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SixTwo Z71

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  1. Tjbrande, I had those issues you have and the under dash grounding fix didn’t work for me. Try disconnecting and brushing all the battery connections with a wire brush or terminal cleaner. My connections all looked fine but I disconnected all the wires connected to the battery and cleaned them anyway, haven’t had any issues since.
  2. So this did not fix my issue. Drove it for a few weeks and the problems persisted, most notably a brief loss of power steering and all gauges when turn signal or brakes were initiated. Fortunately I wasn’t needing to make turns, just traveling straight at 75mph with my wife and child in the truck. When I got to my destination, I wiggled the battery cables, they did not budge, but when I restarted the truck to head home all the issues were gone. At home I cleaned all the battery connections thoroughly, although they were already clean and nuts were all tight. Have had no issues now for approx 3 weeks, not even the dimming lights. I’m skepical that this was my entire issue but time will tell. FYI, battery is only 1 year old
  3. Ok I just did this last night. I figured it couldn’t hurt. The rubber sound proofing was definitely clamped under the grounding cable washer. No issues this am, however, my issues with the dimming/flickering lights, and temporary loss of power steering when turning at a slow pace were pretty intermittent. My truck even shut completely off a few times when turning into a parking spot or a drive, I had to turn the key to restart. So hopefully this will help. This seemed like the same thing that happened back in late 2017 when GM issued the TSA Recall 17V-414. My dealer fixed it and I was good until about 2 months ago when it would intermittency do this again. I wouldn’t recommend taking it to your dealer unless you can have them climb in the truck with you when it is happening, otheriwise you’ll pay $117 for them to say that dimming/flickering lights are normal, bs. Their service manager must be busy because he was supposed to call me back 11 days ago regarding my concerns for safety. One other thing, I think everyone here has downplayed how difficult it is to reach/manipulate that bold and cut the soundproofing. If you have large hands it will be challenging
  4. Mine are factory, bow tie in the center, 22”. Never seen them in black from the factory
  5. Got my truck back today. Tech confirmed cylinder #4, intake push rod was bent, replaced. No other issues noted. Tick is now gone. Any ideas why this push rod may have bent, specifically without lifter failure? Thanks
  6. 2014, Silverado, 6.2 Z71, at approx 36k miles in January of 2017 I noticed a ticking from my engine bay, passenger side, which was never present before. Couldn’t hear it from inside the truck but from the outside it was definitely noticeable. No codes or noticeable change in performance during my daily commute. Local chevy dealer had it for a few days, and I can’t find the documents right now but they replaced a bent push rod and I think 2 lifters, I believe cylinder #4 was the main culprit. No more tick after the warranty repair. Fast forward to 12/18/17, 48k miles and the tick is back. Currently at the dealer AGAIN waiting for an answer to confirm what I believe I already know. Also potentially of note, dealer changed the oil approx 3 weeks ago. Update coming soon... hopefully.
  7. Pulled the trigger on the muffler delete last week. I left the flapper and resonator in place. (Could always be removed later, but doubt I will). Sound was exactly what I was looking for, actually sounds like a 6.2L V8 now. I definitely would not want it any louder, but it is certainly not too loud for neighborhood travel if you keep it below about 2k rpm. However, a hard acceleration would likely wake the neighbors. Inside the cab is very comfortable with only minimal increased volume, the noise cancellation of these trucks is amazing. After putting ~200 miles on the new set up at various speeds I'm comfortable saying absolutely no drone in V4 or V8. And to my surprise, the helicopter V4 noise is gone. As far as performance, I don't feel much has changed. Haven't done a full throttle acceleration from a stop or slow rolling to say for sure about lower end, but upper rpms feel about the same. MPGs virtually unchanged during my approximately 50/50 city/hwy drive. Overall I am very happy and do not plan on changing anything.
  8. Looking for a 6.2 exhaust tip only. Anyone have one laying around? For a 2014 Silverado, 6.2L only. Thanks.
  9. Thanks Ctay, And for you and others that have simply just deleted the muffler, did you notice any change in performance? Good, bad, or the same? Also, does anyone see any potential problem with this muffler delete set-up in the long term?
  10. Now that you've had this set-up for about a year, what are you thoughts? Still like it? Any problems? Is there any reason you chose to clamp the flapper open?
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