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Old 12-08-2012, 07:42 PM
JimLev JimLev is offline
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Location: Sundance Mesa, NM
Join Date: Dec 2003
Posts: 4,319
Mein Auto: 540/6, '16 Highlander XLE
Originally Posted by BlackbirdPilot View Post
Developed an oil leak. Leaving a drop of oil when parked. Checked valve covers, they look "sweaty" but not wet or drippy (yet). I see residue down in front of the engine, but not sure where it might actually leaking from.

What is most common area to look first and what should I expense/labor expected for the common leaks? Will be putting up and pulling lower covers next week, but just wanted some direction in what to check first.
If your sure it's not coming from the valve covers look at the seals that go around the vanos solenoids on the front of the engine. The drivers side is pretty easy to see, the pass side will require you to remove the intake tube to get a good look at it. They cost about $12 each.
The other front leak point is the front main seal, it's behind the harmonic balancer (crank pulley assy).
The 3 piece timing cover gaskets could be leaking but the ones I mentioned above are more common.

2000 540/6 Slightly tweeked...everywhere

Last edited by JimLev; 12-08-2012 at 07:45 PM.
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