Radiator want stay full of water or antifreeze has plastic jug on fender weld

If the reservoir is empty, you may want to start out by draining your radiator completely and starting over. there is a petcock valve at the bottom of the radiator. EPA Says you can't drain it onto the ground, but that's your decision. Anyway.....Buy full strength antifreeze. Take a empty gallon jug (could be a gallon milk jug so you can see more easily) and mix one half antifreeze to one half water.Take the cap off the radiator and add it it there.When it is full, put the cap back on the radiator and crank your vehicle to circulate it.Then start adding the antifreeze/ water mixture to the reservoir.As it goes down keep adding until it levels out at the normally hot line on the reservoir. As for the type of antifreeze........it's basically all the same which is Propylene glycol. CAUTION ! DON"T REMOVE THE RADIATOR CAP AFTER THE ENGINE HAS WARMED UP ! Hope this helps.

if you dont see radiator cap on radiator.you pour coolant in the coolant reservoir jug until coolant level stay on full cold mark.when adding coolant to coolant reservoir jug when coolant level stop dropping stay at full cold mark.you have correct amount antifreeze in radiator.

engine running too hot.check coolant level, should be 50/50 antifreeze and water.replace thermostat and radiator pressure cap.check antifreeze level in the radiator,coolant level should be just below radiator cap, add coolant to overflow jug,should alway be at the full cold mark.empty coolant overflow jug will allow air be drawed in the coolant system causing overheating.if overheating happens when coming to a long stop.could have faulty engine coolant temperature sensor or bad coolant fan fuse or relay.

the plastic jug is an overflow container when the vehicle gets warm excess coolant from the radiator flows to it there is a sensor somewhere on the jug or in it for coolant level if it doesnt hold coolant it is most likely cracked as it is only plastic and should be replaced

you need to replace thermostat and radiator cap.look under hood around engine compartment.look for a radiator cap near radiator,add 50/50 antifreeze and water to coolant system to bring up boiling point.pure water will cause engine run hotter because water evaporate away,remove radiator pour coolant in the radiator until coolant stop dropping in the radiator now some vechicle pour coolant in the coolant overflow jug,pour coolant until coolant level stop dropping and the coolant level stay at cold full mark.start engie let idle few minutes, watch coolant level in radiator if coolant start dropping add more coolant, when coolant level stop dropping put radiator cap back on let engine idle until both top radaitor hose and bottom coolant hose get warm turn off engine wait until it get cool then take a large rag slightly open radiator just a litle at a time to keep from getting scaled.once radiator remove add more coolant if low,put radiator cap back on start the engine let it idle watch the temp gauge if temperature gauge going hot zone stop engine wait until cool then add more coolant,keep doing this until engine stop overheating going into hot zone and coolant level stop dropping,make the coolant overflow jug coolant level stay at full cold mark, dont let jug run empty if so air will get in the coolant system causing engine to overheat.

DID YOU BLEED AIR OUT THE COOLANT SYSTEM.TO BLEED COOLANT SYSTEM, FILL THE COOLANT SYSTEM THROUGH THE RESERVOIR TANK OR THE RADIATOR UNTIL THE FULL COLD MARK IS REACHED.BESURE TO USE 50/50 HALF WATER AND ANTIFREEZE.YOU CAN BUY ANTIFREEZE THAT IS ALREADY PREMIX 50/50.AFTER ADDING ANTIFREEZE TO RESERVOIR OR RADIATOR FILL RADIATOR TO FULL MARK OR IF YOU DONT HAVE RADIATOR CAP ON RADIATOR POUR ANTIFREEZE IN THE OVERFLOW JUG UNTIL COOLANT LEVEL STAY THE FULL COLD MARK.WAIT AWHILE UNTIL COOLANT LEVEL STOP DROPPING.NOW INSTALL THE RADIATOR OR OVER FLOW JUG CAP.START THE ENGINE AND ALLOW IT TO RUN UNTIL NORMAL OPERATING TEMPERATURE IS REACHED AND THE UPPER RADIATOR HOSE BECOME HOT.STOP THE ENGINE AND OBSERVE THE COOLANT LEVEL IN THE OVERFLOW JUG. THE COOLANT LEVEL SHOULD BE AT THE FULL HOT LINE.ALLOW THE ENGINE TO COOL UNTIL THE AMBIENT TEMPERATURE IS REACHED THEN CHECK THE COOLANT LEVEL IT SHOULD BE AT OR ABOVE THE FULL COLD LINE.ADD MORE COOLANT IF NECESSARY. WARNING BECAREFUL WHEN OPEN THE RADIATOR CAP OR JUG OVER FLOW CAP.USE A LARGE RAG OVER THE RADIATOR CAP TO KEEP FROM GETTING SCALDED.OPEN RADIATOR CAP A LITTLE AT A TIME TO KEEP FROM GETTING SCALDED.WAIT UNTIL ENGINE COOL DOWN BEFORE OPENING RADIATOR CAP OR OVERFLOW JUG CAP.WEAR SAFETY GLASSES.

CHECK ENGINE COOLANT LEVEL.MAKE SURE COOLANT OVER FLOW JUG HAS COOLANT IN FULL COLD MARK.IF COOLANT OVER FLOW JUG IS EMPTY RADIATOR GOT TO BE LOW ON COOLANT POUR COOLANT IN THE OVER FLOW UNTIL COOLANT LEVEL STAY AT THE COLD FULL MARK.SEE IF RADIATOR DONT HAVE A RADIATOR CAP YOU HAVE TO POUR COOLANT IN THE OVER FLOW JUG COOLANT WILL FLOW DOWN IN RADIATOR UNTIL COOLANT LEVEL STOP AT FULL COLD MARK.IF COOLANT LEVEL OKAY.YOUR THERMOSTAT NEED CHANGING ALSO RADIATOR PRESSURE CAP.HAVE RADIATOR FLUSHED OUT.HAVE ENGINE BLOCK FLUSHED OUT.CHECK ENGINE OIL IF OIL LOOK LIKE MILK SHAKE ON OIL DIP STICK YOU HAVE LEAKING HEAD GASKET THAT WILL CAUSE ENGINE OVER HEAT WHILE CAR IN MOTION.CHECK WATER PUMP MAKE SURE ITS WEEP HOLE NOT LEAKING ANTIFREEZE IF SO WATER PUMP NEED REPLACING.

If the engine is cold the pressure cap should be near the passenger side of the intake. Remove the cap, looks like a radiator cap, and add antifreeze till its full. Then fill the plastic jug that is marked engine coolant.

SMALL COOLANT HOSES ON RADIATOR OVERFLOW JUG LOCATION. BACK SMALL HOSE ON OVERFLOW JUG GOES TO THERMOSTAT HOUSING THE SMALL FRONT HOSE ON OVER FLOW JUG GOES TO RADIATOR.LOOK AT TOP RADIATOR ON PASSENGER SIDE YOU WILL SEE SMALL TUBE ON RADIATOR THATS WHERE OTHER SMALL HOSE GOES.

The plastic jug (Coolant Recovery Reservoir) could have a hairline crack in it or check the small hose that goes from the Radiator neck (Opening) to the Reservior.

The Thermostat would not be an issue in this case.