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2005 Hyundai XG350 acceleration

Tiny
SALTYPUP
  • MEMBER
  • 2005 HYUNDAI XG350
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 58,550 MILES
After 4 years of running fine, all of a sudden my car has stopped accelerating when I am on the interstate. I'll be driving along and when I step on the pedal. Nothing happens. I can floor it sveral times and still nothing. I'll then pull over (put brakes on) and when I am slowing down or stopped, the car will then run normal again.
I took it to the dealer, it happened to driver/tester and they decided that it was the fuel pump, they replaced it and the sock. When I was driving home, it happened two more times.
I am almost out of warranty and would like the dealer to fix my problem while I'm still under.
No one seems to have a clue? Do you?
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Saturday, June 5th, 2010 AT 10:47 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Inspect and test all the following listed below:

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard.
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Saturday, June 5th, 2010 AT 6:16 PM

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