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What would cause a 1998 Cadillac catera to overheat and water come out the overflow after replacing the radiator?
Wiki User
∙ 15y ago
I have owned my 97 Catera for many years. I have learned everything bad about this series of Cadillac and there are many. One of the biggest problems with this car is overheating. In 90% of these cases, it is warped heads and/or the gasket cylinder head gaskets that have been eaten away and water is leaking into the engine or exhaust system. When the leaking cylinder fires, it blows hot exhaust back into the cooling system that super heats the water and causes overheating. If your Catera has overheated more than once and the temperature gage was well into the red, it has most likely warped the head. In most cases the coolant from GM has to be changed every 50,000 miles or it becomesacidic and eats out the head gasket. There was a law suit against GM for this coolant that GM lost. Other causes of overheating can be caused by a stuck thermostat, but the result will be the same, a warped head. I had to replace one head (to warped to resurface) and both head gaskets. There is a simple test for a blown head gasket. It is a blue solution that if it senses carbon dioxide it turns green. A tool that is similar to a turkey baster bulb filled with this solution is put into the overflow tank hole. By squeezing the bulb it picks up air and if the air contains CO2 it turns the water to a different color. Check with a place like PEP Boys or some place that has a garage to see if they have this tool in their shop. It is the easiest, cheapest, and most sure way of checking for a blown head gasket. If you do have a blown head gasket, you will likely have to have the heads resurfaced. A good machine shop will not resurface the head if it is warped more than 10 thousands, because it will just warp again.
Wiki User
∙ 15y ago
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You just replaced your radiator and overflow tank on your 1997 Cadillac Deville Concourse It doesn't overheat but smokes from under the hood What is the problem?
check radiator for small leaks or cooling lines which would most definitely cause it 2 steam when running after awhile
How do you take a radiator cap of a 2000 Oldsmobile silhoutte?
Do not take a radiator cap off. Fill from the overflow tank or you will add air to the cooling system and it will have to be bled off or your engine will overheat.
When the car is running it pumps the coolant out of the overflow tank. It is a 1998 Cadillac Deville 4.6L engine. Do I have a bad radiator cap What are the symptoms of a bad radiator cap.?
your radiator clogged up.cheaper to get a new radiator. nothing to do with the radiator cap.
Can an overflow jug cause a car to overheat?
One situation that the overflow jug would cause an overheat condition would be if the hose and/or connectors were plugged up or blocked. NOTE: before disconnecting anything to do with the radiator, ensure the engine is COOL! The cooling system operates under significant pressure.
What would cause a 1997 Dodge Intrepid to continue to overheat after replacing the water pump and thermometer?
it is possible your radiator is clogged
After replacing radiator hose do you put coolant in the radiator and the overflow bottle or just the bottle?
With the engine cold, put it in the radiator just to be sure there is no air gap. Run it for a short time until it gets warm and coolant begins to circulate. Then install the radiator cap and put coolant in the overflow to the coolant level line.
Why does a 2001 XLT overheat when ac is on?
I was having the same problem with my 99 explorer. What I discovered was that the overflow tank for the radiator was empty and was causing a false reading by the temp gauge.
What would cause a 94 cadillac sts to overheat and coolant to be low after a short distance?
Blown head gasket or bad radiator cap
What causes a 94 Cadillac STS to overheat and coolant to be low?
Check the upper and lower radiator hoses at the engine. They have a tendency to expand and split.
What can cause a 2000 Chey Venture to overheat after replacing the radiator the thermostat and the radiator cap?
It probley has an AIR pocket in the cooling system. Bleed the air out of the system and make sure it is full of fluid.
Engine overheat when at high speed with ac on.?
Try replacing radiator cap Is cooling fan working? Make sure radiator is not plugged or dirty Check coolant level water pump
Thermostat stuck will it cause antifreeze to come out the overflow hose of the heater core?
The heater core has no overflow hose. Cooling system is a closed loop system and the only overflow hose is the one going from the radiator cap to the reservoir. A thermostat that is stuck closed will cause the engine to overheat. Drain and flush the radiator, replace the thermostat, install a 50/50 mix of antifreeze and distilled water, bleed air from the system. You may also need to replace the radiator cap. Be sure and replace these parts with OEM parts.The heater core has no overflow hose. Cooling system is a closed loop system and the only overflow hose is the one going from the radiator cap to the reservoir. A thermostat that is stuck closed will cause the engine to overheat. Drain and flush the radiator, replace the thermostat, install a 50/50 mix of antifreeze and distilled water, bleed air from the system. You may also need to replace the radiator cap. Be sure and replace these parts with OEM parts.
