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  1. J

    2015 Yukon "System Too Rich" code, engine issues (P0172, P0175)

    both are related to rear O2 sensor reporting back to the ecu about air-fuel mixture post cat. P0172 too rich, bank 1 P0175 too rich, bank 2 so when you're parked & idling, are the cooling fan on? why I ask is when the intake air temperature rises the ecu will start to add fuel to help cool the...
  2. J

    MagnaRide

    so i searched the Dorman part number 949-730 front magnaride strut assembly. the prices are for individual strut assembly.
  3. J

    MagnaRide

  4. J

    MagnaRide

    nice...are they made in USA?
  5. J

    Y pipe

    factory cats are worth ~20whp..for turbo'ed cars..well at least daily ricer burner.. Also looking for a "Y Pipe" replacement..want to run a X and duals or large single.. not to mention right under the tranny pan..geez...
  6. J

    AFM FOR MY 2015 Yukon Denali

    and you swapped out cams & lifters? what was the delta in gas mileage for AFM delete and then with cams & lifters?
  7. J

    Oil for 5.3L to reduce consumption

    0W20 0 will flow down to -35 F 5W30 5 will flow down to -22 F The first number with the “W” is the “Winter” value and represents the lowest temperature at which the oil will flow. A lower number means it will still flow at a lower temperature. once up to operating temperature the differences...
  8. J

    AFM FOR MY 2015 Yukon Denali

    The last 400+ mile trip..with AFM off?
  9. J

    HPtuners recommendation

    Tuners Inc... Tuners Inc. · Page · Automotive Customization Shop · (904) 276-7223 · TunersInc.com · Rating · 5.0 (202 Reviews). Rating: 5 · ‎133 votes
  10. J

    Stick with OEM calipers or aftermarket??

    i was searching for brake upgrades on here and ran across another post that 4 pots that are GM and bolt on. for less than 200 aside..https://parts.mcelveen.com/p/GMC__Yukon/Caliper/94406215/13536580.html?partner=googlebase
  11. J

    Fans run like the engine is overheating, coolant gauge reads no temperature, A/C disengaged.

    so replaced the thermostat & housing (can we find the thermostat by itself?). only could find a 207 thermostat. will hunt for the factory after turkey weekend. The fans did not come on. warmed to 210. Have gas up later today for a "test drive". knock on wood.
  12. J

    Fans run like the engine is overheating, coolant gauge reads no temperature, A/C disengaged.

    skipping record over here.. new to me 2016 Tahoe with 126K miles. past monday..the fans came on while the "wife" was running the youngins around. google search with the symptoms..replace coolant temperature seonsor.. replaces the ECT (engine coolant temperature sensor) with one from...

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