Jump to content

Procedure for flushing heater core?


RustyButTrusty
 Share

Recommended Posts

My heater has only been mildly warm here recently and I believe my heater core needs to be flushed. The input heater hose gets very hot, the output not nearly as much. Do you have to drain all the coolant to take the hoses loose without getting antifreeze everywhere?

Link to comment
Share on other sites

First, did you check your coolant level and radiator cap?

if your coolant is low the bubles go to the core and keep it cold.

If your cap leaks you will get bubbles in your core and get cold.

 

Ok, If that don't work get a reducer fitting from your hardware store and screw it on your garden hose. clamp the core inlet hose to the fitting and unhook the outlet. turn on hose full blast and watch what comes out. Have fun.

Edited by MY1PATH
Link to comment
Share on other sites

Don't forget to 'burp' your cooling system to make sure theres no air in it too. Theres a bleed screw but I prefer the "park on an incline/put the front on jackstands and let it run for a little bit" method

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

×
×
  • Create New...