a 2006 V6 LX?

59,055

I don't really know on your specific car. Some vehicles have an access panel on the trunk floor or under the back seat. Others require the gas tank to be removed. HTH. -Jim

Your Answer

Add photo

Related Questions

  • Code for low fuel rail pressure. 2 answers

    Car came into shop hardly running, had codes for random misfire, O2 sensor voltage low and high, fuel rail pressure low, did a complete tune up, replaced the O2 sensors, replaced the fuel pump assem...

    2011 Kia Optima LX

    -

    Maintenance & Repair

  • How Can I Get My Kia Optima Fix Without Taking To Dealer It says A Fuel Rail Pressure Low 4 answers

    Can this problem be fix by someone who works on cars so I don't have to take it to dealer

    2012 Kia Optima LX

    -

    Maintenance & Repair

  • Kia 2004 Optima Stalls when I put it in gear. 3 answers

    2004 Kia Optima 2.4l 16 Valves Problem :Car idle smooth but when I put it in gear it stalls and goes to backfiring. The start of this problem the engine light came on to solve that problem I replaced...

    2004 Kia Optima LX

    -

    Maintenance & Repair

  • Electrical problems after battery replacement 5 answers

    I replaced the battery. Now anything that needs battery to hold its setting resets to zero when I turn car off. Everything works fine when car is running. But when I turn car off, locks wont work, f...

    2014 Kia Optima LX

    -

    Maintenance & Repair

  • fuel pump reset switch location 1 answer

    trying to find location for fuel pump reset switch vehicle was involved in a rear end accident now the car want run trying to locate switch to see if thats the problem.

    2008 Kia Optima LX

    -

    General

Optima

Looking for a Used Optima in your area?

CarGurus has 31,320 nationwide Optima listings starting at $1,250.

ZIP:

Search Kia Optima Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Kia Optima Experts

#1 Tom Demyan
Tom Demyan
Reputation 920
#2 kc07kia
kc07kia
Reputation 390
#3 James Warner
James Warner
Reputation 360
View All

Related Models For Sale

Used Hyundai Sonata
705 Great Deals out of 49,237 listings starting at $1,989
Used Honda Accord
1,013 Great Deals out of 75,624 listings starting at $899
Used Nissan Altima
1,089 Great Deals out of 83,139 listings starting at $1,600
Used Toyota Camry
1,238 Great Deals out of 97,272 listings starting at $1,250
Used Nissan Maxima
398 Great Deals out of 24,557 listings starting at $999
Used Chevrolet Malibu
1,185 Great Deals out of 83,205 listings starting at $1,800
Used Honda Civic
858 Great Deals out of 70,842 listings starting at $1,200
Used Kia Sorento
535 Great Deals out of 34,973 listings starting at $1,999
Used Hyundai Elantra
662 Great Deals out of 53,014 listings starting at $895
Used Chevrolet Impala
956 Great Deals out of 35,425 listings starting at $1,700
Used Mazda MAZDA6
193 Great Deals out of 15,694 listings starting at $2,400

Used Cars For Sale

2016 Kia Optima For Sale
54 Great Deals out of 16,963 listings starting at $12,987
2015 Kia Optima For Sale
118 Great Deals out of 3,866 listings starting at $9,885
2014 Kia Optima For Sale
117 Great Deals out of 2,814 listings starting at $8,499
2013 Kia Optima For Sale
187 Great Deals out of 3,440 listings starting at $6,990
2012 Kia Optima For Sale
45 Great Deals out of 992 listings starting at $5,995