Question about 1999 Chevrolet Silverado 1500

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Code po171 i have a 2005 chevy silverado with the 5.3 in it. it keeps lodgeing falt code 171 131 and 300 over and over again. I have cleared the codes checked it while driving and code 171 keeps coming back what can cause this and how do i fix it.

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  • m_tedesco Mar 14, 2009

    there is no fuel filter on this model from what i have read and seen the only filter is part of the sending unit in the tank. Any other infowould help

  • m_tedesco Mar 23, 2009

    not so sure about the tick but yes rough running. What do u think abot the O2 sensor i got that code as well bank one sensor one some told me that would do it as well.just dont want to start changing parts. If it was the intake shouldent the rpms go up when i sprayed it with carb clener around the base?

  • carhob May 11, 2010

    filter in tank is a strainer wich is before pump,03 pick ups has inline fuel filters,id be surprise that an 05 would have to drop gas tank to do routine maint.,usually filter is on frame rail driver side at middle of truck.

  • carhob May 11, 2010

    did you change fuel filter,clogged filter will give lean fuel code.

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I hate to break ya heart.. but Im quite sure its the Intake Gaskets.. Creating a lean P0171 condition.. Lemmie guess.. it ticks and runs a lil rough on cold mornings?? Lemmie know.. thanks

Posted on Mar 11, 2009

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