We have a 2008 Touring with 109K miles. It had the timing belt, valve cover gaskets, etc all changed just about a year ago. Last month, the spool valve was leaking and alternator went. When they changed the front spool valve, they said the rear was fine. We now have another leak that started a few weeks after the spool valve and alternator job. There's a thin layer of oil on the entire pan, few of the pan's bolts have oil too. I cleaned everything and then tried to see where it is coming from. At first I was thinking the crank sensor was leaking through the center and going up the rubber wire housing and out. but I also see oil all the way by the belts. It could travel along the top of the pan line too. I cannot see any oil from above, all below. I did an oil change a few weeks before the spool/alternator job, could I have screwed up and put in too much oil causing the van's demise? It does not seem to be leaking a ton, but enough to stress you out. I might try the spray powder method I saw to help identify the leak. I did the UV die, but it really seems to not give a clear cause, just die everywhere.
The photo is where the crank sensor it without its shield on. The circled part seems to get the most oil pooling. The sensor is the part with the rubber hose coming off it.
Any clues or advice? Thanks