Almost every 3 hours of driving I need to add about 1 gallon of water to the radiator. The temp gauge goes real hot to show it needs water.
I do not see any leaks and no steam. Do you have any suggestions? Thanks. David
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Don't know the exact amount but around 2-2 and a half gallon. Do this use one gallon straight antifreeze and one gallon water run engine for a few minutes then turn off. Check level and top off radiator. Add appropriate level to side tank
check the radiator censor making sure that the wires for this have not come off is there any fluid on the road when its been left for a few hours normally a car loses water any way may be half a pint a month or so this is normall check hoses for splits before forking out for a new water pump
Absolutely no idea but the brown sludge residue is caused by the fact that it has been run with no antifreeze causing internal corrosion of the engine ,,now the radiator that you obviously bought second hand could be the problem ,drain cooling system and flush then add some caustic soda about half a cup and add to a cold radiator then top up with water and run engine for about half hour then flush again in all directions using the heater pipes ,refill with water and try it and if its ok add the 50% antifreeze if its not ok then its a head gasket new thermostat and possibly a NEW radiator
If you are draining your radiator, or just need to add some, there are a couple of options. You can either buy antifreeze in a 50/50 premixed solution, or purchase one gallon of antifreeze and 1 gallon of distilled water (less than $1.00 at your local grocery store) and mix equaly in another container that way you have a proper mixture in your radiator. The 50/50 mixture comes in an orange color and the full strength comes in the traditional green color.
If you absolutely need
to drive the van without having it serviced ensure your coolant/water is topped
off prior to setting out. Make sure you have LOTS of water on hand to top
it off if needed and keep a very close eye on your temperature gauge. You
should also stop every few hours even if the temperature gauge stays in the
"normal" range to ensure its operating at the correct temperature.
There could be a few things wrong with the van, but damage to the
radiator or cracked hoses could be likely culprits.
That being said I wouldn't recommend any long trips before
having this issue fixed.
i do not know exactly but that size vehicle usually holds almost two gallons, fill it up, put the cap on the radiator, run the vehicle until the temp guage is at normal operating temp, then turn the vehicle off. after about a 15 min wait, use a rag and take the radiator cap off slowly and make sure there isn't any pressure behind it. after removing, top off the radiator again and fill the overflow tank to the max level. this should get all the air out and get you on the road again. check again everytime you get gas for a couple times making sure that the level is good.
Let's don't say that it is the head gasket yet. There is a heater core that could be bad. First, replace the t'stat. When putting water/ antifreeze back into the car. Add the water to the outgoing hose of the radiator that feeds into the engine. This will insure you get water into the engine. Of course you will still add water to the radiator itself. Let the engine run while you are adding water. It won't overheat while you are doing this. If you do have a blown headgasket, you will have water in your oil. Does the gauge go to the red at low RPMs only? Lt me know what you find out.