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P0053 2005 Trailblazer

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  • #538674
    David GullageDavid Gullage
    Participant

      We were traveling in the Northeast, I had a few instances of hard starting, usually after a fill up. Seemed like a lack of fuel issue. The check engine light came on while in New York, P0053 was the code. Give me an idea on what to look at.

      Thanks

    Viewing 6 replies - 1 through 6 (of 6 total)
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    • #538699
      college mancollege man
      Moderator

        the heater circuit in the o2 did not come up to temp.
        check the fuse.with key on engine off.check for 12v
        on the o2 heater circuit. next check the o2 heater
        circuit with an ohm meter.

        http://ww2.justanswer.com/uploads/Bluegorilla/2009-09-20_034502_p0054.pdf

        #539185
        David GullageDavid Gullage
        Participant

          Thanks for the help, looks like everything checks out OK. What next?

          #539193
          dreamer2355dreamer2355
          Participant

            What testing did you do to diagnose that code?

            #539210
            college mancollege man
            Moderator

              [quote=”DaveG” post=69910]Thanks for the help, looks like everything checks out OK. What next?[/quote]

              What testing did you do?

              #539283
              David GullageDavid Gullage
              Participant

                I used a Harbor Freight ODB code reader. I read the code and reset it. It has not returned the code since.

                #539292
                college mancollege man
                Moderator

                  You need to test the heater circuit. my
                  previous post will help. keep us posted.

                Viewing 6 replies - 1 through 6 (of 6 total)
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