I have a vacume leak on a 98 blazer and now the 4 wheel drive doesn't engage even though I can hear...
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I have a vacume leak on a 98 blazer and now the 4 wheel drive doesn't engage even though I can hear the click of the module, and the lights are workin on the dash.I believe it has something to do with the vacume leak , and need a diagram for the vacume on this vehicle