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Search results

  1. timw128

    4L60E Electrical Issues

    Hello- 1994 GMC C1500 2WD 5.7 showing DTC 66, 67, 81, 82. Appears to be no power to trans, started about a week ago intermittently, and now permanently. Find it extremely unlikely all 4 components tied to the above codes would fail at once. Suspect Ignition Switch (common anomaly) or ground...
  2. timw128

    Hello!

    Hi- New to Truck Stop. Have a 1994 GMC C1500 2WD 5.7 whose 4L60E is acting up. Fairly sure it's a grounding issue, or no power to trans due to ignition switch (common anomaly). DTC 66, 67, 81, 82 all at once. Extremely hard to believe all solenoids would fail at same time. Need ground locations...
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