Recent content by TJnoob

Finally took a look. The brake booster pump is definitely where the noise is coming from. It cycles only while the engine is running. When the car starts up it pumps For about 30 seconds, I assume to create pressure in the lines, but then cycles every 2 seconds. Is this normal or does it...

The sound is constant. I think I’m going to name the truck Darth. I looked up brake booster issues but read that those are typically followed with pump cycling noise which I don’t hear. It seems to drive normally. Brakes fine although I have to anticipate that the pedal goes in one or 2 inches...

So, the sound isn’t happening when I press the brake pedal. It’s actually a constant repeating sound that’s obvious when I’m cruising around with the radio off. It sounds like the truck is breathing. It was just odd that I can feel it in the brake pedal while I’m at a stop.

Hey everyone, I just purchased a 2008 LX 570 and noticed there is a cyclical hissing sound. It’s sounds a bit like Darth Vader. I can also feel it in the brake pedal. Braking seems normal, although the pedal depresses an inch before the brakes actually start to engage. Any help is appreciated to...