It might not cure it, but I would try bedding the brakes before I got too worried about the noise.
The other potential easy thing to try is to make sure the calipers are clean and pistons are moving freely; also put some grease on the back of the pads (between the pad and the pistons) . . . hopefully the shop did this when they changed the pads.
If a local shop installed the pads, it shouldn't make any noise. It sounds like a warranty item and if you do anything yourself, you could void any possible warranty repairs.
I think "anti squeak" is a fancy name for grease, sounds like that should be all set.
If the old pads had shims on them, they should have been re-used with the new pads; not sure why the new pads would need them if the old ones didn't.
I am not exactly sure what "threw a heat cycle" means, but it does not sound like a complete bedding procedure. If it was my car, I would complete the whole procedure per the instructions at the link that I posted, before going on to more difficult and expensive things. It will take about a half hour or so, but you do need a stretch of road with very little traffic where you can speed up and slow down a lot, like it says in the instructions in the link.
Try Backing up and applying the E-Brake a few times, it sounds almost like the noise mine made when I put brakes on the rear, the adjusters might not be all the way out on the parking brake.
So, unless I misread the post, you mentioned new pads but didn’t say anything about the rotors. I’m assuming they were resurfaced when the pads were replaced. If not, that’s a problem, and a strong possibility for groaning noise.
If this was all done as it should have been, I would return the car to the shop and have them listen to the noise as you demonstrate. Non-bedded breaks shouldn’t be super noisy, but it’s not unusual for some slight groaning. Also, If chemicals got on the surfaces while installing, creeks and groans do happen sometimes.
If you allow the car to creep with a partially applied break. For instance... setting at a red light on a decline, and slightly releasing the break peddle to allow the car to creep forward a little. A little groaning there means nothing much, and could be considered normal. Demonstrate the noise to the shop’s technician, and get his take on it. A quick inspection won’t cost them more than a few minutes to confirm a problem, or put your mind at ease...
Question,Are the brakes HOT after a normal drive,is one brake hotter than the rest.That will tell you if one or all of them are dragging,or not releasing as they should.Just a thought.
5.0 Coyote.
Are you using Wilwood’s street pads? Did you contact them.
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