I have a 2001 GS430 and yesterday I found a plastic piece of my undercarriage sitting at the bottom of my engine bay. The piece is about 6-7 inches in length and almost the width of the car but I can't seem to figure out where it goes. Does anyone have pictures of the undercarriage or even better a diagram of all the plastic pieces? Thanks fellas!

 

Can you post a pic of the part that you found?

 

Sure no problem

 

That is the cover for the radiator support opening. I got my car back from a shop without this piece off, too. I've been meaning to figure out if I have all the clips needed to put this back on.

 

Thanks Neo. That piece goes on the bottom of the radiator in side the front bumper right?

 

I thought maybe that's the piece you were talking about. I need to reinstall mine as well with the full underpan also when I put my bumper back on later this week. I may take some pics when I do it if it will help some other guys out.

 

Whoever did the oil change or worked under the car did not put it back with the underpan (plastic piece that covers most the front bottom). It is pretty much screw in with the underpan.