P0172 P0175 GM troubleshooting

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  • Опубликовано: 3 окт 2024

Комментарии • 14

  • @yyz125
    @yyz125 3 месяца назад +2

    Very good instruction on isolating each system that could cause the condition.

    • @HouseDoctorRay
      @HouseDoctorRay  3 месяца назад +1

      Thank you. This means a lot to me coming from you.

  • @Dorightby
    @Dorightby Месяц назад +3

    Wow this was the best explained video thank you so much man years with my scanner to still learning how to use it’s capabilities

  • @finessedyawife4915
    @finessedyawife4915 27 дней назад +1

    Awesome video brother. Thank you so much

    • @HouseDoctorRay
      @HouseDoctorRay  27 дней назад

      Thanks. Hopefully you won't need a high pressure fuel pump like I did.

    • @finessedyawife4915
      @finessedyawife4915 27 дней назад +1

      @@HouseDoctorRay after I just got done replacing all my fuel injectors I started getting these codes. My STFT reads at -4 to 0 at idle but my LTFT reads -35. So hopefully I can figure this out. My oil level did go up and my fuel pressure gauge only rise when I shut the truck off and turn the key to the on position. Same with my fuel pressure on the rail. It rises up too. So i know it’s not leaking from the injectors.

    • @HouseDoctorRay
      @HouseDoctorRay  26 дней назад +1

      If you change your oil and your LTFT go back to normal then you're probably getting gas in the crankcase from the high pressure fuel pump.
      There are some good videos on how to change it. The only problem I ran into is I broke the bypass tube on my thermostat housing when I pulled the intake out.

    • @finessedyawife4915
      @finessedyawife4915 26 дней назад +1

      @@HouseDoctorRay thank you I’ll keep an eye out on that. I really appreciate your help

  • @Dorightby
    @Dorightby Месяц назад +1

    How were you able to turn ignition back on without turning engine on my start stop button won’t let ignition turn on unless I put my foot on the break and actual engine turns on

    • @HouseDoctorRay
      @HouseDoctorRay  Месяц назад

      Mine is one of those prehistoric trucks with a key.
      I think if you hold the accelerator to the floor it will stop it from getting fuel and it won't start. Search 'clear flood mode' for your vehicle.

    • @HouseDoctorRay
      @HouseDoctorRay  Месяц назад +1

      Looks like you have to hold down the start button for about 5 seconds without stepping on the brake. Post back if that works so others will know.

    • @Dorightby
      @Dorightby Месяц назад +1

      @@HouseDoctorRayokay, yes you are correct hold down for 5 seconds… looks like it’s my high pressure fuel pump

    • @HouseDoctorRay
      @HouseDoctorRay  Месяц назад +1

      Bummer that it's your pump. There are some decent videos on how to do it yourself so I didn't bother making one.
      There is a link in the video description of my video on the pump I bought.
      Really no special tools needed other than a crowsfoot for the fuel line and a torque wrench.
      Worst part is leaning over into the engine compartment to reach everything.