ksmith
Member
- Joined
- December 31, 2013
- Messages
- 10
- Reaction score
- 0
- City, State
- NC
- Year, Model & Trim Level
- 2006 Ford Explorer
Thought I'd come to you guys for some insight and see if anyones had a leak like this. Wife's explorer started leaking oil on the driveway. Upon further inspection I could see that it was coming from up high on the back of the motor and leaking down the bell housing and out the bottom. So I go to the front of the motor and remove a bunch of leaves from top of engine under intake and the oil is puddled all across the top of the block between the heads. Of course I can't get in there to clean it up. So I remove the intake manifold and try to clean it all up. So I highly doubt that its a head gasket leaking oil like this up high because I don't think the oil flowing back down the heads is under any pressure. Oil looks clean, coolant looks clean, and truck runs fine. I checked the valve covers real good and there's no sign of them leaking down. So I'm left with two options I think. The oil pump drive assembly gear slides down in from the top of the block towards the back. There is an o-ring on this and I believe this part is under pressure and could be the source of the leak. The only other thing up there is a knock sensor right in the middle. I don't believe it's under pressure but I could be wrong. So these are the two things I'm thinking. Which one would you guys bet on? Should I replace both and just be sure? The oil pump gear has an easy o-ring to replace so I will do this reguardless. But I'm not sure about the knock sensor. Thanks for the help guys. I tried researching this for several days and just saw people with valve cover leaks. So I thought I'd post and share my problem for anyone else trying to figure out an oil leak up high like this.