Hi again... am bringing my 07 ES350 in for the 30k service next week and have two strange noises. Looking to see if anyone has had something simlar since these are intermittent and may be hard to find and fix.

Actually, this first one is easy. It's a clicking noise that appears to be in the roof to the right side of the moonroof. It is intermittent but stops when you simply push up on the ceiling. Anyone have anything like that?

The second is much more intermittent. The sound is similar to the noise when you pop open the trunk. It's in the back on both sides. It happens every single morning when I back out of my driveway when I get to the end, and turn the wheel, when the car starts to turn. It happens occasionally on a turn (same position with the wheels turned -- left or right) but also may happen (again on occasion) when going straight. I know that's not much to go on, but figure it's worth asking.

Thanks.
Brian

I'm right there with you, Brian...kind of a low 'whump' when I'm backing out of the driveway, (and no, I'm not backing over the neighbor's dog)...I thought it was just junk in the trunk, but maybe not...let us know what you find out, if anything.

-Ben

Having too much junk in the trunk is a big problem nowadays.

I have the "thump" in the trunk noise when the fuel tank is full, until it gets down to 3/4 tank. I think it has something to do with the float. I hear it when accelerating from stops.

The clicking sound in the roof is more than likely the tire pressure sensor,its directly above the rear reading leds. there was a recall on the mounting braket.i had the same problem. i just pulled the rear of the headliner down and pried the braket down a little. the noise went away.

Well... the Lexus folks said that they dropped the roof panel and (I guess) added some padding. It helped the noise but did not totally stop it.

The good news is that the mysterious thud in the back is gone. They claim that they didn't find/do anything, but it is gone (hopefully forever). Perhaps as part of the 30k service, something was tightened or moved... I don't know, but I'm not complaining!

Brian

The thumping noise could be coming from the gas tank. This car is known for making a thumping noise from that area when the tank is full or close to it. Once the level of fuel in the tank decreases the sound goes away. Check to see if the noise is there when full or near full with fuel and disappears when you have less in the tank.