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Sedans Cadillac DeVille Cadillac Deville - Vacuum leak
17 messages, Last post on Aug 28, 2009 at 4:15 PM
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Replying to: jlewis6 (May 13, 2009 4:04 pm) The price for a head gasket job on a Northstar is very expensive. The motor must be pulled to get to ther rear head. The heads removed, the bolt holes bored out and then re-threaded and steel inserts screwed in. The head, with new gaskets are then reinstalled, with the new head bolts screwing into the inserts. This usually stops any future head gasket problems. The cost for all of this is probably $3,000, more or less. |
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If my coolant leak is in fact loose bolts connected to the head gaskets or head gaskets, how long can I continue to drive this car in it's present condition? I still haven't overheated, but have been keeping a check on the overflow tank because it was discovered that I have some coolant getting into the nr.1 cyclinder.
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Replying to: jlewis6 (May 20, 2009 3:47 pm) Have you just been driving 'easy'? Slow accelerations and not been driving very fast? This might keep it from overheating, especially on short trips. Take the car out and accelerate it hard a few times. Find the steepest hill and run it up the hill, fast. It will probably overheat. If the car overheats and is not then totally abused by continuing to drive it, the Northstar motor is usually not hurt by a head gasket failure. Pull the car over and let it cool and refill the fluid to get the car home, slowly. It it overheats almost instantly, the car probably should be towed. The heads usually are fine, and the block does not warp. You just have the huge expense of having the bolt holes fixed up. That and new gaskets, other misc parts, and the motors are usually fine. It's just when you need $3,000 or so to fix a $6,000 car (or less), it just is not worth it. |
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When driving up steep hills and distance. My question is: 1. How long can I keep driving this car in this present state? Will the engine sieze up? Do I just need to keep an eye on the over flow tank for coolant levels?
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Replying to: jlewis6 (May 24, 2009 4:08 pm) Drive it until it seizes. Then you've driven it too far. This is the best answer I can give. |
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My question then is this: 1. Is overheating the only way to tell if this loose head bolt, overboring of the block concept will hold up? Will the engine start to skip?
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Replying to: jlewis6 (May 25, 2009 3:18 am) -A correct 'Timesert' installation (overboring of bolt holes and steel inserts) is supposed to pretty much cure the head bolt problem. -Don't know about 'skip'. Is your motor overheating or not? If you are just losing coolant and it is not overheating, you have a leak somewhere. Unless your are in the early stages of a head gasket failure. |
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Was done by the same guy that put the used motor back in 07 my Deville. The color in the tube was light green. He said he wasn't sure if it was the head gasket, but noted he had to take more apart to see if coolant was getting in on other cylinders. At that point, I felt like all I was doing was just throwing money into a hole. So first: 1. What does the color light green liquid mean is what I saw in that tube, the mechanic showed me?? And 2. My car is currently not running hot. I have not driven it over 25miles a jaunt and back once or twice a week at best. I am currently noticing that I am using more dexcool as it is probably getting mixed with the combustible gases and thats whats burning out of my tail pipe for about 20mins , then turns clear as motor is hot. She still drives good when driven and with same power and take off. I do need to do something soon becasue I also noticed just recently that my surge tank is starting to seep, probably due to pressure back flow into the surge tank with heat. Any suggestions besides push it off a cliff.? Can I get this problem fixed for under 3000 dollars? And i really can't afford that??
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Replying to: jlewis6 (May 27, 2009 10:06 am) 2) If it's not running hot, I would look for a leak. |
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| I have a 96 cadillac deville and have some issues with it the radiator was changed and every now and again i get the check coolant level light come on and have to fill it up again,also my car has a new blower motor and the air does not come in thru the face vents it comes in thru the top and bottom.Another issue I have is that the service emissions light comes on with the service engine soon light,It was off but a couple weeks ago i did some routne maintenace on it and it keeps coming on. I know thease things are minor but this car has only 93,000 miles on it and i would like to fix all thease things in 1 day what kind of parts should i buy or can you help me. | |
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