Finding the leak.

[rchadhaney]

I have a 1997 2-door Tahoe. I've wanted one of these for years and finally found what I thought to be a solid one.

I am now on the hunt for the oil leak.

Symptoms:

1. starter and the entire right side of the starter/bell housing is soaked in oil.
2. The weep hole for the transmission is clean.
3. the topside of the bell housing is soaked.
4. Valve covers look to be 95% clean.
5. When sitting overnight just a few drops, however, leaving at an idle in one place I'll have more than a few drops, I'll pull up to the size width of a tennis ball.

I'm leaning toward:

1. Lower Intake manifold rear leak. I've heard this is common.
2. The Oil pressure sending unit.

Before I order parts and before I start taking things apart I'm looking for feedback on more troubleshooting.

I'm really not wanting to take the top-end apart but will if needed.

[geezer#99]

This is the easist way I’ve found to find leaks.
Some dye and a black light.

https://tracerproducts.com/finding-engine-oil-leaks/

[b454rat]

Get some degreaser, soak the crap out of the engine bay/engine, pressure wash off. After a couple days of driving, should be able to see where the leak is coming from. But it looks like either the intake seal or sending unit.....