kdick91

iTrader: (1)

Well I just finished my intake manifold swap and I busted my oil pressure sending unit and replaced it. But as I had no socket to fit it, I screwed it in as tight as I could with my hand.

I used all new gaskets on my intake manifold but I noticed today I have a FEROCIOUS oil leak dripping where the engine meets the transmission. I reached back and rubbed my finger all over the new oil pressure sending unit and found NO oil. Just dirt. Are there ANY ideas you guys have that I could check for?! I'm extremely scared to drive. But I keep checking my dipstick and my oil level is actually pretty good. Like nothing abnormal there.

Also, my PCV valve dry-rotted so I had to replace with a straight piece of rubber hose.

When I put on my LS6 intake, I sanded down the entire bottom of the manifold so I didn't have to buy new coolant lines.

If you need to know anything else PLEASE ask!

The quicker the better!

Help is greatly appreciated.

kdick91

iTrader: (1)

OK, I wiped up all the oil I could and went for a drive. It's allll back and dripping strong.

It is only leaking from the driver side down to the middle of where the transmission meets the engine.

Come on guys!

Any input?

shaun

i would say that its leaking from the oil sending unit there is no oil going in to the intake so thats the only thing it could be.

Pocket

iTrader: (22)

Exactly where your oil pressure sender is

Oil pressure is normally 50+ for LSx engines, finger tight wont cut it

Use channel locks if you have to

kdick91

iTrader: (1)

Oil pressure is DEAD on though...

Like Almost 60 when she is cold.

50 when cruising.

And will jump when I romp on it.

02 BLK WS6

iTrader: (11)

It's the sending unit. Pull the intake again and use a little teflon tape on the threads when you reinstall the sending unit.

kdick91

iTrader: (1)

When I got the sending unit, it had some white junk on it. Looked like liquid teflon tape. Or white out.

But I just reached back there and rubbed my finger ALL over the bottom of the sending unit and all I get is dirt.

BUT! The block is still insanely hot (yeah I burn myself each time I check) so could the oil evaporate before I have time to check?

The 'dirt' I find is very fine, like the kind I found in both my manifolds. (Both were used)

Like the little that comes from the PCV valve!

kdick91

iTrader: (1)

OK another update.

I went out and found out it only leaks when running.

He is a picture of the newspaper I had under it.

The 'fresh' looking oil is what came out from running about 7 minutes with a little bit of revving.



But the total was over a 2 hour period...

Really worried

OUTLAWZ RACING

iTrader: (9)

Orileys has the gm socket for the pressure sending unit it cos t 12 bucks and you dont have to remove the intake to fit it on.

jrpimp00

iTrader: (17)

If nothing else was changed, its got to be the sending unit, id top it off, let it run a few minutes until it started to drip, then remove the intake manifold and check, shouldnt take that long.

^^ Or you can do that, a lot quicker

kdick91

iTrader: (1)

I'm going to get it on there good tomorrow.

Hypothetically that doesn't fix it, what can cause a leak THAT severe?!

loyolacub68

iTrader: (16)

If you did not do anything else then it has to be the sending unit. You must be missing something. Like someone said earlier, 50-60 psi for the oil system, hand tight won't cut it. I'd pull the intake and tighten that thing down.

kdick91

iTrader: (1)

I got back behind the manifold and BARELY got the socket on without breaking anything.

Lol.

I tightened it ALOT but the leaking has stopped to my knowledge.

But if it continues I will be right back on here!

Thanks for all the help everyone!

shaun

hope u fixed it man good luck!