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Cadillac DeVille, Auto Repair, Oil, Sedan
#43 of 103 FOLLOW UP ON MESSAGE CHECK COOLANT LEVEL
Jul 18, 2006 (8:46 pm)
Had the 2004 Deville in for regular oil change today. It turns out that the coolant level was a little low so in fact the computer message was correct when it posted the check coolant level about a month ago. When I stopped at a local service station when the message flashed they had said that the coolant level was okay but it was evidently low when we did the fluid checks today. Assume if the level had dropped to dangerously low levels the the engine temperature gauge would have risen or the service engine light would have come on. Assume all is okay now, when the message flashed again about a week ago I ignored it knowing I would be going in for an oil change today. I will take it more seriously in the future. The bottom of the car was also dry so the oil leak is evidently repaired. As some of you may remember one Cadillac dealership had put in to do a complete engine reseal but the second opinion at another Cadillac dealership was that oil filter adapter gasket repair had solved the problem and the oil remaining was a residue of the first leak. Cadillac was ready to do the reseal on the say so of the first dealer. It saved me a lot of time and Cadillac some money that I suggested that the car be checked at a second Cadillac dealership. Hope this information helps other owners in dealing with related problems. Also want to thank the many owners who responded to my concerns at this web site and forum.
#44 of 103 Re: FOLLOW UP ON MESSAGE CHECK COOLANT LEVEL [bremertong]
Jul 19, 2006 (7:27 am)
You should not get any low coolant messages for a long time now that the coolant level is full. If the coolant level falls in the next few months there is a leak somewhere.
#45 of 103 Re: FOLLOW UP ON MESSAGE CHECK COOLANT LEVEL [sls002]
Jul 19, 2006 (9:28 am)
As I said in my earlier message, if anything occurs to suggest low coolant, regardless of what the reservoir shows, figure out how to check the actual level in the radiator or take it to someone who can check it. The reservoir does not always properly indicate the coolant level. I have found that to be true on at least two GM models I have owned in the past, one a Cadillac. One wonders why the dealership doesn't tell you that when you buy the car? Also we had one dealership do a transmission pan gasket replacement only to have the same thing suggested nine months later. When I mentioned that if it indeed was leaking they would be responsible for fixing it since it hadn't been a year since they supposedly changed it under the extended warranty, they rechecked and said the person who changed it last time must not have wiped the oil off of the pan. Hmmmm. Funny thing, we hadn't noticed a leak on the garage floor the first time and definitely not the second time. I think the dealership is doing better now, except maybe when you get an oil change and they don't grease the front end on newer Chevy trucks, and yes at least up through 2005 Chevy Silverados do still have several grease fittings to lube. Live and learn Bob
#46 of 103 Re: FOLLOW UP ON MESSAGE CHECK COOLANT LEVEL [sls002]
Jul 19, 2006 (7:50 pm)
While we did check for leaks while the car was on the lift,
we found none but in the event the check coolant message comes up again will get in to the more distant GM dealership ASAP. The original warranty runs out in July 2007 so I have
a year and have purchased an after market warranty that runs to 100,000 miles and seven years. Car currently has 33,000 miles on it so my original warranty will run out on date rather than miles as I only expect to put about 10,000 miles on the car in the next year.
#47 of 103 Re: FOLLOW UP ON MESSAGE CHECK COOLANT LEVEL [bremertong]
Jul 19, 2006 (11:01 pm)
BREM:........Still losing coolant? There is a hidden
coolant return line to the overflow bottle.
Could it be a loose clamp or even a cracked overflow
bottle? Maybe a bad coolant res.level sensor.
I read on the GM truck forums about many guys
who have discovered cracks in the res. bottle itself.
I know the newer Caddies and other GM vehicles
don't have a rad. cap anymore.
Luckily my 03 now has 41k troublefree miles............
Keep us posted!
