2004 Kia Sedona Engine is not accelerating properly after w

Tiny
BECCALYNN
  • MEMBER
  • 2004 KIA SEDONA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 63,000 MILES
We just had the drive belt replaced along with the AC compressor & clutch last week & then the belt tensioner replaced today (for free as it was not broken before we brought it in), then after a little driving around town, about 10 or so miles, I noticed the low gas light came on so I stopped & filled up (at a place we normally go, non-ethanol, 87 octane). I believe the van has a 19.5 gallon tank & I put in nearly 18 gallons (I filled it as full as I could get it). I drove less than 5 miles after that & then all of a sudden noticed that the engine was not running properly. When I try to accelerate the engine does nothing, but then it suddenly jumps as if the gas finally made it to the engine. It continually does this, sputtering, hesitating, then jumping. No matter how far I push the accelerator, the van will hardly accelerate and will just "jump." It does this whenever I try to accelerate, and is smooth if I just let it "coast". Is this a gas related issue? Everything was running perfectly smoothly before I put the van in the shop today and definitely before I filled up with gas. Please advise on what the problem may be and how to remedy.
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Wednesday, April 22nd, 2009 AT 10:43 PM

3 Replies

Tiny
MERLIN2021
  • EXPERT
http://www.2carpros.com/car_repair_video/test_fuel_injection_pressure.htm
Go here and checkout our video.
Problem is if you run low enough on gas, the pump can overheat, then you add the cold gas and failures useussly happen very quickly after that...check filter first, it may have clogged with sediment.
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Friday, April 24th, 2009 AT 3:18 PM
Tiny
BECCALYNN
  • MEMBER
I called Autozone & was informed that on the Kia's that the fuel filter is actually inside of the fuel pump, and the gas tank has to be taken out in order to reach the fuel pump. What a pain & plus to replace the fuel pump I was told would be $300-$400 just for parts. The engine is now running a little better, but it is idling rough, when I hold down the accelerator (while in park) it runs very rough near 2000rpm, then it will suddenly jump up 50rpm when no more pressure has been applied to the petal. While driving you still feel an off an on hesitation, and I can really feel it when I have the van in reverse and am backing out slowly & then the engine is very jumpy & rough. I took the van by Firestone where the original work was done & they seem stumped. I am dropping it off there soon for them to look over again. Any other ideas?
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Friday, April 24th, 2009 AT 7:13 PM
Tiny
MERLIN2021
  • EXPERT
Call Kia and see if any of it is covered under the wonderful 10 year 100,000 mile warranty, Test the pump before replacing it though.
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Saturday, April 25th, 2009 AT 7:05 AM

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