es300lang

I Have a 97 es 300 (120K) with an ongoing but intermittent rattle coming from both sides of the front end (when the noise is happening it sounds like a can full of rocks inside fender wells (from the cabin)...or like something is just loose up front. When I took it back to the dealer ...they found no problem and diagnosed as low tire pressure ...but fter replcacing the rubber on all 4 corners it is as bad as ever. I have jacked the car up on stands and taken the wheels of and everything seeems prety tight with the shocks and suspension...yet the problem persists. Any ideas?

Thanks for the help...I found a lot of addl info in the forum (once I had the right key words). I will be taking the idle air control valve apart today to see what's up. :)

I am a new member, but have owned my 97 es300 for over a year. Over the past few months the car has become increasingly hard to re-start once it has reached normal operating temperature. I usually have to really mash on the gas and rev it up quickly after it catches, or it stalls out within seconds. Other than that on cold starts and general driving it acts flawlessly, and in general drives better than any car I've owned, (especially for a car with 110K miles). Any ideas?