Oil dissapearing... figure this one out
Thread Starter
Supreme Member



Joined: Mar 2001
Posts: 3,306
Likes: 77
From: Fl
Car: 5.3L turbo 2800lbs RWD
Engine: Prefer 3L Iron & 5.3L Aluminum
Transmission: 4l80e
Axle/Gears: 3.512
Oil dissapearing... figure this one out
So, there I am, at work at Best Buy. I work for 11 hours, then get off and what do I see? Oil. Oil puddles, about 5 of them, in different spots below my engine. definetelly oil. they are spread out too, 5 different puddles, 5 different places, all in about the same quantity. not a TON of oil, but enough to ruin that spot on a driveway. I check my dipstick, 2 quarts low!
I put my spare quarts in and drive it home. park it. check underneath car. No oil
now? hmm. I start it up. Cant find any oil leaks anymore... I let it sit overnight.
Next morning, MORE OIL! about same amount, 5-6 different puddles, right below the engine.
I pull flexplate cover to check rear-main seal(s, 2-piece) Nope not coming from there. I check Oil pan gasket, perfectly clean. Oil pan is pretty, not a drop.
Its all over my driveshaft and rear end though!
I pull distributor and I find OIL OIL EVERYWHERE on the transmission Bellhousing! I check Oil sending unit...
NO oil coming from sending unit, its clean and doesnt leak. I check distributor hole
Nope its clean too! I check back of intake manifold
perfectly clean.
WHere did the oil come from? Why is it on my Tranny bellhousing? Why 5-6 different spots? if its on the top of the bellhousing how did it get all over my rear end?
I check my dipstick
2 quarts low again! I didnt leak out 2 quarts onto the ground in 1 day! Whats going on?
I put my spare quarts in and drive it home. park it. check underneath car. No oil
now? hmm. I start it up. Cant find any oil leaks anymore... I let it sit overnight. Next morning, MORE OIL! about same amount, 5-6 different puddles, right below the engine.
I pull flexplate cover to check rear-main seal(s, 2-piece) Nope not coming from there. I check Oil pan gasket, perfectly clean. Oil pan is pretty, not a drop.
Its all over my driveshaft and rear end though!
I pull distributor and I find OIL OIL EVERYWHERE on the transmission Bellhousing! I check Oil sending unit...
NO oil coming from sending unit, its clean and doesnt leak. I check distributor hole
Nope its clean too! I check back of intake manifold
perfectly clean. WHere did the oil come from? Why is it on my Tranny bellhousing? Why 5-6 different spots? if its on the top of the bellhousing how did it get all over my rear end?
I check my dipstick
2 quarts low again! I didnt leak out 2 quarts onto the ground in 1 day! Whats going on? Thread Starter
Supreme Member



Joined: Mar 2001
Posts: 3,306
Likes: 77
From: Fl
Car: 5.3L turbo 2800lbs RWD
Engine: Prefer 3L Iron & 5.3L Aluminum
Transmission: 4l80e
Axle/Gears: 3.512
Forget to mention Those are clean too. Went under car today and checked it out, could see oil coated the underside of the tranny pan and rear end again (since I cleaned it last time) I then changed the oil and removed flex-plate-shield once again to check more thoroughly. Nope, flexplate is as shiny as the day it went in. found oil all over the sides of the tranny though and wiring... in fact it got on my coil which promptly cought fire. This ones driving me nuts.
Question:
<b>
The space between the Intake Manifold and the Block, at the back by the distributor hole, I used PERMATEX to seal it shut (as usuall) but is it possible oil is sprying out from between the crack between the block and intake? Could that happen? </b>
It FEELS clean when I run my hand back there, but everything is always kinda coated back there so... Hmm Im wondering?
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