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Hey guys, my rx350 has this weird slow leak (a few drops or less day) and I'm not sure where is the source for that leak and hoping if you guys can help me locating the source. The location of this leak is close to the back/rear of the car where the gas tank is, I smelled the light puddle on the floor and it's not gas and it's more like oil but for sure it's not the differential fluid because that area is dry. I noticed one of the bolts that hold the metal gas tank protector shield is a little wet. Logically one would think it's could be a leak from the tank but the smell and the liquid stain on the floor is nothing resemblance of a fuel leak. I ruled out differential fluid already, what else would be leaking in that area? Thanks in advance guys!
I just checked ..rear struts are dry no sign of leaking. Would it be seepage from the brake fluids lines?? I don't know the location of rear brake fluid lines
Not quite sure, but I would like to check rear differential oil level first, if pinion seal fails or overfilled it may leak out.
So what happens if you overfilled, the excess oil will leak til the right amount is inside? I cleaned the area dry and now I have a thin layer of oil around that area ( no visible oil drops though) I can confirm the new layer of oil is the oil from the differential, same smell and light yellow. Since the pinion seal was recently replaced and no visible leak ?? I only noticed a thin wet layer of oil around the around area, I guess when the thing spins at high speed.
06-14-19, 02:20 PM
Strange leak and don't know where's the source
