Last post on Feb 09, 2013 at 10:09 AM
You are in the Cadillac CTS/CTS-V
What is this discussion about?
Cadillac CTS, Cadillac CTS-V, Sedan
#6318 of 6595 Coolant Leak 2003 CTS / Oil Cooler Seals
Oct 05, 2005 (11:29 am)
(cross posted in Cadillac Owners: Problems and Solutions)
OK, need your help on this one:
2003 CTS, 3.2L, 5spd automatic, 57,000 miles, build date March 2002.
Owned since new, all service per schedule, Mobil 1 since 10k.
Check Coolant Level warning light came on a while back. Level was down about 1/2" below "Full When Cold" line, so I topped up with 50/50 Dexcool/H2O mixture. Figured that after 3.5 years and 55k+ miles it was normal. Took about 1.5 quarts of coolant mixture to top off.
Week later, noticed a small (3") stain/puddle of coolant on the driveway after being parked for a few days. Fluid level still OK. Another week or so of regular driving, level down again, another small puddle.
Dealer service put in the tracer dye, and tell me the leak is from the rubber seals on the engine oil cooler that is (inexplicably) placed under the intake manifold.Its purpose is to regulate engine oil temperature, and it is apparently a similar design as the Opel engineered 3.0L Catera DOHC engine on which the 3.2L is based. Dealer is aware of similar leaks in the Catera.
Here's the problem:
The thing is so inaccessible that it's 6 shop hours to R&R, and when they get in there, it could require replacing the cooler itself ($250), all of the lines, etc. Since the seals are rubber (O-ring?) type, and not regular gasket material, dealer says adding leak-stop tabs won't work.
So far, no coolant in engine oil, no catastrophic leaks. Does anyone have an opinion/recommendation on what to do here? I'd prefer not to shell out upwards of $700 to fix what is currently a "nuisance" leak, but don't want to risk major engine damage, either
#6319 of 6595 Re: evok [evok]
Oct 05, 2005 (5:17 pm)
thanks, evok. Appreciate the comments. Anything you can add about changes in mechanicals (i.e. six speed auto, mods to the engine, etc) would be appreciated.
#6320 of 6595 Re: Coolant Leak 2003 CTS / Oil Cooler Seals [riskybusiness]
Oct 05, 2005 (5:19 pm)
If I were you, I'd do just what you're doing -- nothing, with careful monitoring. Clearly, if the leakage rate increases markedly at some point, you'll probably have to cough up the $700.
In my world (aerospace), o-rings are generally well retained so that they can't blow out completely and cause anything catastrophic. But, they can deform & leak, as you've seen.
You could drive it like this for 50K miles, so long as you're willing to have puddles in your driveway or garage & don't mind adding coolant on a regular basis.
#6321 of 6595 Re: Coolant Leak 2003 CTS / Oil Cooler Seals [cdnpinhead]
Oct 06, 2005 (5:41 am)
Thanks for the advice. When I picked up the car, they said they added some leak-stop tabs anyway, and couldn't be absolutely sure it wasn't a manifold gasket. Haven't noticed any puddles today, but I'm setting out the clean cardboard under the car tonight
#6322 of 6595 AWD for 07 CTS
Oct 07, 2005 (7:37 am)
I'm completely enamored with the CTS and would like to seriously consider a 2007 purchase. The one drawback, I live in Upstate New York (and I don't mean Westchester, I mean snow country). I've been driving SUV's for the past 10 years and have come to rely on the AWD capability of these cars.
Is there a possibility that the STS AWD option will be offered in the CTS?
I know you said you wouldn't be giving out anymore info on the 07 CTS, but this piece of information would help me, and I'm sure, others in making a decision.
#6323 of 6595 2006 CTS Cornering Lights
Oct 08, 2005 (5:33 am)
Does the 2006 CTS have cornering lights? There is no reference to this in the options.
#6324 of 6595 Re: 2006 CTS Cornering Lights [blackvette02]
Oct 08, 2005 (12:17 pm)
Looking at the pictures of both the CTS and STS, I think there are no cornering lights. The DTS appears to have them.
#6325 of 6595 Re: AWD for 07 CTS [jpenn]
Oct 11, 2005 (7:07 am)
It is my understanding that all the sigma vehicles will be sharing more componetry from here on out in an attempt to cut platform costs much like Infiniti has done with the FM platform. jpenn, I hope that answers your question.
#6326 of 6595 Sigma Vehicles
Oct 11, 2005 (10:28 am)
I think you're saying the answer is, yes AWD will be available on the 07 CTS.
Thank you for the answer and your insight. I know many of us would be happy to hear more of what you have.
Now, if they only would consider making a coupe !?!
#6327 of 6595 Re: new CTS Model Year[evok]
Oct 12, 2005 (3:44 am)
You seem to know a lot about the new CTS redesign. I love my 2003 CTS and really want to get the next generation CTS. I am hoping Cadillac will have the redesign model released as a 2007 model, but I have been hearing rumors that they might delay it until the 2008 model year. Can you advise us which model year the redesigned CTS will be introduced?