Fuel Rail Problems

pam711
0

Asked by pam711 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

swat6
25

Check for fuel pump operation and or pressure

2 out of 2 people think this is helpful.
Js08016
22,805

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.
jackofallmstrofnone
0

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

Js08016
22,805

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.
jackofallmstrofnone
0

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?

Js08016
22,805

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

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