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Old 09-30-2021, 12:22 PM   #9
c5jako
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Drives: 2017 Camaro SS 1LE; 1999 C5 Racecar
Join Date: Aug 2020
Location: Massachusetts
Posts: 23
For anyone watching this, I finally got the car to the dealer today to have it checked out. After dealing with it for a year, I can't handle it anymore. Come to find out that any reprogramming or PCM work may not be covered by the powertrain warranty (isn't the word Powertrain in PCM?). I just hope the tech that takes it for a spin is able to feel the issue, it's so inconsistent. One way I found to always get some weirdness is to start at 2K RPM and slowly roll on the throttle - the hesitation and surge is definitely noticeable. I could deal with it if that was the only problem, it's the slight off-throttle buck and blip that drives me crazy. My cammed and tuned LS3 is velvet smooth compared to this engine.
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