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Cadillac CTS-V
The Caddy with an Attitude...

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Old 05-23-2012, 08:00 AM   #1
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noticed a few minor oil puddles in the garage this morning... Oil not low but i did ask a friend about car smoking a lil bit over the weekend in OC... Where do these monster LS motors drip from? I can't find it just yet... any ideas where some of you guys have lost oil from...

Thanx in advance.
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Old 05-23-2012, 08:21 AM   #2
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It's not a common problem at all around here so there isn't a specific place to check. It should be fairly obvious if you crawl under the car.
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Old 05-23-2012, 08:22 AM   #3
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Pretty sure if it's leaking oil, it could be from the oilpan gasket or the rear main seal. Most likely the rear main from what I've heard especially if u can't see the leak but it's not very common that these motors leak period.
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Old 05-23-2012, 08:51 AM   #4
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thanx, i will have to get her to the shop this weekend and up on the lift...
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Old 05-23-2012, 08:53 AM   #5
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thanx, car is WAY to low to get under with a lift...lol. I will check it out this weekend...

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It's not a common problem at all around here so there isn't a specific place to check. It should be fairly obvious if you crawl under the car.
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Old 05-23-2012, 09:09 AM   #6
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I think he means lift it and get under it. Even without being lowered you cant crawl under it stock.
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Old 05-23-2012, 10:38 AM   #7
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My car is too low to really even reach under, I just make ramps out of a couple of staggered 2x10's then throw a jack under it once the jack fits. A lift is even better though if you have access to one.
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Old 05-23-2012, 10:52 AM   #8
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Check the oil filter... it's a bitch to tighten it without using a filter wrench... which I don't use. Occasionally I'll have to get underneath and tighten the filter some more.
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Old 05-23-2012, 11:02 AM   #9
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Quote:
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Check the oil filter... it's a bitch to tighten it without using a filter wrench... which I don't use. Occasionally I'll have to get underneath and tighten the filter some more.
start using k&n filters.. they have that hex on the bottom for a 19mm socket
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Old 05-23-2012, 11:39 AM   #10
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Quote:
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start using k&n filters.. they have that hex on the bottom for a 19mm socket
Or stay with reasonably priced filters and use one of these like I do, it locks on to any 3/8" ratchet:

Click the image to open in full size.
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Old 05-23-2012, 11:45 AM   #11
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I like the idea of the hex attachment on the K&N filter... I use AMSOIL... Again I just refuse to use a wrench or tool to tighten the filter it's just my personal preference
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Old 05-23-2012, 12:29 PM   #12
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Thanx... hows the hunt for your rear-end coming? and what are your engine mods?

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I like the idea of the hex attachment on the K&N filter... I use AMSOIL... Again I just refuse to use a wrench or tool to tighten the filter it's just my personal preference
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Old 05-23-2012, 01:26 PM   #13
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Going good thanks for asking... I ordered my CS kit today... Iron kit with 3.90 gears... Engine mods are mp112 with 2.75 upper, 1 7/8 LT high flows with Corsa... Im looking to do ported TB and go e85
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Old 05-23-2012, 01:31 PM   #14
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Going good thanks for asking... I ordered my CS kit today... Iron kit with 3.90 gears... Engine mods are mp112 with 2.75 upper, 1 7/8 LT high flows with Corsa... Im looking to do ported TB and go e85
get a stock 90mm ls2 tb and a 90mm snout.. stay away from ported ones... i had two go bad from two different companys
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Old 05-23-2012, 01:47 PM   #15
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nice! stock block for now, 1 7/8 lt's, no cats, x pipe with crossover, magna flow mufflers with stock tips welded back on... and way to low to be on the road... what wheels you running... me likey!!

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Going good thanks for asking... I ordered my CS kit today... Iron kit with 3.90 gears... Engine mods are mp112 with 2.75 upper, 1 7/8 LT high flows with Corsa... Im looking to do ported TB and go e85
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Old 05-23-2012, 04:02 PM   #16
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get a stock 90mm ls2 tb and a 90mm snout.. stay away from ported ones... i had two go bad from two different companys
I've thought about and I just don't see spending the money on a new snout and throttle body for such a small gain... My uncle used a machinist on eBay for both his Vettes and has zero idle issues... For $125 and possible gains I'll take the risk. If I had a larger blower than I'd go for the 90mm

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nice! stock block for now, 1 7/8 lt's, no cats, x pipe with crossover, magna flow mufflers with stock tips welded back on... and way to low to be on the road... what wheels you running... me likey!!
Right on brotha yea I definitely need to refine my suspension... I'm running the GM accessory wheels
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Old 05-23-2012, 04:12 PM   #17
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Quote:
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I've thought about and I just don't see spending the money on a new snout and throttle body for such a small gain... My uncle used a machinist on eBay for both his Vettes and has zero idle issues... For $125 and possible gains I'll take the risk. If I had a larger blower than I'd go for the 90mm
I went to a 90 mm TB and snout when my LS6 TB broke...the peak gains were not much, the HP & TQ just carried better into the higher rpms. I wouldn't really recommend doing it unless you were in a situation like mine when I had to replace the TB anyway.
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Old 05-23-2012, 04:33 PM   #18
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The front seal is more likely to leak than the rear. I've had two leak from there, they wore a groove in the balancer shaft.
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Old 05-23-2012, 06:29 PM   #19
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Quote:
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start using k&n filters.. they have that hex on the bottom for a 19mm socket
+1 on the k&n especially if headers are present. I ran royal purple before and learned the hard way
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Old 05-23-2012, 06:41 PM   #20
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I have an oil leak too! Front seal maybe the problem, I can't trace the leak tho. How involved is it to change the front seal?
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