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    1999 Chevy 1500 Suburban 1500 GMT400 surge/hesitation at cruising speed

    Thanks guys! 190k on the drive train. About 3 months ago I did all the maintenance mentioned other than checking the timing and PCV.
  2. X

    1999 Chevy 1500 Suburban 1500 GMT400 surge/hesitation at cruising speed

    Hi Guys, New member here with a 1999 Suburban 1500 4x4 with the 5.7 and 4L60E that I'll be building for hunting, fishing, camping use. At highway cruising speeds I'm getting a slight hesitation or surge feeling. Almost like hitting little bumps, but I can tell it's the power hesitating...
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