GMC Sierra owners have reported 2 problems related to brake drum wheel cylinder (under the service brakes category). The most recently reported issues are listed below.
When applying brakes, they vibrate/ braking distance is extended. Dealer has turned, and then replaced front rotors every 5000 miles. Also, rear wheel cylinders were replaced due to fluid leak.
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all problems of the 1996 GMC Sierra
🔎.
Both rear wheel brake cylinders leaking. Nlm.
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all problems of the 1997 GMC Sierra
🔎.