i seem to never have or be able to hold radiator fluid in the jug . is that a problem ? i can open the radiator cap and see fluid up to there so i will fill the jug up to cold , later the jug is always empty . NO puddle of coolant anywhere and i cant see where it goes , any sugestions ???

is there supposed to be fluid in there once truck is hot and then when it cools down goes back into radiator ?anything will help thanks guys

 

if it's not leaking there is only one place other than the radiator for it to go. I would be checking your oil sounds like a leaking head gasket.

 

oil is all good . im not loosing any out of the radiator , i never have to add , just was thinking that there should be some in the jug at sometime ??

 

If the radiator is full, you fill the jug to cold, and then it's empty with nothing leaking on the ground 1 of 2 things happened. Either you had air in your cooling system or it going into the oil. How many times have you filled the jug to cold and then it's empy with none leaking on the ground?

 

It should be at least 1/2 way full when cold.

 

im going to try and fill it up again and watch it see what happens . oil is all good have done a few oil changes nothing looks out of the ordinary.

 

Any white smoke out of the exhaust? It doesn't necassarily have to go into the oil for a leaking head gasket, depending where its leaking from it could be burning out of the exhaust. How often are you having to refill? After each trip? Is your water pump leaking while the engine is running? When hot it could be leaking and everything evaporating from the heat before you check it. Look for white residue in the lower fan shroud.

 

thanks i will check that . NO white smoke at all so thats good . just have to find out where it is going , yes after each trip it is gone i will check the pump and keep my eye on this issue !! thanks guys

 

With it disappearing that fast you would have noticed a milkshake in your oil or white smoke out of the tailpipe. Antifreeze leaves a white residue when it dries so keep your eyes peeled for that. With it going missing like that it certainly isn't evaporating, and if its not being mixed with the oil or burnt out the exhaust there's got to be evidence somewhere. These trucks also have crappy degas bottles (rad jug), make sure yours isn't split somewhere at the bottom.