- #11 of 40
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Re: cadillac cts bucking, surging problem [bill86]
by cadee05
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May 12, 2006 (5:42 pm)
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Replying to: bill86 (May 06, 2006 2:23 pm)
I have a similar problem with my escalade. It is automatic, but it bucks when going to second gear.It is an intermittent problem that began at about 7,000 miles. The check engine light does come on and transmission slipping code comes up. I am in the midst of fighting GM over it because they aren't able to find the problem. let me know what happens with yours, and I can keep you posted about mine.
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- #12 of 40
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Transmission Cooler Line Rupture
by scott1121
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May 23, 2006 (11:21 am)
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I have a 2003 Cadillac CTS that just hit 100k miles. I'm told that the transmission cooler line that runs through the radiator ruptured. This mixed coolant and trans fluid. The result is they tell me I have to replace the radiator, flush the cooling system, and replace the transmission. They said to rebuild the trans would cost as much or more than installing a new one. Total estimate for this repair job is $5,500. Cadillac doesn't want to talk to me about assistance with this because I just hit 100k miles. Actually it happened at 101,000. Has anyone had a similar experience? Any luck with Cadillac? Any insight anyone can provide is appreciated. 
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- #13 of 40
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Re: Transmission Cooler Line Rupture [scott1121]
by bill86
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May 29, 2006 (8:23 am)
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Replying to: scott1121 (May 23, 2006 11:21 am)
Scott- this is unfortunate, but at 100,000 you're not far from needing a new trans anyway. mine (1993) had a faulty sensor at about that age and it cost 1400 to replace it as the trans had to be removed (at least in part). Anyway, my suggestion is get the trans from GM as it will have a 36,000 mile warranty, while the trans shops here only give 12,000 due to their converters, which usually quit locking up at around that time. My STS had 202,000 mi and runs nearly as new other than when I first start it. It uses the same amount of oil, about a qt in 1700 mi., as when I got it at 32,000 mi as a lease return. My service ride control light comes on but I don't notice any change in ride and I know this would be expensive as the ride control shocks are $500 wholesale, so I leave it alone. Hope this helps.
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- #14 of 40
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Re: Transmission Cooler Line Rupture [bill86]
by scott1121
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May 29, 2006 (8:35 am)
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Replying to: bill86 (May 29, 2006 8:23 am)
Thanks for the info. What I found out was this... AT 100k miles (the rated life for trans & coolant) I took the CTS to a GM (not Cadillac) dealer that I had been using for oil changes, etc. for the service. It turns out that the bolt that connects the transmission line to the radiator is a "quick-connect" and is not intended to "un-screw". They didn't know and stripped the bolt. They did not do the service, they just put the connection back together and sealed it with epoxy and told me they couldn't do the service on the trans and told me to take it to a Cadillac dealer for the needed service. The connection was not tight and the fluids bagan mixing immediately. The whole thing failed in about a week and the connection blew out and dumped the milk-chocolate colored, milkshake thickness fluid all over the ground. I had to replace the radiator and trans and have the collant system thoroughly flushed. The total bill from the dealer was $5,500 plus all the towing and rental cars. I'm having discussions at this point with the dealer that originally "tried" to do the service about reimbursing me for the costs associated ($6,000). Word to all - take your cadillac to a cadillac dealer. Even the oil plug has a special wrench. 
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- #15 of 40
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2005 cts - transmission
by ncpaperboy
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Aug 08, 2006 (11:42 am)
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My 2005 cts seems to be "stuck" in low gear at 45 mph. 1st return to dealer one year ago, replaced rear differential carrier assembly and latch. Problem went away for about nine mos. No change in driving habits or accidents, same thing happened again. Dealer replaced carrier assembly again, but still having transmission issues. Anyone else experiencing similar problems?
