I was driving on the traffic condition, suddenly I hear a puff sound, and saw antifreeze leaks from the radiator. I checked all the fuse relay, and it appear to be fine. I put two new fuse relay on the heating/ac clutch and check to make sure fuse was not burn out. I have replaced the thermostats, however, the temperature gage will go up high until I pull over an turn off the engine for about five to ten minutes, then the temperature go back to normal. I opened the hood up and notice that the radiator cap become loose despite of tighten it and the leak is coming out of the cap and the little hose. I was wondering if anyone has idea about what could be wrong with the van. Huy
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Unplug the fan on sensor. It should have one green wire and one black wire. Use a paper clip and jump the two wires. Turn the key to the run position, the engine does not need to be running. Does the fan come on? If not check the green wire for 12 volts and the black wire for ground. If there is no ground than run a new ground wire. If the is no power check the heater/air conditioning fuse in the under dash fuse block. If there is power and ground make sure both the cooling fan fuses are good and both the cooling fan relays are good.
OVERHEATING CAN BE CAUSED BY LOW COOLANT,TOU COULD HAVE TOO MUCH WATER IN COOLANT SYSTEM YOU NEED 50/ 50 MIXTURE OF ANTIFREEZE AND WATER TO RAISE BOILING POINT.IF COOLANT OKAY, IF VECHICLE OVERHEATING DURING SHORT DRIVE COULD HAVE BAD THERMOSTAT AND FAULTY RADIATOR PRESSURE COOLANT CAP. IF THERMOSTAT OKAY CHECK WATER PUMP IF WATER PUMP WEEP HOLE LEAKING.YOU NEED NEW WATER PUMP.IF VECHICLE OVERHEATING WHILE VECHICLE SITTING IN A LONG TRAFFIC LINE.CHECK TO SEE IF COOLANT FANS RUNNING IF NOT CHECK COOLING FANS FUSE AND RELAYS.IF ALL IS GOOD. YOU COULD HAVE ENGINE COOLANT TEMPERATURE SENSOR CODE SCAN FOR FAULTY PCM. HOT WIRE TO SEE IF COOLANT FANS WORK IF NO FAN MOTOR BAD IF YES COOLANT FANS WHEN HOT WIRED. FAULT COULD BE IN THE COOLANT FANS WIRES MAKE COOLANT FANS RECEIVING POWER IF NOT YOU HAVE BLOWED FUSE OR BAD RELAYS.
White smoke means water/antifreeze entering the combustion chamber(s) or intake passages. Suspect a gasket leak somewhere (tighten all intake manifold nuts and bolts). Check all radiator and heater hoses for leakage and hose condition.
first, remember that any leak will run down...There is nothing near your muffler that contains antifreeze, therefore, what ever is leaking has been blown back there while driving. Open up the hood and look to see where leak is originating. check all hoses, hose connections, radiator, rug under heater in the cab and everything associated with cooling system. You will see antifreeze coming out somewhere. Once you locate the leak, I can help you deal with it. Do not open the radiator when engine is hot! Do not drive with low coolant condition! This is not a solution...yet...I'ts the beginning of one!
Your cooling system is what keeps your car from having a meltdown. If you didn't have some way to cool things off, your engine would turn into a solid block of useless metal in no time flat. All of the parts that make up the cooling system have one goal of moving coolant around the engine so it can absorb and dissipate heat. The basic system is made up of the following components:
radiator top hose
radiator bottom hose
from your problem u stated
Checking for the problem I saw some a lot of antifreeze on the bottom of my engine covering or whatever it is (not the hood).
looking at the parts involved its probably not burning in the engine unless the car has overheated to much, it sounds likes its one of ur delivery or return hoses from the motor that is leaking. do a close attention to detail to your hoses and components related to the cooling system, u may not see the leak from the top since gravity will draw the fluid down