Antifreeze/Coolant evaporating/burning off?
 

I put the recommended amount of anti-freeze into the truck, and about 2-4k miles later, it's just all the old brown junk left.

I notice no leakage, and the top hose is brand new, although stiff and jerry rigged.

But I had this problem prior to the new hose installation.

I've tried the 100% mix and 50/50, while the 100% seems to last a bit longer, it is still being drunk by the gremlin.


Any ideas?

Are you saying the level drops in 2-4k miles?

If so one of the following:
- it's getting burned in the combustion chamber because of a intake or head gasket leak.
- It's leaking down the outside of the engine and evaporating before hitting the ground. Could be intake, head, water pump, or hose leak.
- Could be a bad rad cap causing it to just evaporate.

Rich

^X2 rich hit the nail on the head.

Will look into those, ty.

Yeah...Id have the headgasket checked...Mechanics can do that in like 5 minutes and if they are nice, wont charge anything.