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Re: fixing a heater core
You can remove the core and solder it yourself or you can have a radiator shop do it unless the rest of the core is not damaged this is an easy fix and the cost will be minimal. please rate this thanks
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Remove the firewall rubber grommet to the broken pipe in the firewall. Clean the remaining end of the broken pipe real good, apply a drop of oil on it, then push the heater hose back in and tighten the hose clamp back on. You will need a 12 point box end wrench and it will be slow due to limited access. It should work.
simply follow the hoses from the firewall, these go to the heater core. disconnect both hoses at the firewall and connect them to each other with a pipe nipple. Or remove one of these hoses and loop the remaining hose back to the fitting on the engine where the other hose was removed.
You can TRY eponxy .(Have to let it settle and get hard for a day or so.) This is a low pressure area10 - 15 psi. it may work NO guarantees. I've done it once that was on a 2000. . This car is still on the road. I have not touched the heater hoses since. Good luck
RKmastertech is incorrect. That plastic fitting is seperate from the aluminum heater core and can be removed by means of a special quick disconnect tool, like OTC 6046. Rock auto has the fitting for $5 plus shipping, just for a reference.
Unfortunately the heater core must be replaced because the nipple is soldered to the heater core and access to the core for resoldering is not possible unless the heater core is remove and so if you go to that kind of trouble you should just replace the core with a new one rather than doing the repair and risking a future leak after reinstalling.
You need to disconnect the two heater hoses going into the heater core. These hoses will go from the thermostat housing or the water pump to the firewall of the vehicle. You can just disconnect the two hoses from the firewall connection and place a nipple in between the two hoses using good hose clamps to connect the two hoses. That is all you need to do to bypass the heater. Good luck.