What would cause a shudder under load
This is on my stock tranny (4L60E) in an 02 envoy, I was taking my tandem axle 14' trailer (about 1300 lbs) for it's annual inspection and I felt a shudder under load. I'm almost positive the TC was l...
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I would say the TCC is slipping. While the problem is happening lightly ride the brake pedal, not to apply the brakes jut enough so the TCC turns off you should see the RPMs go up slightly. If the problem goes away you have a TCC issue.
