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Fuel pump replacement

Tiny
CHANCEDXN
  • MEMBER
  • 2005 KIA AMANTI
  • 3.5L
  • V6
  • 2WD
  • AUTOMATIC
  • 215,009 MILES
The car will not accelerate much beyond idle. It previously had trouble starting so I would press the gas pedal when starting. What steps do I need to know to succeed?
Monday, December 7th, 2020 AT 2:32 PM

15 Replies

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I'm Danny.

The first thing you should do is perform a fuel pressure test. If you don't have access to a fuel pressure tester most auto parts stores have a tool loaner program and can rent you one. Here is a tutorial showing what is involved performing a fuel pressure test:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

The fuel pressure specification for your car is 50 PSI at idle. After you perform this test get back to us and we'll go from there. Hope this helps and thanks for using 2CarPros.
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Monday, December 7th, 2020 AT 2:51 PM
Tiny
CHANCEDXN
  • MEMBER
  • 11 POSTS
I have the fuel pump, what do I do now?
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Tuesday, December 8th, 2020 AT 7:51 AM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.

Here is a tutorial for you to view on how to change an in-tank fuel pump:

https://www.2carpros.com/articles/how-to-replace-an-electric-fuel-pump

I've attached picture steps below on the fuel pump replacement for your car. Installation is reverse steps of removal. Hope this helps and thanks again for using 2CarPros.
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Tuesday, December 8th, 2020 AT 10:37 AM
Tiny
CHANCEDXN
  • MEMBER
  • 11 POSTS
I can't remove the fuel pump connector. I broke a small piece. Is there a replacement if I break it?
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Wednesday, December 9th, 2020 AT 2:16 PM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.

Can you use your cell phone to take a picture of the connector and upload it here? That way I will have any idea what it looks like and where to find a replacement. Get back to us and we'll go from there. Hope this helps and thanks again for using 2CarPros.

Danny-
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Wednesday, December 9th, 2020 AT 5:10 PM
Tiny
CHANCEDXN
  • MEMBER
  • 11 POSTS
I uploaded the picture, after replacing the pump and driving the car once it won't start.
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Saturday, December 26th, 2020 AT 12:52 PM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.
Just to be on the same page you replaced the fuel pump and the car is still not starting? Please advise. Thanks again for using 2CarPros and Happy Holidays.

Danny-
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Sunday, December 27th, 2020 AT 10:41 AM
Tiny
CHANCEDXN
  • MEMBER
  • 11 POSTS
Yes, I followed the instructions, the only problem was the breakage of the clip. I drove it to work and back and have been unable to get it to start since.
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Sunday, December 27th, 2020 AT 11:23 AM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.

So with the broken clip does the harness keep unplugging causing the fuel pump to not work, car not start?

Danny-
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Sunday, December 27th, 2020 AT 12:01 PM
Tiny
CHANCEDXN
  • MEMBER
  • 11 POSTS
I don't think that is the problem, it seems fine.
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Sunday, December 27th, 2020 AT 7:44 PM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.

Okay, what is the car doing now? Is the vehicle starting, running? Thanks again for using 2CarPros.

Danny-
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Tuesday, December 29th, 2020 AT 12:51 AM
Tiny
CHANCEDXN
  • MEMBER
  • 11 POSTS
It won't start, everything is connected.
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Thursday, December 31st, 2020 AT 3:04 PM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.

Okay, next step is to pull the spark plugs individually and see if you're getting spark to the cylinders. Crank the engine over with the spark plug connected to the spark plug wire while not mounted in the cylinder head to see if its getting spark. Here is a tutorial showing cranking-no start theory:

https://www.2carpros.com/articles/car-cranks-but-wont-start

Let us know what you find. Hope this helps and thanks again for using 2CarPros. Happy Holidays.

Danny-
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Thursday, December 31st, 2020 AT 7:20 PM
Tiny
CHANCEDXN
  • MEMBER
  • 11 POSTS
Any information on changing the spark plugs? I am not sure how to.
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Sunday, January 31st, 2021 AT 2:17 PM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.

Here is a spark plug replacement tutorial for you to view:

https://www.2carpros.com/articles/how-to-change-spark-plugs

I've attached picture steps below showing spark plug replacement for your vehicle. Keep us updated. Hope this helps and thanks again for using 2CarPros.

Danny-
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Tuesday, February 2nd, 2021 AT 7:04 PM

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