hello honda forum

i have a 1990 honda civic si and my coolant reservoir doesnt refill my radiator, i have put in a new rad, replaced the top and bottom rad hoses, put a new thermostat in and it still wouldnt refill my rad. i tried taking off the reservoir hose and blowing in it and there is no clog or anything in it..... it would be great if you could help me out. thnx

civicivic90

 

I hope you are not trying to fill your radiator by filling the reservoir, because you will be there all day. If you want to fill your radiator and have no air in the system get a 12mm socket and a ratchet you will notice where the Upper rad hose hooks up on the engine there is a bleed screw. Open that up. Then fill your radiator with coolant and water 50/50 mix of course until it comes out of the bleed screw. Close the bleed screw put your cap back on fill the the reservoir to the appropriate mark. You are done....if you don't get the air out of the system your car will idle up and down when it gets warmed up its important to use that bleed screw.