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Cadillac CTS Maintenance and Repair

77 messages,  Last post on Nov 22, 2009 at 10:46 AM

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What is this discussion about? Cadillac CTS, Cadillac CTS-V, Auto Repair, Engine, Oil, Sedan

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#38 of 77 by gator5000e Dec 12, 2008 (11:17 am)
Thanks, pao!
#39 of 77 Re: CTS-V motor oil question [aaseegs] by c5orCST Dec 18, 2008 (8:01 pm)
Replying to: aaseegs (Dec 09, 2008 8:44 am) So, you were listenting to a lecture the other day from a crackhead and loved it.   V series is the CORVETTE engine   Corvette comes from factory with synthetic   Synthetic is superior to natural (dino) oil...put it in anything and it's better.   Why in the F would Synthetic make an engine "explode"?   Do you own a V series? If so, read your owners manual and see if it says that.   99.9% you do NOT own Vseries, so why in the H are you wasting our time and bandwidth?
#40 of 77 Re: oil life monitor [fscarano] by lionkooch Jan 11, 2009 (6:13 pm)
Replying to: fscarano (Nov 12, 2007 4:55 pm) Sounds like a similar issue here....2005 CTS 3.6L bought used from Carmax with 18.5K miles. I changed the oil (Mobil 1 synthetic) and filter at one year and 28K miles (10K miles since last oil change) with 20% oil life left. At 35K miles and 32% oil life remaining, it started making a ratcheting noise, then the engine light went on. Long story short, I took it to the dealer, and he said the oil was low by 2.5 qts. I asked him why the low oil idiot light didn't go on and he had no answer. He said the ratcheting noise was likely an indication of damaged timing chains. Indeed they had to replace the stretched timing chains, about a $2K job, which was covered under warrantee. He said you can't trust the Oil Life Monitor and need to change oil at least every 5K miles. He said you can't go by what the owner's manual says. Any thoughts??? Replies to this message: pao (Jan 12, 2009 6:41 am)
#41 of 77 Re: oil life monitor [lionkooch] by pao Jan 12, 2009 (6:41 am)
Replying to: lionkooch (Jan 11, 2009 6:13 pm) well first I personally check oil levels at each gas fill up....so to me..driving a car that is 2.5 quarts low is an ownership issue and not a dealership issue.....I have seen where the early CTSs seem to use oil up to a quart between 3K oil changes.....you can probably do a search for the issue here   as far as not trusting the GMOL......I have three GM cars with it...and use it to the point of 25%, then do a change...using mobil 1 syn in the three cars....usually averaging about 6-7K between changes...which usually ends up being a change around 5-6 months.....   a statement that you cant trust the GMOL or cant by the owners manual to me is a travesty.......wondering what GM customer service...would say...or even the service manager at that particular dealership would say?...who specifically made this statement...the service writer, the tech or the service manager?...you only refer to "he" at the dealership
#42 of 77 2008 CTS Brake Issues by jmorg48 Jan 13, 2009 (7:23 am)
Have a 2008 CTS purchased on Sept 1, 2008 with approx. 6500 miles on it. About a month and a half ago, the rear brakes started squealing loudly when approaching a stop. There is no squeal on hard stops. It is only occurring when approaching a stop (under 20 mph) and applying soft pressure on the brakes. I heard that there was possibly an issue with the brake caliper spring. Has been checked out by one dealer, and the mechanic noted no unusual noise on the ticket (obviously hearing impaired). When I take the car back in, I plan to demonstrate the squealing as it is quite loud. I can replicate the squealing under any conditions. Anybody having the same problems, and if so, what was done to correct? Replies to this message: pao (Jan 14, 2009 5:24 am) jmorg48 (Jan 14, 2009 8:08 am) pao (Jan 14, 2009 11:33 am) and 1 more...
#43 of 77 Re: 2008 CTS Brake Issues [jmorg48] by pao Jan 14, 2009 (5:24 am)
Replying to: jmorg48 (Jan 13, 2009 7:23 am) 09 CTS here..with the same problem..there is a TSB out to replace the brake pads and the caliper brackets......had the warranty work done this past Monday and corrected the problem...   #08-05-23-009 by replacing rear disc brakes and caliper brackets   Pad Kit part number 25997338 1 each Bracket part number 25997457 2 each Replies to this message: jmorg48 (Jan 14, 2009 8:08 am) pao (Jan 14, 2009 11:33 am) jmorg48 (Jan 14, 2009 12:39 pm)
#44 of 77 Re: 2008 CTS Brake Issues [pao] by jmorg48 Jan 14, 2009 (8:08 am)
Replying to: pao (Jan 14, 2009 5:24 am) Thanks for the info. Discussed with service advisor. Apparently this is a fairly big problem as he said that the parts are on national back-order. He also said that the replacement pads are much softer pads that would wear faster than the OEM pads. Also said that when these pads wear out and need replacing, they would not be covered by warranty. Seems to me that GM/Cadillac is refusing to accept full responsibility for the problem. None of my other vehicles, current or former, ever had problems with squealing brakes. Replies to this message: pao (Jan 14, 2009 11:33 am) jmorg48 (Jan 14, 2009 12:39 pm)
#45 of 77 Re: 2008 CTS Brake Issues [jmorg48] by pao Jan 14, 2009 (11:33 am)
Replying to: jmorg48 (Jan 14, 2009 8:08 am) not sure I agree that GM is avoiding the problem....they admit the problem...came up with the engineering fix..and repairing under warranty....pads...softer or not...is relative to me..depends if they are ceramic, partial, or basic pads....not sure what the material is as I didnt ask....   my CTS no long squeals...Im happy....service department very proactive in ordering parts.......pads are a wear and tear item...I honestly wouldnt expect GM to give me a second set because they wear out.....now..lets see how long they last...my average brake job lasts me between 50-60K on my other vehicles.. Replies to this message: jmorg48 (Jan 14, 2009 12:39 pm)
#46 of 77 Re: 2008 CTS Brake Issues [pao] by jmorg48 Jan 14, 2009 (12:39 pm)
Replying to: pao (Jan 14, 2009 11:33 am) My comment might have been a little strong. You are correct in that they are taking care of the problem and that brake pads are a wear and tear item. I have also gone 50-60K on other vehicles before getting a brake job. Like you said, we will just have to see how long they last. I to will be happy when mine no longer squeals. Thanks again for the info.
#47 of 77 major repair oil cnsmption by fscarano Feb 17, 2009 (1:57 pm)
I have a 2004 with the CTS 3.6 engine. The oil consumption issue is getting worse. I have decided to repair the issue rather than accept the $4500 trade in the dealer will give. While the work is being performed would any of you have recommendations what else I should replace or have checked. The mechanic thinks the issue (oil consumption) is caused by the valve guides. I am also going to have him check or replace the timing belt/chain. The engine is very loud almost like clunking (hard to explain or describe the sound) Does the cam go in the engines. Any thoughts or advice would be greatly appreciated.

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