#48 of 103 Re: FOLLOW UP ON MESSAGE CHECK COOLANT LEVEL [04cad]
Jul 20, 2006 (7:41 am)
As I pointed out before, the radiator on the northstar engines is not something that the owner can get to. The radiator is under some shrouding and the cap, if there is one, is not accessable. Also, the so called reservoir is sealed and when the engine is warm/hot, the reservoir is under pressure. So, the only way to visually check the coolant level is by looking at the reservoir level.
If the reservoir is cracked, it will, under pressure, quickly vent the coolant in the cooling system.
#49 of 103 Re: FOLLOW UP ON MESSAGE CHECK COOLANT LEVEL [geo9]
Jul 21, 2006 (9:24 pm)
From what I can gather it was evaporation and not a leak we added a little dexcool at my oil change on Tuesday of this week. By the way after owning my Mercury Sable 2005 as second car for about four months I decided I wanted a real twin for my Deville. Was fortunate to Find a Limited Edition of Lincoln Town Car vintage 2005, got about what I paid for the trade on the Mercury. The Mercury is a fine car but the Lincoln is awesome with extras like a sun roof,
in dash cd changer, automatic opening and closing trunk, many of these features were on my 98 Deville but not on the 2004. The Lincoln is more floaty but more quiet car than the Deville. The Towncar had 16500 miles at purchase and well under half the price, new in April of 2005. As you know the Deville engine is higher power rated but have been pleasantly surprised at the power the Towncar has especially from a standstill. Nice feature is also a button on the shifter that shifts the transmission out of overdrive into third gear for quick extra power. Like my 98 Deville it is in Gold which is my favorite color. The two cars look great parked next to each other in the garage. At this point I can't say there is a first or a second but both are tied for first. Only problem so far with Towncar is a slightly loose door handle strap on the driver door.
It will be interesting to see how these two fine cars perform in both reliability overall. If you were wondering, I generally keep my cars for average of three years but I decided that I wanted a companion car more like the Deville.If there are other Deville owners that also own Lincoln Towncar would be interested in your experiences and comparisons.
#50 of 103 Re: FOLLOW UP ON MESSAGE CHECK COOLANT LEVEL [bremertong]
Jul 22, 2006 (8:01 am)
It is normal to add some (~1 pint) coolant after a year. The reservoir is sealed, so there should not be much evaporation.
#51 of 103 Re: FOLLOW UP ON MESSAGE CHECK COOLANT LEVEL [sls002]
Jul 23, 2006 (7:33 pm)
Don't think that is in the owners manual, if it is I missed it. I bought the car at eleven months old so the additional pint you refer to may not have been added. The check coolant message has not come on since the service date five days ago, would guess they added the right amount of coolant. Check tire pressure message has come on several times during a mini heat wave we've had temperatures have been around 90 for a few days. When the message first came on a few weeks ago I dropped the pressure from 35 psi to 33and a half, guess it was not enough in that the message flashed again several times on past Saturday. I set the pressures with cold tires in the morning. The message comes on when the pressure hits 38 in any tire. Suspect the heat wave will be over in the next few days, but may have to drop them to 32 psi cold if check pressure message keeps flashing. I use an electronic pressure gauge to check pressures and in normal weather the gauge and the on board system are generally in 1/2 pound of each other. Any ideas or suggestions? Many thanks!
#52 of 103 Re: FOLLOW UP ON MESSAGE CHECK COOLANT LEVEL [bremertong]
Jul 24, 2006 (6:13 am)
I had a 2004 and now a 2005 Deville with the tire pressure system and it didn't matter if we went from Indiana to Florida or whether it was 15 degrees in the winter or 94 degrees in the summer we didn't get a tire message unless there was a significant difference in pressures from tire to tire. I wonder if you have a lot of moisture in your tire's air? Do you have a really good gauge? Do you do the manual tire pressure check in the car after setting pressures to see if your gauge matches what is in the tires according to the sensors? You may need to drive the car a bit to reset the sensors and then do the manual check with the button on the dash. This is something else you may want to take up with the dealer. Bob