Clr To Clean Out Heater Core

Same as the outlet hose gently twist and pull the hose off.

Clr to clean out heater core.

Hot coolant that has passed through other parts of the engine is run through the heater core as air is forced past it and into the cabin of the vehicle to heat it. Attach the longer section of tubing to heater core inlet. The heater core is similar to a radiator and is a part of the vehicle s coolant system. Have the other end in the bucket to collect the coolant and sediment that comes out of the heater core.

Radiator flush which is an acid much like clr but which has been tested fairly well in cooling systems. How to s on repair restoration detail and customization of jd. Flushing the heater core can remove these clogs but if it fails to work you may need to have your heater core replaced. A clogged heater core will prevent the coolant from passing through it limiting the amount of heat that can be transferred.

I attached the end of the garden hose back to the inlet side and i let the clr do its thing for about 30 mins. You should know however that if you have a heater core that is plugged it may also be. I pulled the heater core and found it to look very good. And let it sit for a few hours.

Remove calcium lime deposits with old trick itm4x4 is a humble independent mechanical shop. I then poured an entire container of clr into the heater core until it started spilling on the opposite end of the heater core. Recently i heard about the idea about using clr to clean out a radiator so i purchased several bottles of clr and i disconnected the radiator hoses and drained the radiator. And i plugged the bottom radiator hose inlet then i filled the entire radiator with straight clr topped it off with vinegar.

Remove heater core inlet hose.