Is it okay if I drain my coolant to change my hoses then fill rad back up but don't start the car for a few weeks?

 

why would it NOT be ok?? lol

 

For the sake of inhibiting rust, I'd say you should cycle the coolant and burp the cooling system before letting the car sit for a long period of time. Otherwise, go ahead and fill what you can with a 50/50 solution (something's better than nothing) and when you're ready to start the car again, run a radiator flush treatment (i.e., Prestone Flush -n- Fill) through the system, then rinse and refill. If you don't use pre-mixed coolant when you refill, be sure to use distilled water with the new coolant. That should get rid of any surface rust or contamination that accrues on the engine surfaces that aren't protected by the rust inhibitors in the coolant while the car's just sitting there.

 

+1


water droplets that are inside the engine/waterpump/ect that get exposed to open air for a prolonged period, may lead to corrosion.

 

Thank you, Ill do that.