28
Jan
Our Bars Leaks Liquid Aluminum Heater Core Stop Leak is a one-of-a-kind solution that is guaranteed to safely and easily seal leaks in plastic aluminum and metal radiators heater cores gaskets and freeze plugs. Since it is only a small leak in the heater core we recommend simply sealing that leak and leaving your heater core in place.
Install the new heater core back into the heater box plenum and clamp the new heater core into place.
How to fix heater core. Symptoms of a failed heater core 1. Have the air conditioning system discharged by a qualified AC shop. It is under high pressure and a shop can safely.
Ensure the engine and cooling system are entirely cool before proceeding. Disconnect the negative battery terminal. Set a catch pan.
Fixing a leaking heater core will always be much easier than replacing one. Since it is only a small leak in the heater core we recommend simply sealing that leak and leaving your heater core in place. You can do this by simply by adding BlueDevil Pour-N-Go to your vehicles radiator when your vehicle is cold.
How to Fix a Heater Core Leak Step 1. Add a can of radiator stop-leak additive to the radiator see Resources. Run the engine for a few minutes to distribute the fluid throughout the system.
Disconnect the hoses attached to the heater core if the stop-leak additive didnt fix the. Insert an airline or water hose into the outlet hose. If you have an air compressor you can use an airline to push out the remaining coolant and grime within the heater core.
If not you can use a garden hose for the same purposes. Place the airline or hose in the outlet hose from the heater core. If you dont have the time or the money to repair your heater core immediately theres a possible short-term solution.
You can disconnect both heater core hoses where they enter the heater core and then connect them together using a coupler. This effectively bypasses the heater core and usually stops the leaking. This process typically involves boiling the core in a large tank for several hours passing a rod through the tubes to clear them of blockage and then soldering the tubes wherever a heater core leak has developed.
Copper heater cores can usually be repaired in this manner but aluminum cores typically can not. This is usually the recommended method of repair since additives designed to plug leaks from the inside can cause blockages elsewhere in the system and lead to overheating. While you may be getting hot coolantantifreeze into the heater core the heater fan the part that actually blows the heat into the cabin can break or suffer an electrical short.
Looking to stop a heater core leak dead in its tracks. We have the right solution for you. Our Bars Leaks Liquid Aluminum Heater Core Stop Leak is a one-of-a-kind solution that is guaranteed to safely and easily seal leaks in plastic aluminum and metal radiators heater cores gaskets and freeze plugs.
Get a garden hose that has a built-in sprayer insert the sprayers tip against the end of the heater hose then turn on the garden hose to flush the heater hose. This will cause dirty water to rush out the other end. After a few flushes turn to the other outlet and flush it too.
If youre looking for a heater core leak quick fix then youre in luck K-Seal will fix most leaks in the heater core. When using K-Seal for this type of repair make sure that the heater is switched to maximum so that it flows through the pipes and reaches the leak permanently sealing it. Shift air ducts orand other components away from the casinghousing of the heater.
Finally remove the heater core from its casinghousing. Remove any fasteners or screws to gain free access to the heater core itself. Take the old heater core out and simply insert and fasten the replacement.
Check the temperature of both the heater core inlet and outlet hoses with the engine at operating temperature and the heater on. If the outlet hose is significantly cooler than the inlet hose the heater core is likely faulty. Be careful when you do this as the hoses may be hot.
Its a good idea to use an infrared thermometer. Fixing this can be as simple as a fluid flush. Youll want to flush it several times with water to get all the sediment and build-up out of the heater core or blockage area.
Disconnect the heater hoses from the heater core. Remove the 2 heater pipes-to-heater core screws and clips. Then disconnect the heater pipes from the heater core.
Remove the heater core O-rings and discard them. Remove the heater core from the heater housing. Install the new heater core back into the heater box plenum and clamp the new heater core into place.
Reassemble heater plenum and reinstall into vehicle reinstall blower motor wiring screws vacuum lines and control cables. Carefully install the dashboard back into position and re-attach tie bars and mounts.