i have a 2010 Toyota Highlander (wife’s). 3.5L fwd, 155K miles, beautiful vehicle, gets us and kids anywhere and everywhere we want to go. Pleasure to drive. Changed oil last weekend, a week later, wife complains that vehicle is making terrible sound everytime she hits the accelerator, and that oil light is on. She stops immediately and tow it home.
I look at it, realize the oil light is correct, no oil on dipstick, and almost no oil in pan. I started to get upset with myself for probably misaligning the rubber gaskets on the oil filter assembly. oil was all over that general area of the oil filter. pull filter assembly off and all gaskets are in place and filter looks correctly installed. I remove and reinstall just to make sure. Where is all of this oil draining from?
I have another person start up the car, and it is shooting out of the front lip of the oil pan. So the oilpan gasket area is where the oil is escaping. Doesn’t look like a leak due to hitting something in the road as this place is really close to the oil filter, but anything is possible.
I have ordered the gasket and RTV. Removed all of the bolts/screws. Is a screwdriver to wedge into the old gastket/grey RTV material the correct protocol to pull off the pan? Or a putty knife better? light taps on the side/edges of pan have not been effective.
Second question is, can i assume this is just an old gasket blowout due to age? or did something pressurize the oil pan so much that i am only solving for a result (oil blowout) and not addressing the initial cause? What could those other causes be?
Exterior of oil pan looks nice and new/no dents, but that leak was impressive. (after filling with 5qts and running the engine for 15 seconds) Thanks in advance.