Recent content by GCDenali

  1. GCDenali

    Acceleration hesitation

    Bosch plug wires were the only option at the parts store. No the plugs were pre gapped. I torqued to spec. Gasket looked fine. I’ll check the upstream sensors, you are referring to o2 sensors correct?
  2. GCDenali

    Acceleration hesitation

    How would one test the Nnock retard? Was running fine 193,000 miles never had the plugs or wires changed so that’s why I did it. I used mass airflow cleaner to clean the sensor and throttlebody cleaner to clean throttle plate. It has a slight rough idle now, no codes
  3. GCDenali

    Acceleration hesitation

    Appreciate the insight I’ve changed the plugs and wires cleaned out the mass airflow sensor and throttlebody new air filter too. No misfires smooth idle seemed to drive fine yesterday when I drove it up to the store to get the fuel pressure gauge when this happened on Friday I could stomp the...
  4. GCDenali

    Acceleration hesitation

    I’ve been driving it around the fuel pressure doesn’t go above 43 psi even when I floor it it bars down and stays at 43
  5. GCDenali

    Acceleration hesitation

    Alcohol percent 0%
  6. GCDenali

    Acceleration hesitation

    Long term bank 1 -7.03% Short term bank 1 fluctuating between +2.13% down to -3.13% Long term bank 2 0.78% Short term bank 2. Fluctuating all over the place from -.78% to +3.13% Fuel pressure running at Idle 43.08psi
  7. GCDenali

    Acceleration hesitation

    54.82psi key on, engine off. engine running fluctuates between 42.64 and 43.51 psi
  8. GCDenali

    Acceleration hesitation

    Yes it runs smooth. What’s the best option for a scanner that will reset the fuel percentages that won’t break my wallet? I’ll run by harbor freight this morning to pick a pressure gauge.
  9. GCDenali

    Acceleration hesitation

  10. GCDenali

    Acceleration hesitation

    I have a new to me 2011 Tahoe Z71 with 196k. It was a Northern vehicle, so I’ve been slowly replacing parts that are badly worn or rusted. I’ve replaced plugs and wires with AcDelco Iradiums. Cleaned and removed the throttle body and MAF sensor. I’ve also replaced all axle and transfer...
  11. GCDenali

    Interior lights not staying on.

    Definitely not pressing the dome over ride button. All the lights come on when I initially unlock the doors with the FOB but turn off after about 30 seconds even with the doors open. Its very strange
  12. GCDenali

    Interior lights not staying on.

    Come to think of it My radio does stay on when I exit the car. None of the doors cause the lights to turn on. Try spraying WD directly in the latches? Also why won the map lights turn on when I push the buttons? They will turn on from the dimmer but not individually
  13. GCDenali

    Interior lights not staying on.

    Im having an issue with my interior lights not coming on when the doors are open. I also am not able to use my map lights by depressing the buttons. I can turn all my lights on via the dimmer switch. All the lights will come on when I push the unlock button on my FOB. Is there a fuse that might...
  14. GCDenali

    Trutrac in awd denali

    Thanks! Where would you guys recommend purchasing this?
  15. GCDenali

    Trutrac in awd denali

    What exactly is a trutrac?
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