Hello all. I have a 2014 Camry 2.5l LE Car with 130,000 miles. I have driven this car with mechanics to find out what this rattling is and it either doesn’t show or it’s faint while they are with me, I’ll explain.
The vehicle only makes this rattle after warming up and being driven for at least 15-20 mins and it’s only while in drive and it’s makes a lower end rattle sound in the passenger side when I do slower accelerations. It will not rattle if I try to accelerate faster and it seems to do it after the car has reached its next gear ( in between automatic shifting a certain speeds). I noticed if I find the perfect resting point for my foot while on the freeway and I keep it at a consistent speed without trying to speed up but also not releasing the gas that I can get it to rattle for sometime, otherwise it’s temporary. It doesn’t make the sound while in idle, if I press the peddle in idle there is no noise either and it seems to be much more emphasized if it’s a hot summer day after the car heats up more. I was told poss timing chain tensioner but no one is certain as of yet. Thanks for your time

 

Rattle inside the car or engine compartment or ?

 

The noise is from under the hood on the passenger side outside of the car. Sounds like it could be on the lower to mid side of engine

 

The engine may have plastic valve inside the engines intake manifold. If so it can break and start to rattle. Check this area.

 

did you figure it out? I have the same problem with the same car

 

I had same issue. For me it was the water pump. It wasn’t leaking any coolant prior to going out. The impeller was hitting the inside of the water pump housing causing the rattling sound. Eventually the housing cracked causing the pulley to break off and ate the belt.

 

I usually trade when my tires need attention