The oil is ok....( no milky substance) both top n bottom radiator hose has pressure.... just took out thermostat..... overheats when driving recovers at idle...... im thinkin i need a new radiator....... nio anticoolant loss.....
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Re: overheating 1999 cadillac deville
THIS SOUNDS CRAZY BUT, ON SOME OF THE OLD SCHOOL CARS, THEY HAVE A CLUCH FAN.. AND IF ITS BAD, THE CAR WILL OVERHEAT WHEN DRIVING AND COOL DOWN AT IDLE.. I DONT THINK THE CADY HAS A CLUTCH FAN, BUT I BET ITS IN THE FAN.. GOOD LUCK KEITH..
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normaly the bottom hose block bottom radiator out let with a rag so water will flow through the motor then unplug bottom out let jam garden hose in outlet with a rag remove top hose & reverse flush from bottom 2 top ps.make sure 2 remove all rags when finished
Before you do anything, have the engine teperature checked out using an accurate thermometer or thermocouple. Gauges are not always reliable and at best are only ever an approximate indicator. If the engine is actually overheating, check your thermostat first. Next check if the top radiator hose is hot and the bottom hose cold. If this is the case, your radiator may require flushing. The bottom hose should be cooler that the top, but not cold.
Overheating can be numerous things: Fans not working, water pump, thermostat, overflow cap, and the list keeps going. When the engine is running and heats ups, feel the heat of the top hose, if the hose isn't hot, the thermostat is most likely stuck open and needs replaced. If it is hot we know you have circulation. The cap on the expansion tank may be defective, if it can't hold the pressure of the water, it will release at the overflow cap if the cap is bad. Also check the coolant level.
FIRST OF ALL ADD COOLANT TO RADIATOR ITS LOW.THATS WHY CAR IS OVERHEATING CHECK FOR LEAKING HOSES OR RADIATOR. ALSO YOU NEED TO ADD OIL TO BRING OIL LEVEL TO CORRECT LEVEL.HAVE THE ALTERNATOR REPLACE.BECAUSE ITS NOT CHARGING CAR BATTERY.CAUSING THE CAR NOT TO START.
hello i have a 1998 cadillac deville course. an i been having the same over heating problems with mine i been taking it to mechanics an no one seems to know even the caddy dealship its overheating i checked the termostat water pump radiator all hoses was wondring could you tell me what you did or what you are doing to fix your problems my email is firstname.lastname@example.org thank you very much