Where is my Motor leaking from

[Tj72455]

I have an 03 Silverado 1500 with 4.8 vortec and right above where oil filter mounts I have oil leaking around 2 “plugs”? Needing more info on them and what to do to stop the leak! Thanks pic attached 

[sefiroxx]

Picture is a little odd. . But I believe that is where the optional oil cooler pipes would attach. There is a gasket located there to seal the plate that covers the two holes.

[txab]

^^^^^^ This and make sure oil is not traveling down from above, oil sensor.

[Tj72455]

Thanks for the Info! Guess time for a oil change and to fix them gaskets. What’s the oil sensor look like? I’m no mechanic by any means lol just know the basics 

[Tj72455]

Sorry about the bad pic was laying in my back and ima. Big guy not much wiggle room lol

[CamGTP]

The left circle should be the block heater plug, as your truck doesn't have one. It just looks wet around that. The right circle is hard to tell.

 

Honestly I'd do an oil change and then clean the piss out of the bottom side of the engine. It is so much easier to tell where the leak is really coming from when everything is clean. Do that and go hot rod the truck for a bit or just do your normal day to day driving for a few days and check on it when you get home. If you see it seeping, then you'll know where to start.

[carnau]

On 3/17/2019 at 12:52 PM, Tj72455 said:

I have an 03 Silverado 1500 with 4.8 vortec and right above where oil filter mounts I have oil leaking around 2 “plugs”? Needing more info on them and what to do to stop the leak! Thanks pic attached 

 

Like the users above said. The oil cooler bypass plate gasket looks like it is leaking. I would replace the oil pan gasket and the oil cooler bypass plate gasket at the same time. Very easy to do and there are 1000 videos of it on Youtube.

 

Oil Pan Gasket - https://amzn.to/2Y52dO0

Oil Cooler Gasket - https://amzn.to/2OgR3kM

[Tj72455]

Ok thanks guys! Will do