whooodat

iTrader: (4)

I was doing an oil change about two weeks ago and notice this to the left of the oil filter, a plate with two bolts, seems like it leaked in the past. Does anyone know what this is?

LeX2K

Leaking coolant for sure. Looks like there is no gasket so drain coolant, remove, clean, seal with RTV.

http://www.japan-parts.eu/lexus/us/1...&pa=1149250010

whooodat

iTrader: (4)

That's what I was thinking, guess I'll have to go the dealer this weekend and see what that part is (and what is it?). Thanks Lexus2000 appreicate the response.

nsghtbrwry

It's just a block-off plate, got a groove to lay a nice bead of coolant-resistant/water pump RTV in. I think the torque is 7 ft-lbs.

Toyota has a super-secret coolant FIPG for that and the valley cover plate, but it's about $115 a tube. Last time I did those was on a '99 ES with 243k, found a new-old stock tube on eBay for $20. Hey, it still hasn't leaked, a year later.

LeX2K

As stated no need to replace the part, clean it and seal with RTV. I posted the diagram to show there is no gasket.