Today I noticed that if i press on the brake hard, the car makes a strange whining noise. At first I thought the noise was my brakes squeaking, but I pressed the brakes in while I was idleing in neutral and the car makes the same sound. Also If I step on the brake hard, RPM's drop to about 6-700 until I let off the brake, I don't think thats normal either. Any ideas on what the noise might be? Fluid is fine by the way.
Whining noise when pressing the brakes hard
- Thread starter danny04GT
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the noise sounds like it would be the power steering pump
the 'hydro-boost' system uses the p/s pump to provide vacuum assist to the brake system. when you hit the brakes you lose all the vacuum so the p/s pump has to provide more
if you can hear it sitting in traffic with the a/c and radio on you probably have a problem. take it to ford if it's under warranty
the 'hydro-boost' system uses the p/s pump to provide vacuum assist to the brake system. when you hit the brakes you lose all the vacuum so the p/s pump has to provide more
if you can hear it sitting in traffic with the a/c and radio on you probably have a problem. take it to ford if it's under warranty
PlatinumDevil
Member
As does mine, i just dont press my brakes that hard, it feels kind of like your letting brake fluid out when you do it.
PlatinumDevil
Member
Did ya check your fluids? Maybe top them up... other than that *shrugs* unless a vacuum line came off somewhere, but ya mines fairly loud, but i dont think its much (if at all) louder than the power steering pump when you turn the wheel at a stop.
The fluids are fine. But I guess thats what the noise sounds like, an old steering pump. You ever ride in an old bucket and the steering pump makes a really loud whining sound when you make a tight turn. Now here is the trickey part, I'm at like 34,900 miles. My wife is planning on driving the car to San Diego on Monday. By the time she gets back, my warranty will be expired. What do you guys think, normal "Mustang" noise that just got a little louder, or is it something I need to take the car into the dealership for?
Pearl02
Member
Mine to. I don't think it's the power steering. I believe the noise is could be coming from the ABS system/pump. Just a guess. Pearl02.McTeague said:
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