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  1. UsernameIsTaken

    NEED HELP Persistent P2138 And Reduced Engine Power

    I recently hit 50,000 miles on my '04 Ascender and have had nothing but problems since. I've already cleaned the throttle body, replaced the fan clutch, and tested the APP sensor. The SES and REP lights seem to turn on at random and the only code I'm getting is the same P2138 every time. I tried...
  2. UsernameIsTaken

    SOLVED! Auto Dimming Side Mirrors?

    I just finished adding turn signal mirrors to my '04 Ascender and noticed that the driver's side glass was slightly yellow, similar to a Yukon SLT/Denali with burnt out auto dimming side mirrors. I removed the yellowed glass so I could replace it with the original one from my stock mirrors and...

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