Cadillac CTS-V - Oil




View Full Version : Oil


NOLAG05
05-23-2012, 08:00 AM
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.


CTSV_510
05-23-2012, 08:21 AM
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.

NeverSatisfied02
05-23-2012, 08:22 AM
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.


NOLAG05
05-23-2012, 08:51 AM
thanx, i will have to get her to the shop this weekend and up on the lift...

NOLAG05
05-23-2012, 08:53 AM
thanx, car is WAY to low to get under with a lift...lol. I will check it out this weekend...

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.

RRsV
05-23-2012, 09:09 AM
I think he means lift it and get under it. Even without being lowered you cant crawl under it stock.

CTSV_510
05-23-2012, 10:38 AM
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.

Skidmarcx
05-23-2012, 10:52 AM
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.

punishmentcycle
05-23-2012, 11:02 AM
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

CTSV_510
05-23-2012, 11:39 AM
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:

http://www.ntxtools.com/Merchant/graphics/00000001/lis-58330.gif

Skidmarcx
05-23-2012, 11:45 AM
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

NOLAG05
05-23-2012, 12:29 PM
Thanx... hows the hunt for your rear-end coming? and what are your engine mods?

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

Skidmarcx
05-23-2012, 01:26 PM
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

punishmentcycle
05-23-2012, 01:31 PM
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

NOLAG05
05-23-2012, 01:47 PM
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!!

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

Skidmarcx
05-23-2012, 04:02 PM
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

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

CTSV_510
05-23-2012, 04:12 PM
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.

07CTS-V
05-23-2012, 04:33 PM
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.

kl2onik
05-23-2012, 06:29 PM
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

GFallen
05-23-2012, 06:41 PM
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?

07CTS-V
05-23-2012, 07:29 PM
Pull the radiator and harmonic balancer then it pulls out of the front cover.

RADEoN
05-23-2012, 07:41 PM
i know mine was leaking from there :x

NOLAG05
05-25-2012, 02:49 PM
Dont know whether i should be happy or sad.. all signs are pointing to rear main seal... 800 bucks and a day worth of work at shop around the corner. Just flipped 76k on the odometer so should i get a new clutch since tranny has to be dropped to get to rear main?

CTSV_510
05-25-2012, 03:14 PM
Yes, get a new clutch for sure. At that point the labor is nothing. I recommend LS7.

Skidmarcx
05-25-2012, 05:25 PM
At least get a new flywheel lol... But yea if you have the $$ get a new clutch kit

liqidvenom
05-26-2012, 01:21 AM
sucks about the rear seal, i would suggest going for an excedy twin disk. Mine has about 35k on it, with track days, cross country trips and my wife daily driving the V 120 miles a day.

The clutch has been prob the best buy i have done for this car.

NOLAG05
06-25-2012, 10:43 AM
Well i finally got around to taking the V in for this "oil" leak and come to find out that its the tranny lossing fluid from not one but three different locations... Hoping there is something on the boards about the this issue...

DMM
06-25-2012, 10:49 AM
Well i finally got around to taking the V in for this "oil" leak and come to find out that its the tranny lossing fluid from not one but three different locations... Hoping there is something on the boards about the this issue...

Any pics?

NOLAG05
06-25-2012, 01:11 PM
None yet, this old guy i met at MIR has her at his shop in White Plains... supposed to call me and let me know whats going on... he thinks there might be something the dealers are aware of... not a recall but.... i can't think of what its called... service bulletin or something...

Stone17
06-25-2012, 01:26 PM
None yet, this old guy i met at MIR has her at his shop in White Plains... supposed to call me and let me know whats going on... he thinks there might be something the dealers are aware of... not a recall but.... i can't think of what its called... service bulletin or something...

Rear tailshaft on my transmission is leaking.

DMM
06-25-2012, 02:25 PM
None yet, this old guy i met at MIR has her at his shop in White Plains... supposed to call me and let me know whats going on... he thinks there might be something the dealers are aware of... not a recall but.... i can't think of what its called... service bulletin or something...

TSB...Technical Service Bulletin. Its GM saying we know there is a problem and here is the fix...but its not a warranty issue unless still under factory warranty.

jrane
06-25-2012, 04:51 PM
If its from your tranny it might be from the vent tube especially if its been changed recently and was over filled. It gets everywhere and looks like its leaking from everywhere.

NOLAG05
06-26-2012, 06:20 PM
so the rear end of the tranny is leaking... where the driveshaft goes in so i think its rear input shaft or output shaft.. and the rear bushings are gone... the exhaust has to come down for this fix... here we go... dayum you need to be back stateside DMM!!!

-T-
06-26-2012, 07:25 PM
That tail shaft seal was ~$20 part and about 2 hours labor on the floor of my garage. That was the first time I had pulled the driveshaft so learning curve is implemented into labor hours. Shouldn't take more than an hour if you have pulled it before.


Edit: 2 hours also accounted for trans fluid replacement

NOLAG05
06-28-2012, 08:55 AM
Since the bushings in the rear are trashed, what did some of you guys replace them with? or did you put stocks back in there?

Dmax/04V
06-28-2012, 10:39 AM
May as well go through your shifter and shifter linkage and get that squared while your in there, if you can get to it.

NOLAG05
07-03-2012, 11:31 AM
so for the shifter seal, rear seal where the driveshaft goes in to the tranny, and rear bushings this place is trying to charge me just under 1000 bucks... does this sound about right to you guys?(in the Maryland area)... i understand the exhaust has to come down and driveshaft out but does that sound over priced?

NOLAG05
07-11-2012, 09:12 AM
So the old dude has changed his price to 500 for the work since i found the parts for 270 from the caddi dealership. 2 new questions...
1. what tranny fluid do you guys recommend? i've been told b4 but i forgot to write it down
2. what bushings can/do you upgrade the rear end to? factory or is there a company that makes good rear end bushings for our cars?

Thanx!

Onefast V
07-11-2012, 09:42 AM
Amsoil torque drive is good as is Penzoil synchromesh. differential bushing is made by creative steel if that is the bushing you are referring too.

romeyjdogg
07-11-2012, 11:43 AM
I was thinking rear main, but geez. sorry to hear this. let us know how it turns out

BudRacing
07-11-2012, 12:48 PM
I'd say you're lucky it was just the tailshaft seal and not the rear main. I did the tailshaft seal on a 4l60e under a blazer a couple years ago and it was pretty painless.

NOLAG05
07-11-2012, 02:23 PM
Oh yeah! rear main would be whole new clutch going in all that jazz... Gonna keep her pretty tame and new project car will be a procharged C6...