Rusty antifreeze bottle and sight smell of gas in backflow bottle
I have a 96 ford windstar the motor keeps overheating so we did a coolent flush and a new therm. well a week later the coolet is rusty and and has a order of gas in the bottle.the oil looks great no coolent or water in it the motor runs so quiet you can not even hear it .
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is the water pump working and circulating the antifreeze. if it is working, I would flush out the system and replace the thermostat before refilling system. you can buy radiator flush at any auto parts store. you can back flush system through radiator. just follow directions on back of flush bottle. have a good one!!
Seeral things possible, if your water is rust colored it is way past needed changing causing it to overheat as the coolant is designed to keep the car from overheating in summer and freezing in winter. Another thing is if you have recently added fluid and put Dex cool (is orange) in a vehicle thats not designed to run it you can also get overheating and have heard stories of it plugging up lines in vehicles. Try smelling it (pull the radiator cap/overflow bottle ) "DO NOT DO THIS WHEN THE CAR IS HOT" Does it smell burned or have a sweet pleasant smell. If burnt smell its been in too long and needs to be flushed and refilled. If sweet smell may be Dex cool and make sure your car can run on it (call auto parts store Auto Zone etc..) if not designed to run on it you still need to flush and refill with correct antifreeze 50/50 mix should be green. 3 is all checks out look at your Tstat it could be sticking and if sticking (not opening all the way) will cause your overheating issue. Could also be water pump and bad head gasket at worse case scenario. have it checked by a reputable radiator/repair shop
The cooling system may need to be serviced which is one of the things that is never done. The orange antifreeze has a life of 5 years and 150,000 miles and if it has never been flushed out, there may some crystal formation causing a restricted flow of antifreeze through the system. Try flushing out the cooling system with Preston radiator flush, use the dry power flush rather then the one from the bottle. Follow the instructions and replace the antifreeze with a 50/50 (water/antifreeze) mix, if you not sure how to mix it. You can buy them premixed 50/50. Too much water will boil over and too much antifreeze will gel up causing overheating. If you like you can replace the thermostat too, but that's not that easy on the 3.4 liter engines. If you go to Auto Zone you can pick up the antifreeze, radiator flush, and thermostat with the step by step instructions needed to get the job done. Keep me posted, be glad to answer any other questions you may have and good luck friend.
first check if your radiador fan turn on if not that can be the problem if they turn on then you need to ge t the radiador flush and use a good antifreeze so you wont have that rusty water don't use water thats what creats the rust in the system good luck
Open the petcock valve on the bottom of the radiator. Start the vehicle and turn the heater on high. Remove the radiator cap and insert a hose with fresh water running. continue this for as long as it takes the water coming out of the petcock to become clear. It could take an hour or more. Once the water is clear, shut the vehicle off, and let the rest of the water drain out of the petcock valve.
Restart the vehicle and add fresh coolant. Leave the radiator cap off and let the vehicle run until the coolant stays at the top of where the radiator cap goes, this will ensure you have bled all of the air out of the cooling system and there is enough coolant in the system. Replace the cap and you are good to go.