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You are in the Cadillac CTS/CTS-V
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Cadillac CTS, Engine, Sedan
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#235 of 721 CTS Engine Overheating
Jun 03, 2011 (4:31 pm)
My 2008 CTS is overheating. The car was at the Cadillac dealer for diagnosis for two days and they said that they cannot find the problem. They pressure tested the cooling system, checked operation of the electric fan, and put dye in it to check for leaks. When it starts to overheat, it misfires and the computer message comes on which says that the engine is overheating. Question for the forum: What is the problem and how do you fix it?
#236 of 721 Re: 2004 CTS 3.6 Engine Failure [zebandco]
Jun 04, 2011 (5:33 pm)
Just wanted to pass on great news for me........I am out of my caddy the ticking timebomb! Took a small loss,2grand, but now drive an awesome 2011 Nissan Maxima! My dealer-Marc Motors of Sanford Maine signed me up for a 3year lease,1 year free maintenace,free car washes, and full three year warranty! Blue tooth is nice and is very compatable with my cell phone.I also save the 20bucks I had to pay for On-Star!The car is so,so nice!
#237 of 721 Re: 2004 CTS 3.6 Engine Failure [maddcaddymama]
Jun 05, 2011 (4:43 am)
Good for you! Sounds like you came out better than me. I know leases are better suited for some than for others. Do your research so you don't get any nasty surprises at the end of the lease. Good luck and congratulations, caddymama.
#238 of 721 Re: 2004 CTS 3.6 Engine Failure [zebandco]
Jun 05, 2011 (5:44 pm)
Please post any worries about the lease......think I am good but all the imput is appreciated! Thanks! Feel better without the Caddy.........
#239 of 721 Re: CTS Engine Overheating [nwraaa]
Jun 06, 2011 (7:53 am)
I apologize for your frustrations. I would recommend asking your dealer to involved technical assistance. If you would like I can also set up a case for you with GM Customer Assistance. Please let me know if you would like me to do so.
GM Customer Service
#240 of 721 05 CTS Lost oil and misses on #4
Jun 06, 2011 (11:16 am)
My 05 CTS with a 3.6L recently had a check engine light. I took it to an autoparts store and they told me I was miss-firing on #4. I put new plugs in it (Champions) and it worked fine for the next 10,000 miles (It had 100,000 at the time). Now the light is back and I discovered I was 4 quarts low on oil. I hear a noise sounds like it's coming from the top end of the engine. #4 missing is the computer fault. I have changed the plug twice- second time using origional Delco plug reccomended by my dealer, then I changed the fuel injector (recomended by auto parts store) and I have swapped out the #4 spark igniter with the #6--- stil rough idle with a light and miss-fire #4. The dealer wants to hold the car to diagnose it but, since I am making the last payment this month, and it is out of warranty by 2 years and 60,000 miles, I am not ready to pay $1000 to have someone tell me I will have to pay more to fix it. I cannot find a trace of the oil leak so I will have to assume it's being burnt by the cataletic converter somehow- that mobile one must not smoke much. Best case scenario is a bad valve guide seal on #4, worst I suspect a crack in the head at #4 or bad piston rings. I see several folks have had this problem but has anyone been told what specific item has failed? Thanks!
#241 of 721 Re: 05 CTS Lost oil and misses on #4 [cadyeldoman]
Jun 07, 2011 (8:19 am)
If you were low four quarts of oil, how many miles did you have since you had last changed it? That is a lot of oil consumption. My guess is that you have damaged your engine running that low on oil. Of course, that has nothing to do with the plug misfiring. If I were you, I would be running to trade it after your last payment.
#242 of 721 Re: 05 CTS Lost oil and misses on #4 [cadyeldoman]
Jun 07, 2011 (8:33 am)
That's how it started for me. The timing chain jumped on mine. If the valves are out of time the oil blows by them and into the converters. I would get out now!!! If the chain jumps all the way off count on putting a new engine in.
#243 of 721 Re: 05 CTS Lost oil and misses on #4 [temj12]
Jun 07, 2011 (11:28 am)
I had 50% oil life left, normally it does not burn more than a quart between oil changes. I'm looking at the design of the valve stem seals in my service manual- I can see where one might pull apart and cause all of this oil loss- resulting in a misfire as well. I can't find the statistics on how many CTS's were sold as compaired to how many engines failed but I am guessing around 300,000 per year were sold (my eldorado sold at 80,000/year but they are a rare car to see compaired to the CTS). Even if a thousand were having this problem I feel I would be fine if I just fixed what I had. I have the cam cover off now and plan to remove the camshafts today (it's hot outside- I'm in no hurry to kill myself in the heat) I have a trick to remove the valve springs by running a cotton rope down the spark plug hole then turning the engine until the piston presses firmly against the valves to hold them in place. My biggest problem is that my dealer closed up and I have to drive 30 minutes to talk to another. My old dealer used to loan me special tools if I needed them (They make one for everthing nowdays). I figure my 88 eldo has 340,000 miles and runs great, while my 92 eldo has 200,000 and runs like new as well. I don't trade cars in anymore, I just keep them. Sounds crazy but blue book is based on the idea that a used car is going to be the one in a thousand that does not run right- thats why the first owner sold it or traded it in. Most used car dealers can hide these problems with rags placed under the valve covers (stifens noise and slows the oil leaks temporarily). Anyhow, the lower end of the engine does not seem to have a spun bearing yet- I know what that sounds like from racing chevy's in my younger days. If I can find one in a junk yard I may just get a new cylander head- but they are very hard to find there-- a good sign for overall reliabilty anyhow. Thanks!
#244 of 721 Re: 05 CTS Lost oil and misses on #4 [avguy2]
Jun 07, 2011 (12:29 pm)
Thanks for the info. I seem to have a tight chain and the misfire only effects #4 so I am thinking it could still be minor- that is, my labor and 4 valve stem seals (maybe as much as $70 for a bag of 24 of them)- and/or some lifters . If I need to I will put another engine in it- but not new- salvaged. They are very hard to find- I may have to go to the town hit by the tornado and bring one home upside down on my boat trailer. Thanks again!