My car is an '09, base V6 with just 13k on the clock. About a month ago I noticed a rumbling noise when I hit the brakes while backing out of my driveway. This has only happened when the car has sat overnight, and only after being washed or when it was raining pretty hard. It has never happened going forward, and never after driving the car for any distance. It happened again today, only today there was no water present. No rain, and I didn't wash the car yesterday or today either, so I'm afraid what ever is causing the noise is getting worse. Has anyone else experienced anything like this, or have a clue what it might be? At 1st, I thought it was just water on the rotors causing a little chatter between the pads and rotor surface, but as I said, today the rotors were dry and I got the rumbling backing out of my driveway anyway.
I do intend to take it to the dealer for a warranty check, but I really hate going there with a "special circumstance" issue, one that only occurs under certain conditions. I waste my day off waiting around the service dept and end up going home having nothing done because we couldn't duplicate the problem at the dealership. That's exactly what happened when I took it in for an engine idle vibration that goes away when the A/C is turned off. This only happens when the car is fully warmed up and driven for at least a few minutes, then at a stop and in gear I can feel a subtle vibration, turn the A/C off and the idle is so smooth you can't even tell the engine is running. As sublte as the vibration is, it is very noticable compared to how smooth it is with the A/C off. Of course I could not duplicate that in the service dept and ended up leaving with the tech telling me "some harmonics are to be expected". Harmonics my ass, I know a vibration when I feel it.
But I digress , this post is about the brake noise. Hopefully someone can give me a clue of what to look for so maybe I can see something wrong myself that I can point out to the tech at the dealership instead of just wondering if they'll bother doing anything and send me home with out making any repairs or adjustments (again).
I do intend to take it to the dealer for a warranty check, but I really hate going there with a "special circumstance" issue, one that only occurs under certain conditions. I waste my day off waiting around the service dept and end up going home having nothing done because we couldn't duplicate the problem at the dealership. That's exactly what happened when I took it in for an engine idle vibration that goes away when the A/C is turned off. This only happens when the car is fully warmed up and driven for at least a few minutes, then at a stop and in gear I can feel a subtle vibration, turn the A/C off and the idle is so smooth you can't even tell the engine is running. As sublte as the vibration is, it is very noticable compared to how smooth it is with the A/C off. Of course I could not duplicate that in the service dept and ended up leaving with the tech telling me "some harmonics are to be expected". Harmonics my ass, I know a vibration when I feel it.
But I digress , this post is about the brake noise. Hopefully someone can give me a clue of what to look for so maybe I can see something wrong myself that I can point out to the tech at the dealership instead of just wondering if they'll bother doing anything and send me home with out making any repairs or adjustments (again).