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speed

  1. i was going how fast?

    Engine Tunes/Mods
    yestterday morning on my way to chicago i was merging on to the freeway and was trying to accelerate up to 75 mph. I was going pretty fast and looked at my speedometer and it said 45,so i gave it some more gas for a little while, but it wasnt moving. there wasn't any other traffic so i couldnt...
  2. Vibration, internal noise when braking.

    Brakes
    Ok, I have a wonderful 2002 Chevy Trailblazer 4WD. Recently, I was braking and I heard this odd buzz/vibration noise when I hit 20MPH and lower, and its only within a certain breaking preassure. If I break softer than normal: no sound. If I break hard: no sound. But break normally...
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