Ever since I got a brake job, my brake lights have come on, all 8 of them. Traction Control, ABS, Brake, etc. Every once in a while they will go off and be normal for a day or two then they will come back on. The service center that did the brake job said everything looks good, it must be a faulty brake actuator. The brakes work fine although on starting I have to remove my foor from the petal and then reapply it to move the transmission from park to drive. When on the highway doing 70 mph or so, when I take my foot off the accelerator I hear a pop coming from under the rear of the car mostly on the passenger side. In about 5 minutes, I’ll hear it again. It sounds like pressure is being built up than all of a sudden released with a pop.
An actuator replacement will cost $3500 and I rather not go through the expense if it is air in the brake line of a faulty sensor. Can you help?