Hello.
2003 Chevy suburban 5.3 area 480,000 miles.

Been chasing an oil pressure problem for sometime. Finally got around to changing the oil pan, oil pan gasket, oil pump, sending tube, and the camshaft thrust plate gasket. Good news is that fixed the oil pressure problem and very happy about. I do notice some oil dripping down – not heavily — from the bolt that connects the starter, which is on the passenger side of the transmission toward the top, the oil pan seal is definitely not leaking. This is where I need some expertise.


Oil pressure sensor was replaced a couple years ago so I don’t think that would be leaking but I have not checked that yet. I did clean off the valve cover gaskets and will drive that tomorrow to see if that’s where it’s coming from.

I did see another sensor up above the starter – maybe the camshaft or crankshaft sensor? Could that be leaking?


I don’t know much about what the rear main seal would look like, but it feels like this oil is coming from above the bell housing.

Any insights appreciated!

Randy