Question about 2003 Chrysler 300M

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When my chrysler 300 gets up to 40 mph then 70 mph it starts to ****, and also when im going up a hill it starts slowing down even when the pedal is floored

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  • Daquavian Sep 30, 2010

    I actually have the 2006 chrysler 300 c model

  • Daquavian Sep 30, 2010

    My chrysler 300 c gets up to certain 40 mph then it starts to ****, then a again at 70 mph. I also noticed that when i am going up a hill it starts to reduce in speed even if the pedal is floored could this be a oxygen sensor, camshaft problem or what?

  • Daquavian Sep 30, 2010

    Thank you, you said the samething another person just told me

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  • Chrysler Master
  • 22,095 Answers

Change the mass air flow sensor ,the one in the air intake pipe near air filter ,sounds like its on its way out

Posted on Sep 30, 2010

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  • Chrysler Master
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The very first thing u must do here is have the electronic engine control system tested for fault codes, there are just to many problems that can cause this, so to guess is a really expensive thing to do, go to Kragen or Autozone and have them read the system fault codes, ask for a OBD2 fault code test, it is free.

Posted on Sep 30, 2010

  • yadayada
    yadayada Sep 30, 2010

    O2 sensors will not cause a loss of power, a camshaft position sensor will along with fuel pressure problems

  • jlovejai Jan 21, 2011

    hi my 300m 2000 check engine light is on and is slugish and mph dont work can u please tell me the problem please dont work in auto tran nethier please help

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