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Cadillac DeVille

2506 messages,  Last post on Sep 27, 2009 at 12:50 AM

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What is this discussion about? Cadillac DeVille, Sedan

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#2387 of 2506 2002 Deville-trouble starting by bep Sep 13, 2007 (2:59 pm)
This is an 8 cylinder (not Northstar)with 42,000 miles. Since June it has not always been starting on the first try. After jiggling the gear shift, it would start up. Yesterday it would never start. It was towed to the dealer. Once it got there it started right up and again this morning. No faults found on the computer. They are trying other diagnostics. Has anyone else experienced this problem? Any thoughts/suggestions? Thanks. Replies to this message: bolivar (Sep 13, 2007 8:34 pm)
#2388 of 2506 BEP - deville starting problem by ladymylady Sep 13, 2007 (6:37 pm)
You dont say what year the deville is....but on my old 93 deville I had that problem...and it turned out to be the alternator. Could that be it..? sometimes it would work and sometimes not...until one day it just gave up the ghost totally.
#2389 of 2506 Re: 2002 Deville-trouble starting [bep] by bolivar Sep 13, 2007 (8:34 pm)
Replying to: bep (Sep 13, 2007 2:59 pm) If you have a 2002 Deville, you DO have a Northstar motor.   Not much idea about starting problem, it could be several things.   There is a 'neutral safety switch' located somewhere on the shift mechanism (jiggling the shift) that will only allow the vehicle to start in park or neutral. There is also a brake safety switch that will only allow it to start when your foot is on the brake.   If either of these is failing, it could fail to start.   A weak battery might not start, but after being juggled around recover enough to start.   A positive or negative cable that has corrision might come and go.   Intermittent failure in the ignition switch.   Lots of things. When it comes and goes (unless it's a weak battery - this could be tested), it's tough to find electrical problems, when it is 'gone'.
#2390 of 2506 2002 DeVille "Check Coolant Level" message stays on by tcacar Sep 23, 2007 (1:45 pm)
I have a 2002 Deville with North star 4.6L engine and about 80000 miles. The "Check Coolant Level" light stays on even though I have had the water pump replaced and re-checked and I make sure coolant level is correct in reservoir tank. The temperature gage indicates normal temperature during operation, so it not overheating. Just had it checked for a non-related issue and repair shop could not see any error codes or messages. Any ideas what this might be, or what to check? Replies to this message: bolivar (Sep 25, 2007 9:45 am)
#2391 of 2506 2002 DeVille "Check Coolant Level" message stays on [tcacar] by jasper60103 Sep 24, 2007 (6:59 am)
I hear the coolant level sensor is located inside the reservoir tank. Hopefully one of the experts will chime in on how to check it. Maybe just a loose connection? Replies to this message: tcacar (Sep 25, 2007 8:19 am)
#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)

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