Grinding noise

When does this happen? If it seems coincident with the brake pedal being pushed, it's probably normal. There's a small pump that runs (even when the car is off) that repressurizes a portion of the braking system to ensure reliable stopping performance.

 

I've been getting an odd noise recently. I'm quite familiar with the rapid-fire clicking off the brake pump (which is what I'd guess the OP's noise to be), but recently, while stopped with the brake depressed I've been hearing little grinding/squooshing noises with maybe a click, at 1-2 second intervals. The source is hard to pin down, but doesn't seem to necessarily be coming from the front - I'd guess it sounded a bit like it could be the brakes applying and releasing themselves. Or just some sort of pressure adjustments happening in the system. But not the usual ratcheting brake pump sound.

Any ideas? :huh:

 

<div class='quotetop'>QUOTE(Rxmxsh @ Mar 15 2007, 03:16 PM) [snapback]406205[/snapback]</div>

Does it happen at start up and does it happen in short bursts? Is it a friction type whirring noise? Could it be coming from behind your display? If all rings true, I'm picking up my car tonight for this same noise. It was my brake actuator. If this is what's going on w/ your car, they'll bleed your brakes to see if this fixes the problem. If it doesn't, they'll order the part under your warranty and repair the vehicle. It's an all day job. Ask for a rental. They provided me w/ one, no problem. Hope this helps.

 

Sounds a bit like mine. Tends to be not long after start-up, and it does it a number of times in a sequence. Could be a friction whirring noise, yes. But it's much quieter than the normal clicky brake pump repressurisation (which only happens once every now and again) and I can't really locate it. Wouldn't notice it unless the radio was off.

 

You know I just started noticing this "ratcheting" sound also, but it seems to come only when the car is swithing from battery only to gas+battery,


ity sounds like a chrysler when it comes to a stop. Hope fully some one on here understands that, since every chrysler I hear pull up to stop signs makes a weird clicking sound.

 

<div class='quotetop'>QUOTE(KMO @ Mar 15 2007, 06:59 PM) [snapback]406365[/snapback]</div>

My noise isn't quite. It's a very obvious noise. If you hear yours when placing your ear to the display, and it only happens when the car is warming up, get it in the shop to have it checked. I just posted in my "whirring noise" thread that I picked up my car last night from getting it repaired and it did it again this morning! I'm bringing it back in next week.

<div class='quotetop'>QUOTE(Rxmxsh @ Mar 15 2007, 07:01 PM) [snapback]406371[/snapback]</div>

I've explained my noise the best I'm able via written description. My noise is absolutely not normal. My car is defective. If you're unsure, it's always best to bring the car in, just to be sure.