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- #16 of 40
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Re: Question for CTS Owners.. [midgey1]
by ctsjunk
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Oct 21, 2006 (2:12 am)
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Replying to: midgey1 (Nov 19, 2005 9:20 am)
I have a 2003 CTS that makes the same noise. I never even addressed that problem to anyone because the car has been a piece of crap and headache since day one. It has been in service more than anything and everytime I get one thing fixed the idiots cause another problem. I get the same reply from all of them when I explain the newly developed problem.."well nothing we did would have caused that"! The motor blew in it with only 13k miles on it that was 6 months after I purchased it. Cadillac put a new motor in but the car still continues to have various problems. I have had crappy service from every Cadillac service dept and I am about to drive the car through one of the dealership showrooms. I shoud have done the lemon law deal but did not pursue it and now it's too late. The car is only 3 years old and I feel like I have owned it for 10 years and my service records look like service records on a 10 year old vehicle. Hope nobody else has experienced as much crap as I have. 
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- #17 of 40
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2003 CTS torque converter???
by teach76
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Oct 26, 2006 (12:57 pm)
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I took my '03 to dealer (not Cadillac) to see what would be causing my car to start "shimmying and shaking" around 55-60mph. It feels like the car needs to , as my husband says, have the cobs blown out of it. Well, after 1 1/2 hrs. of test driving and diagnostic this and that, the diagnosis is that it needs a new torque converter to/for the transmission.....a $2500 parts/labor job. Of course, the transmission is 2 months out of its warranty. I'm wondering if there's something else that could be the problem. Any advice? The car has 44,300 miles and has never been mechanically troublesome, until now. Thanks, Teach76
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- #18 of 40
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Re: 2003 CTS torque converter??? [teach76]
by teach76
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Oct 28, 2006 (8:31 am)
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Replying to: teach76 (Oct 26, 2006 12:57 pm)
It's Teach76 answering my own query. Our dealership is doing all the torque converter repairs on my '03 CTS at no charge whatsoever to me. Wow! I guess it does pay to be a loyal customer of the same dealership for 20+ years! I am pleased as punch!  Teach76
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- #19 of 40
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Re: 2005 cts - transmission [ncpaperboy]
by dewin
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Dec 09, 2006 (8:10 am)
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Replying to: ncpaperboy (Aug 08, 2006 11:42 am)
I have a 2005 cts with 43,000. I love the car, but I have noticed the transmission shifting down hard at very low speeds (like when driving through a neighborhood looking for an address). After traveling to NC, I noticed a problem with it shifting into and staying in the overdrive or highest gear which would cause a shuddering at about 45 mph and 1,500 -1,900 rpm. Or it would shift down and not drop back into overdrive at 50 mph and above. I brought it to the shop and they re-programed the chips involved (they told me these were standard adjustments that they were making to all cts when they got them in there) It shifts down better now, but the shuddering at 45 mph still occurs on slight inclines on winding roadways. It makes me nervous as the car is approaching 50k, And I do not want to buy the $2,500 extension to the warranty. I know the engine in this car is a great engine, that is why I bought it, but I never expected poor transmission designs from GM, that has been a surprise. Have you received any responsed from other cts owners with similiar problems? I would be interested to hear what you have learned.
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- #20 of 40
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Re: 2005 cts - transmission [dewin]
by quietpro
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Jan 17, 2007 (7:26 pm)
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Replying to: dewin (Dec 09, 2006 8:10 am)
Try a web search for a product called "Dr Tranny". It is a product especially designed for transmission "shudder" which sounds like what you are experiencing. I tried it in my car and it INSTANTLY fixed the problem. Prior to this, I had the torque converter replaced under warranty and when the problem resurfaced (out of warranty), the dealership said it was a different problem. I took it to several shops and all said I would have to replace the torque converter.
I found out about the product from my nephew who works at a transmission shop. The shop's policy is to add the product to every transmission they rebuild. The product is inexpensive, $5 -$10 once you factor in shipping, and won't affect warranties. And no, I don't have stock in the company; I'm just a very satisfied customer. 
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