Question about 1998 Cadillac Eldorado
Engine overheating after coolant has been topped off and oil has been changed. Has been checked and there are no leaks. There is alot of water and moisture leaking out of the mufflers.
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Posted on Jan 02, 2017
SOURCE: car leaking coolant
First of all ensure that your car is leaking coolant fluid, and what is dripping is not just water condensation from the air conditioner.
If you have a coolant liquid leak, it can be from one of the ducts leading to radiator , from water pump or radiator itself. Check liquid levels, and if you have a leak have the car inspected by a qualified mechanic.
A broken water pump, for example, can cause your motor to blow in few miles.
Posted on Jun 08, 2008
SOURCE: coolant leak
You should be able to, so yes. If you have a coolant leak the pressure will build and slowly decrease or it will not get to the correct pressure. Unless the leak is in the radiator cap itself as the pressure tester generally uses a different cap.
Posted on Nov 11, 2008
ok...here is my experience with our 1999 Deville. We had the same problem with ours almost 8 months until we had the coolant flushed and filled. That is when our problem reared its ugly head. As you probably already know, this Northstar engine does have well known issues with head gasket failure as well as head bolt issues and last but not least, thermostat problems. If you haven't had an "official" overheat ( not just the coolant low light, but a true blue overheat where car has safety to shut down or run on half the cylinders) you should be fine and your engine healthy enough to repair.
I would dare say it is your head gasket. The first thing you should do is pressure test your sytem, this will diagnose whether or not it is infact your head gasket. It could also be a head bolt(s) that pull from the block when car gets too hot. If either of these things are the problem, be prepared for the investment and be sure that whoever does the work on your engine knows how to diagnose whether your engine is good enough to repair. Cadillac service bulletins instruct dealerships to replace the engine in this case, but you can repair an engine that is healthy enough. It is costly and you must love your car, but if the love is TRUE, you will love it more when it is repaired.
You did mention that the oil is fine...I know you wereprobably looking for coolant.....when these head gaskets go, the coolant doesnt necessarily mix with the oil, in fact, we didnt have that problem at all. Our coolant was shooting out the tailpipe and evaporating. You could probably check your spark plugs for coolant residue, but you would have to be sure to check them all, because you will probably have the problem in only 1 cylinder. The best way to get a yes or no is the pressure test. Good Luck!
Posted on Apr 07, 2009
SOURCE: 99 Cadillac Deville Coolant Leak
Most likely a cracked block or free plug that came out or loose. Other options are hozes, which I believe the dealer would have fixed. A third option is the water pump itself.
Posted on May 06, 2009
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Overheating can seriously damage a car's engine if left unchecked. Although overheating simply means that a car's engine temperature exceeds normal operating temperatures, the causes of overheating are varied. What follows is a brief list of some of the most common causes of engine overheating.
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