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Cadillac DeVille

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#2392 of 2506 Looking at a 2002 DTS with 79000 by onelord Sep 25, 2007 (6:17 am)
Hey I was looking at getting a 2002 DTS 79000 miles for only 10900$ It is in perfect condition. The problem is that im in mich and the car is in wisc. 4.5 hr drive for me. Any suggestions? or info to share on the 2002 dts pros and cons. Thanks
#2393 of 2506 Re: 2002 DeVille "Check Coolant Level" message stays on [jasper60103] by tcacar Sep 25, 2007 (8:19 am)
Replying to: jasper60103 (Sep 24, 2007 6:59 am) Thanks. That is my understanding also, and a faulty sensor occurred to me also. I do not know how to check that. An auto parts employee told me that he heard of a case where the same problem was solved by simply replacing the reservoir tank cap. That does not make sense to me because a dealer told me that the level sensor senses actual liquid level and not pressure.
#2394 of 2506 Re: 2002 DeVille "Check Coolant Level" message stays on [tcacar] by bolivar Sep 25, 2007 (9:45 am)
Replying to: tcacar (Sep 23, 2007 1:45 pm) Well, the sensor 'thinks' the coolant level is low. The sensor is the 'surge' tank, which is the tank under the cap where you fill the coolant.   Sometimes the sensor is just dirty, sometimes it has failed. In any case, I think the tank is going to have to be removed. Which means that a couple of hoses will have to be pulled off.   Pulling these hoses off may not be real easy. The small hoses on a Cadillac are known to be difficult to remove, especially up by the firewall, which is where the surge tank is located.   If you can get the tank off, and flush it out well, this might clean off a sensor that is just dirty and not functioning. If I went to this much work, I would replace the sensor.
#2395 of 2506 car stopping by saxmanmrkeys Sep 29, 2007 (6:05 pm)
I have a 94 Sedan Deville that stops running at the corners and even sometimes when i drive. Another problem I have is that when running and standing still it idles rough. Can anyone give possible solutions?
#2396 of 2506 96 cadi deville northstar v-8 by hsloan68 Oct 09, 2007 (8:31 am)
my car has always ran good but the other day i went to start it up and it said theft system problem wait 3 mins. so i waited 3 mins and nothing..that was 4 days ago and it still wont start..i cant figure out what it wrong? the battery is fine, but it just wont crank due to the theft system problem..nebody know how to fix this? if so it would be greatly appreciated! thanks! Replies to this message: bolivar (Oct 09, 2007 11:28 am) jaymej (Dec 19, 2007 5:58 pm)
#2397 of 2506 Re: 96 cadi deville northstar v-8 [hsloan68] by bolivar Oct 09, 2007 (11:28 am)
Replying to: hsloan68 (Oct 09, 2007 8:31 am) I think your car has the first version security system, which has a resistance 'pellet' in the middle of the key. If so, the easy problem is the 'pellet' in your key may be dirty. Clean it with electric cleaner or some such thing and try it again. Or, if you have another key, try it.   Or, there is a true problem with the security sytem. The wiring from the key down the steering column is a very small wire, and this sometimes breaks.   Or the key cylinder is bad and needs to be replaced.   A workaround, if you can find someone that knows how to do this, is to find out which of the 16 or so resistance values your key pellet uses (measure it with a good multimeter), and buy a resister with this value and find the wires in the steer column, cut the wires, and wire in the resister.
#2398 of 2506 removing factory audio system 2002 deville by slimcutta5 Oct 13, 2007 (10:03 pm)
hello I've heard that it is not recommended that the factory player be removed for custom in dash monitors or any other receiver other than the current player. what steps (if any) should you take to carefully remove the factory player and install any custom players/receivers without damage to the system? thanks Replies to this message: bolivar (Oct 14, 2007 2:32 pm)
#2399 of 2506 First time Caddy owner, 2003 Deville by paulthebaker Oct 14, 2007 (10:56 am)
This is a huge step from my old Acura Integra, I will say it was a great car, the most reliable that I have ever owned. The Deville is just great, my wife says it feels like we have grown up. It was a local car sold new at the local dealer then traded in. 60K miles and very clean, is there anything that I should look for as far as service. Also, it only has 1 key. Should I deal with the dealer, or is there a more economical route. Thanks in advance. Replies to this message: bolivar (Oct 14, 2007 2:51 pm) 04cad (Oct 14, 2007 3:29 pm) zimzam1 (Oct 15, 2007 4:06 pm)
#2400 of 2506 Re: removing factory audio system 2002 deville [slimcutta5] by bolivar Oct 14, 2007 (2:32 pm)
Replying to: slimcutta5 (Oct 13, 2007 10:03 pm) I'm not an expert here. But, by this model, I think the radio is an intergral part of the 'serial communication port' wiring. If you pull the factory radio, you may have all kinds of things shut down.   Many aftermarket radio installers have learned to just push the stock radio back into the dash, leaving it connected, and then putting their unit into the hole. What a clutz approach.   My opinion - on late model autos, especially those with complicated electronics, I think adding an aftermarket radio, security system, or remote start is just asking for electrical problems. If not with installation, then later when the trashy electrical connects the installers make start to come appart.
#2401 of 2506 Re: First time Caddy owner, 2003 Deville [paulthebaker] by bolivar Oct 14, 2007 (2:51 pm)
Replying to: paulthebaker (Oct 14, 2007 10:56 am) How much do you want to spend?   At 60,000 miles, the plug and plug wires are supposed to be good for 100,000 miles, but they might something to replace. Use only the original Cadillac wires, and I would also say to use the AC plugs (or maybe they are Denso by this year) recommended for the car (platium). Don't go for any of the multi-contact stuff, just get a platium plug the owners manual recommends.   At 60,000 miles and 4-5 years, unless you have the service records for the car and it has already been done, the coolant system needs serviced. It's also supposed to be good for 100,000 miles, but this is one I definitely would have done. Have the old coolant flushed out throughly and the recommended amount of Dexcool replaced.   What does your oil usage percent indicate? You cannot be sure it was reset correctly at the last change. Consider having oil and filter changed, and reset the oil life indicator at that time. Just bring it up in the display area, and then hold down the 'reset' button for a few seconds. It will reset to 100%. You will then know the oil life indicator is correct.   Unless the car has been abused, mainly meaning having overheated, or used as a tow vehicle, the transmission fluid is probably ok. This fluid can easily go to its 100,000 mile recommended change milage. When you do have this serviced, DO NOT have a 'flush' done, where they hook up an external machine and force the fluid into/thru the transmission. Have someone that knows something about a Northstar do it. The pan must be dropped, there is no filter to replace, just a wire screen to be cleaned, but most important, there is a second fluid plug inside that must be pulled, then an additional, large amount of tranny fluid will come out, more than comes out when the pan is dropped. Many service people do not even know about this, and you are not getting the entire amount of fluid drained that can be drained. My 2005 also has a 'transmission fluid life' percent indication, and I assume this can also be reset by holding down the reset button.   Other than this, start saving your money, because something on this complicated auto is going to break and need servicing.

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