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165 messages,  Last post on Nov 06, 2006 at 10:29 AM

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#146 of 165 Re: 2000 DHS oil problem [txcaddi2000] by bolivar Sep 12, 2006 (9:04 pm)
Replying to: txcaddi2000 (Sep 12, 2006 6:42 pm) Coolant use scares me. This is one indicator of a leaking head gasket. May not be leaking enough to run hot, but enough to be pulling it into cylinder and 'burning' it.   Oil use? Bad gasket usually does not cause this. Maybe you just suddenly also had the 'sticky rings' problem which causes significant oil usage. And can sometime be reduced by 'blowing out the motor' with several high-rpm runs out on the road.   But with a possible head gasket problem, I don't know if I would do this. Unless you want to go ahead and verify a leaky head gasket. If so, whomp the heck out of the car. It if starts to overheat, I think it has a failed gasket. Replies to this message: txcaddi2000 (Sep 13, 2006 2:08 am) bolivar (Sep 15, 2006 12:06 am) txcaddi2000 (Sep 19, 2006 7:40 pm)
#147 of 165 Re: 2000 DHS oil problem [bolivar] by txcaddi2000 Sep 13, 2006 (2:08 am)
Replying to: bolivar (Sep 12, 2006 9:04 pm) thanks Bolivar. I do drive the car hard each day already, I drive 30 miles to work, half of the trip is bumper to bumper stop and go - our weather has been in the 100s so the AC is definitely on; a definite issue with overheating would have occurred I think. The other half is pretty open, and I tend to have a heavy foot, going about 75-80 mph, and still no problem with overheating. I don't know what "sticky rings" are? Would you explain more? Is there anything other than the drive that I can do which would help this problem? Again, thanks, as you can tell, I don't know all about car problems. Replies to this message: bolivar (Sep 15, 2006 12:06 am) txcaddi2000 (Sep 19, 2006 7:40 pm)
#148 of 165 Re: 1964 DeVille firing order [Mr_Shiftright] by deltacadillac Sep 14, 2006 (1:03 pm)
Replying to: Mr_Shiftright (Sep 12, 2006 12:25 pm) thank you very much for your help Unfortunately im still in need of assistance lol. i'm wondering what the cylinders are numbered as to coraspond with the plugs i. e left faceing side of engine should be numbers 1-3-5-7? sorry i know this is something very simple but i have only had one cadillac up untill now and never had to do any work on it so thanks to any who respond. oh a link to a site with pictures of firing order cylinder locations etc would be very cool thanks Replies to this message: Mr_Shiftright (Sep 19, 2006 8:06 am) Mr_Shiftright (Sep 22, 2006 7:39 pm)
#149 of 165 Re: 2000 DHS oil problem [txcaddi2000] by bolivar Sep 15, 2006 (12:06 am)
Replying to: txcaddi2000 (Sep 13, 2006 2:08 am) Yes, Cadillac has an elaborate procedure to help sticking or carboned rings. Involves removing all spark plugs, when motor rotation is at a specific point then pouring a solvent/cleaning material into the pistons and letting it soak for two hours. The vacumn it out with a special tool. Then change the oil. Then take the car out and run it. Then change the oil again. Something along these lines.   And I've read this is not always successful.   Stuck/carbon rings usually result from 'careful' or constant speed driving.   Several 'red-line' runs through the gears, up to about 100mph, can many times greatly reduce oil usage.   But I think I would first try to find the missing coolant. It could be leaking onto the hot motor and boiling off. Or a leaking heater core might spill fluid inside the car on the carpet. It these, and most other cases, you should use your nose to smell for leaking antifreeze. It has a destinctive sweet smell. If no leak, the it may be burning it past leaking head gasket. Replies to this message: txcaddi2000 (Sep 19, 2006 7:40 pm)
#150 of 165 Re: 120,000 Mile Club - any members here? [geo9] by bernadette55 Sep 15, 2006 (8:08 pm)
Replying to: geo9 (Sep 06, 2006 7:48 am) Yes I have a 91 deville at 169299 and it was going strong until it came time for emission this time so now I am trying to find out exactly what the problem is I do think they are worth what ever it takes.
#151 of 165 94 Cadillac Deville/Concourse Grinding on Start by giusto Sep 18, 2006 (9:03 am)
I recently was doing body work on my Caddy and let the battery drain on accident. I was jumping it when it sounded as like it was going to turn over when it made a crunch/grind noise. I bought a new battery and now it just makes a metal to metal grinding noise when I try to start.... Starter fried? PLEASE HELP!
#152 of 165 Re: 1964 DeVille firing order [deltacadillac] by Mr_Shiftright HOST Sep 19, 2006 (8:06 am)
Replying to: deltacadillac (Sep 14, 2006 1:03 pm) e-mail me and remind me to look this up for you!   Shifty the Host
#153 of 165 Re: 2000 DHS oil problem [bolivar] by txcaddi2000 Sep 19, 2006 (7:40 pm)
Replying to: bolivar (Sep 15, 2006 12:06 am) thanks so much for the insight. I am taking Caddi to the neighborhood garage tomorrow to have the coolant issue checked and get her oil changed. My godson called me last weekend and we discussed this (he's in the Army overseas) and he agrees with you about the coolant, and told me the last oil change was probably the wrong thing to do (I let them talk me into synthetic oil). So I am going back to regular oil. Hopefully we can find the problems. I love the car, it is almost 7 years old and still looks new, rides like a dream, and gets great mileage for how I drive her. I greatly look forward to a good reason to red-line her, when my godson gets here, I will race his supped up 70s dodge, he'll beat me I am sure, but it will be fun. I'll let you all know how this issue works out just in case someone else questions. Ya'll been great - Thanks!
#154 of 165 91 Deville no heat. by rbair Sep 20, 2006 (5:14 am)
HELP!!!!! I have a 91 Deville, with 67K miles on it. I can't get any heat. The a/c works fine, Blower works fine, I've checked/changed the Coolant thermostat. Obviously theres another stat or something that modulates the heat on this vehicle within the climate control system.   Thanks, Randy Replies to this message: bolivar (Sep 21, 2006 12:57 am) imidazol97 (Sep 21, 2006 4:16 am)
#155 of 165 Re: 91 Deville no heat. [rbair] by bolivar Sep 21, 2006 (12:57 am)
Replying to: rbair (Sep 20, 2006 5:14 am) Caddies of this age are known to clog the heater core. Only solution to this is a new heater core. (Ok, you might get part of a clog flushed out if you can get to the hoses.) It's a mess to change, per what I've heard. Tough to get the hoses off and back on. Replies to this message: imidazol97 (Sep 21, 2006 4:16 am)

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