BCM Posted September 8, 2006 Report Posted September 8, 2006 I put the car on the ramps today and attempted to locate the oil leak . Took a few pics to see if anyone could help. In the first 2 pics look closely and you can see a dop of oil about to fall to the ground. This first pic is by the oil drain plug, and yes it's tight. This next pic is by some shiny thing i dont know what it is.. A shot at the whole undercarriage. This is how much oil dripped to the ground about 5-10 minutes after driving it. More dripped after the pic I figured its probly comin from around the oil pan somewhere or the valve covers, but I didnt see any signs of leaking around the valve covers Quote
97loudcut Posted September 8, 2006 Report Posted September 8, 2006 ever thought of a drain plug gasket...its tight but if the gasket is shot.. oil filter tight? Quote
LukeZ34 Posted September 8, 2006 Report Posted September 8, 2006 Oil pan gasket? BTW, that big shiny thing is the bottom of the transmission. Quote
97loudcut Posted September 8, 2006 Report Posted September 8, 2006 how bad are 3100 oil pan gaskets to replace and what does it involve (price and time) Quote
5speedz34 Posted September 8, 2006 Report Posted September 8, 2006 how bad are 3100 oil pan gaskets to replace and what does it involve (price and time) Try not to hijack his thread. You probably have to pull the cradle to do it. Parts are probably like $20 for the gasket. Quote
BCM Posted September 8, 2006 Author Report Posted September 8, 2006 Oil pan gasket? BTW, that big shiny thing is the bottom of the transmission. Any idea how hard those are to replace? I guess it's not all THAT shiny since there's oil all over it Quote
Pontiac6KSTEAWD Posted September 8, 2006 Report Posted September 8, 2006 I dont think its the oil pan gasket. I do think its the rear valve cover gasket thou. There isnt enuf oil to be the oil pan gasket. Quote
PCGUY112887 Posted September 8, 2006 Report Posted September 8, 2006 What engine is this on? If it's 3x00 i'd take a look at the oil pump drive seal, see if it's leakin oil down the side of the tranny/block anywhere under the TB. Mine looks very similar to that and it's the pump drive seal that is leaking like mad. Quote
BCM Posted September 8, 2006 Author Report Posted September 8, 2006 What engine is this on? If it's 3x00 i'd take a look at the oil pump drive seal, see if it's leakin oil down the side of the tranny/block anywhere under the TB. Mine looks very similar to that and it's the pump drive seal that is leaking like mad. 3800 (L36) I'll take a look tomorrow when I get a chance Quote
PCGUY112887 Posted September 8, 2006 Report Posted September 8, 2006 Oh now I see your sig I only know of that being common on 3100/3400, dunno about 3800. Quote
digitaloutsider Posted September 8, 2006 Report Posted September 8, 2006 I dont think its the oil pan gasket. I do think its the rear valve cover gasket thou. There isnt enuf oil to be the oil pan gasket. My car is leaking from the pan gasket, and it's not leaking like a sieve or anything. Oil pan gaskets don't have to be spraying oil everywhere to be bad. Quote
1990lumina Posted September 8, 2006 Report Posted September 8, 2006 Does it stop leaking after a while?? Or will it continue to drip all night?? Or does it only leak when the motor is running/continues to leak a few minutes after shut down?? Quote
BIGBULS Posted September 9, 2006 Report Posted September 9, 2006 I would bet you money it's the oil pan gasket..................as for replacing it, don't.............it's FAR cheaper and easier to just add oil..........trust me If you don't believe me, go to a dealer and simply ask how many hours labor a trained tech gets payed to do it Just in case I'm wrong ( ), other things to look at are: 1) Power steering pump and/or hoses. 2) Drivers side axle seal and/or transmission sidecover gasket. 3) Trans pan gasket. But. I would bet it's the oil pan gasket...............I've seen HUNDREDS (I'm not joking) do this. Quote
BCM Posted September 9, 2006 Author Report Posted September 9, 2006 Does it stop leaking after a while?? Or will it continue to drip all night?? Or does it only leak when the motor is running/continues to leak a few minutes after shut down?? Yeah it does stop after a while, as the motor cools down. Quote
BCM Posted September 13, 2006 Author Report Posted September 13, 2006 I would bet you money it's the oil pan gasket..................as for replacing it, don't.............it's FAR cheaper and easier to just add oil..........trust me If you don't believe me, go to a dealer and simply ask how many hours labor a trained tech gets payed to do it Just in case I'm wrong ( ), other things to look at are: 1) Power steering pump and/or hoses. 2) Drivers side axle seal and/or transmission sidecover gasket. 3) Trans pan gasket. But. I would bet it's the oil pan gasket...............I've seen HUNDREDS (I'm not joking) do this. Would dropping in a L67 be cheaper? Quote
Hairdo12 Posted September 13, 2006 Report Posted September 13, 2006 I'm thinking its your lower intake gaskets leaking into the valley of the V and spilling over. Thats what mine is doing and it drips in that same location. As long as the leak is slow and it leaks out and not in, I can live with it. Quote
BIGBULS Posted September 14, 2006 Report Posted September 14, 2006 I'm thinking its your lower intake gaskets leaking into the valley of the V and spilling over. Thats what mine is doing and it drips in that same location. As long as the leak is slow and it leaks out and not in, I can live with it. Totally different engine there Tex ............. We are talking about the 3800 here. LIM's on Series I 3800's have a tendency to leak coolant, but SII's all leak at the UIM gasket..........both coolant AND oil. BUT........... The leak in THIS case IS oil pan gasket..............VERY common on SII 3800's. And an L67 is STILL more $$ Quote
Hairdo12 Posted September 14, 2006 Report Posted September 14, 2006 Oops... sorry please disregard. Quote
luzmina Posted September 16, 2006 Report Posted September 16, 2006 Try to retighten the oil pan bolts, that fixed the leakage in mine that is getting close to 250 K miles. Quote
jared Posted September 16, 2006 Report Posted September 16, 2006 betcha its the oil pump drive seal... Quote
BIGBULS Posted September 18, 2006 Report Posted September 18, 2006 Betcha not.................... Quote
Canada Posted September 19, 2006 Report Posted September 19, 2006 Its a L36 right? The major leak is going to be the pan gasket leaking.....but your intake is leaking, you are also going to need a new upper intake manifold, as its rotted out......the valve covers are also wet, so its best to reseal those while we are doing the upper intake. I didn't even look at the pictures.......thats were they leak at. Sure, the power steering pump seal and rack could be and pry are......but they are just wet. They'll be okay for now. I think L36 oil pans in a W car is above 3 hours...4 perhaps?....its been awhile since I've done one.....the gasket isn't to bad. Its actually kind of a baffle/gasket in one unit, it gets GMSed in place. You can pretty much copy and paste that same bit for every L36 out there.....kind like 3x00s and intake gaskets leaking.....and 4.58/5.3/6.0s intake gaskets leaking, they just leak air....and 4.3/5.7 intake leaks. Quote
GIANT MOTH Posted September 19, 2006 Report Posted September 19, 2006 YOUR ALL WRONG!!!! I have this similar problem. It is the rear main seal. Have fun pulling out the camshaft. Quote
IRONDOG442 Posted September 19, 2006 Report Posted September 19, 2006 Brad just sell me the car !!! I'll fix the leak and it wont be a problem anymore!!! Quote
White93z34 Posted September 19, 2006 Report Posted September 19, 2006 having worked on too many L36s / L67s recently they leak in 3 places, just like everyone else has said oil pan gasket, valve colvers, UIM Quote
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