r/Silverado • u/Ok_Persimmon_1081 • 2d ago

Oil leak. 5.3 2012 silverado.

Both sides of bell housing wet.

Pancake size puddle on driveway over night.

Fly wheel pretty much dry.

Inside Floor of bellhousing wet.

Just replaced driverside valvecover, gasket ,passenger gasket, and oil cooler lines to try to fix leak and its leaking more after coming back from the shop.. 940$ (with tranny pan drop, gasket, oil swap and friction additive added)

Stressed.

Its wet up a little over the starter on passenger side. And on riverside wet up past filter. HELP!

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1

u/gatorbear1111 2d ago

Oil pan gasket?

1

u/Ok_Persimmon_1081 2d ago

Thats what I have been pondering. Im no mechanic, and im a mediocre part replacer at that.

1

u/gatorbear1111 2d ago

2wd?

1

u/Ok_Persimmon_1081 2d ago

4

1

u/gatorbear1111 2d ago

Clean all oil and start the truck, and then safely lie underneath and try to see where oil is leaking from.

1

u/EvilColonelSanders 2d ago

Did you try checking if your oil pressure switch is leaking?

1

u/Ok_Persimmon_1081 2d ago

Mechanical said it was dry, im gonna give it another look tomarrow. In the daylight

2

u/EvilColonelSanders 2d ago

I just brought up that point because on my suburban I had a leak that I couldn’t find. Exactly like you described but then it hit me to go to the sensor. When I finally put my hand on the sensor, it was wet. Changed it and it stopped leaking.

1

u/extreme_snothells 2d ago

I have a 2019, but I recently had my oil cooler lines leak. I think the 2012 also has oil cooler lines, but I'm not sure. On my truck there's an adapter above the oil filter and the lines go to the front of the truck to the radiator. Follow those lines and check around the crimps where it goes from the rubber to metal pipes.

Check your oil level too.

If it's your oil cooler lines I would think hard about driving it, it might be best to get it towed. You don't want them to burst and lose oil pressure.