My 2010 Gen Coupe was having brake issues and I took it to Pep Boys for a diagnostic. They determined that it was the master cylinder.
I ordered the same one from Rock Auto, we replaced it and did all the bleeding before and after installing the Master Cylinder and everything felt fine.
However, if I start the car without putting my foot on the brake pedal initially, when I press the brake pedal to put car in gear (AT) and every time the pedal is pressed, I hear like an electric pump, just like the one you hear when you first start the car; which I'm assuming it is the gas pump, but this sound comes one every time I press the brake pedal and sometimes when I release it.
Now, if I start the car with my foot on the break, then that electric pump will not come on.
Brake fluid is fresh, brake pads are still good and there are not leaks anywhere that I can tell.
I am suspecting that air is still in the lines or abs system and that the pump is coming on when I press the brake pedal to compensate pressure that is lost from the space air in producing in the system.
I'm not a mechanic, I don't know if this is even possible. What causes that whatever electric pump to come on only when I press or release the brake pedal and only when I start the car without pressing the brake???
I was told that the abs had to be bled also but with the scanner; which I took to a shop and they claim they did.
What am I missing?
2010 GC 5sp AT
- HKS Catback Dual Dual Exhaust
- Test pipe
- AEM Cold Air Intake
- Mishimoto Intercooler
- M&S Grill
- HID Projectors
- Racing Lubricants
- SFR Reflash 1.5
- Tinted windows
- That little special something...
What comes next to reach status of
- Wing Spoiler
- Rear deffuser
- Not sure what else...