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Groaning?? Brakes

2359 Views 10 Replies 5 Participants Last post by  Spyke
Hey all have a problem here. I had a shop do the front and rear brakes for me about a month and a half ago. They Resurfaced the rotors, and put new pads on, up until last week they were great, but now, after coming to a complete stop, or even when stopping as I apply pressure I can hear a groaning sound coming from the fronts, imagine a squeeky shock on an old vehicle or something and that is what it sounds like. No it is not a screeching sound like the pads, or anything. My guess is that the pistons in the calipers may need to be greased up and this will solve the problem. The brakes work perfect, smooth, and do not heat up badly at all. They were broken in properly etc. Like I said its just a groaning sound as I am applying pressure to the brake pedal. Any Ideas? Does my theory sound correct? I am going to take it in to Cadillac this week as I am still under warranty but they shouldnt make a big deal that I had the brakes done at another shop right?
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In the older CTSs we had the problem of the lower control arm bushing wearing. (there are two on the front wheel, it's the rear one that goes bad) As you make the stop you hear and feel the creeking. You can remove the wheel and inspect the bushing and probaly see how it is moving and causing the creeking sound. I though they fixed the problem in the later year CTS, but maybe not. There is a servive note on it as well.
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