Last post on Mar 14, 2013 at 8:16 AM
You are in the Cadillac CTS/CTS-V
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Cadillac CTS-V, Cadillac CTS, Sedan
#2792 of 2880 2008 cts driveshaft problem
Jan 24, 2011 (12:38 pm)
My 2008 cadillac cts has been making a rattling noise since about 20,000 miles. I took it to the dealer several times and they could never find anything. It has become quite loud and I waited until it was so loud that they couldn't miss it. It would make a loud pinging noise best heard at about 15mph.
Now the dealer said that the entire driveshaft is loose and needs to be replaced. I have 55,000 miles so it is still covered under warranty. Overall I am very unhappy with this car. I think it is a piece of junk just like every other gm car I have ever owned.
So if anyone has had a similar problem and was told they couldn't find anything, think of the driveshaft.
#2793 of 2880 Re: 2008 cts driveshaft problem [kurtcts]
Jan 24, 2011 (1:25 pm)
Also keep a few quarts of oil in the trunk. If the engine dumps its oil suddenly (known defect but GM's not admitting to it), make sure to fill it up before taking it in as they'll blame you for running it with no oil in it. You'll know if this happens when the thing throws a rod or spins the bottom-end bearings. (sounds like an old 1970s Mercedes diesel - can't miss it.)
NOTE - the oil won't usually go out the exhaust or an the ground but get several quarts worth trapped in the cat and muffler.
The reason is that the engine oil needs to be replaced at every 3K miles, even though it is synthetic. If the protective agents in the oil give out, the lubrication drops to nearly zero. Traditional oil dies in a more gradual manner and has somewhat of a buffer - it just turns into sludge. Synthetics don't and get thinner as they age. GM's "official" recommendation to its mechanics is to change it at 6K and ignore the oil life sensor/readout. I'd stick to 3 months to be safe, since a new engine is an unbelievable cost versus regular oil changes.
#2794 of 2880 2008 and later NAV system hard disk based
Mar 08, 2011 (9:25 am)
Isn't the navigation system on 2008 and later CTS hard disk drive based??? Why would you need an "update disk"???
#2795 of 2880 Re: 2008 and later NAV system hard disk based [cadillacmike]
Mar 08, 2011 (11:13 am)
How else are you going to get the software onto the hard drive?
#2796 of 2880 Re: 2008 and later NAV system hard disk based [cadillacmike]
Mar 08, 2011 (12:19 pm)
The nav system is hard disk based, but the actual map data is updated yearly to keep up with current roads and add new information. This new and updated information is included on the update disk. In many areas, such as Austin Texas, New roads and developments are being added very quickly. If you want current information on your nav system you need to purchase and install the update disc.
#2797 of 2880 Re: 2008 cts driveshaft problem [plekto]
Mar 08, 2011 (1:57 pm)
They are now i just got a recall
#2798 of 2880 2008 Cadillac CTS Electical Problems
Jul 12, 2011 (10:54 pm)
I have owned my 2008 cadillac for 5 mths and I have taken it to the dealer 5 times all Electical problems replaced driver window motor, amplipher, some brake bracket (IDK), passenger side window won't defrost, door lock would not release, and just picked it up today for the rear defroster. I love this car just not committed to having a relationship with Cadillacs service department. It sucks that I lost my hard earned down payment.
#2799 of 2880 Re: 2008 Cadillac CTS Electical Problems [misable]
Jul 15, 2011 (11:47 am)
What do you mean by 'I lost my hard earned down payment" ?
#2800 of 2880 Re: 2008 Cadillac CTS Electical Problems [bingoman]
Jul 15, 2011 (1:15 pm)
Maybe he didn't make his payments and the repo guys got it.