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JaMes Bryant Posted on Aug 31, 2013
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99 3.o v6 grand caravan started hesitated while drive not bad but could tell. for a month went by then after being parked at work it wouldn't start got it towed home figured it was the fuel filter so i replaced still same problem replaced fuel pump with no improvement it does start after cranking for a min and idles fine. Accerlerate slow is fine up to about 25 mph then it just cuts out same with heavy accelerating just cuts out completely but upon release of the gas pedal it returns to normal idle operation only trouble codes come up are 23 and 55 any help would be appreciated on where or what to look at next Aug 31, 2013

  • 2 more comments 
  • JaMes Bryant
    JaMes Bryant Sep 02, 2013

    has bad oil leak from valve cover but its always leaked

  • Brad Brown Sep 03, 2013

    Those codes: 23 is bad intake temperature sensor. 55 is the signal for the end of the codes. So you really only have one and it is the MAF module that senses the air temp. With no signal from that sensor the engine does not know how to set the air fuel ratio.

  • JaMes Bryant
    JaMes Bryant Sep 05, 2013

    ok i took it in to have the codes read and the guy at the shop said it was TPS so i replaced it and still the same so i am sure you are correct. WHere i might find this MAF module to replace

  • JaMes Bryant
    JaMes Bryant Sep 05, 2013

    thanks found it was map tho i guess mine dont have maf but you got me in the direction appreciate you help

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Brad Brown

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  • Dodge Master 19,187 Answers
  • Posted on Aug 31, 2013
Brad Brown
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How are you getting those codes? They dont match with any lists for that year and make

Testimonial: "holding the two buttons on the dash turn key on wait 5seconds push the trip button and it flashes 23 55 over and over"

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1 Related Answer

Anonymous

  • 19 Answers
  • Posted on Feb 20, 2010

SOURCE: Perfect Idle, no Codes, but stepping on gas causes hesitation

i would try cleaning mass air sensor, its mounted in air duct between air filter and throttle body, they sell the cleaner at auto parts stores, also as stated bofore make sure the intake pipe clamps are tight and it's not cracked, if that doen't fix it i would investigate a fuel pressure problem either a weak pump or problem with regulator

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