Believe it or not I have had a vehicle come into the shop where they’ve had new brake pads installed. Seems to make a scraping sound while braking. Turned out one of the brake pads was installed backward, with the metal backing installed towards the rotor. Actually have seen it more than a few times now over the years.
First thing would be to find out when this problem started. Did it start after doing a regular brake job that was done because of worn out brake pads? Or was it doing this before initially replacing any parts?
Also by scrubbing, are you talking about a scraping noise? Perhaps a sounds of something rubbing while the brakes are applied.
It’s more like a thumping noise when brakes are applied but I don’t wanna let it go i was going to get everything fixed it just can’t keep putting money into this car it’s not leading me anywhere but stuck at phase one all over again .
It’s probably something simple such as a worn out bushing. There was another member with a similar issue a few months ago that happened to be bad bushing in the rear beam axle. I myself have had to replace the front lower control arm bushings because they’re worn out. They become dry rotted and separate as they age. Things like out of balance tires or warped brake rotors can exacerbate the problem. I have had warped rotors on my Cobalt as well and that caused a thumping noise.
I bought my Cobalt extremely cheap because the owner thought it was going to be costly to fix some things on the car. Turns out it was very inexpensive. One of the best cars I’ve bought over the years so far. You would make a mechanic very happy if you sold to car to them.