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Re: I have a 2003 kaw zx6r that is overheating. I filled...
Water only will not work as the coolant temperature goes above the boiling point, you need a misture of half and half water and antifreeze and a good rad cap
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You presumably filled the cooling system before going for the test drive. You say there is no leaks yet there was room for more antifreeze.
If this is true the room for more antifreeze must have been created by the overheating and probably overheating was a gross understatement, boiling perhaps - or because the head gasket is failing or failed.
Severe overheating can have far reaching effects from burning away the cylinder lubrication and robbing an engine of compression to softening valve springs and piston rings. Assessing the damage caused by overheating can be a lengthy process - you might be lucky or you might not.
putting water in a radiator will not work... water boils away quickly. You need to put antifreeze in it instead. If you are not sure how to do this ask a trusted friend or reliable mechanic
Your radiator fan is probably failed. Pop open hood, watch temp rise, once past "normal " level teh fan should turn on. If not, you need to trouble shoot the rad fan. There should be heavy duty fuses and relays under the hood in an electrical distribution box. You should consult the owners manual or chart on the box lid. Of course the fan maybe bad itself. You can also try - turn on the AC, this will activate the 2nd (booster) fan, and should help prevent serious overheating but wont fix the underlying problem.
Good luck
SOUND LIKE BAD THERMOSTAT REPLACE THERMOSTAT AND RADIATOR PRESSURE CAP..BUT YOU NEED TO MIX 50/50 MIXTURE OF ANTIFREEZE AND WATER IN THE COOLING SYSTEM TO RAISE BOILING TO KEEP CAR FROM OVERHEATING.
Have your belt(s) checked for tightness, have your water pump checked, replace the thermostat and ALWAYS keep enough antifreeze in the system to protect it to 20° below zero. It is also anti-boil.
bleed air out cooling system. put half antifreeze and half water .if you got too much water .it willl cause engine to over heat. antifreeze raise boiling point .220 degrees it wont boil away . water will evaporate 212 degrees.it will boil away .causing low coolant problems and over heating.
One of the common things that gets missed at times is the radiator is down in cooling antifreeze. The car will act as normal during the warm up cycle and then the temperature guage will rise and then it will slowly come back down as the thermostat opens and/or the electric cooling fans come on. In actuality the engine is overheating, but it is not boiling over. The level of abtifreeze is at just the right level of lowness that you experience this phenomenon. After the engine cools off , (DO NOT REMOVE WHEN HOT - YOU CAN GET SCALDED WITH BOILING WATER/ANTIFREEZE)), remove the radiator cap and check the level within the radiator and also the antifreeze reservoir level. You can buy a 50-50 mix of antifreeze and water that is ready to put into the radiator. If the level in both the radiator and reservoir are correct, you may have a bad thermostat or some other problem.
Bob - 2003 Nissan Sentra SE-R SPEC V
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