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Re: Heater core leaking
Some heater cores are poorly manufactured. it is possible some damage occurred at the time of installation. incorrect coolant could cause a premature failure(would probably take more than 6 months). also the heater hoses get stuck to the core tubes, and during replacement the hoses often get cut and shortened causing tension on the fittings, or plastic core tanks.
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This is a general idea of how your system works, your heater core is basically a secondary system, your system needs aprox 14lbs of pressure to operate properly, if there is a blockage, your radiator cap is faulty or you are low on coolant you will not get any flow to your heater core thus will not get any heat and could damage your engine, you can get your system tested, and usually if you have a bad water pump you will leak coolant through a small hole in the bottom of the water pump. It is designed to do this so you know it is going bad before you get complete failure however it does not always happen. I hope this helps you
If it is necessary to remove the heater assembly, the cooling system must be drained before removing the heater core.
When a heater core leaks, a new heater core is installed or the old one repaired. Heater Housing
The heater housing is usually under the dash and must be removed to gain access to the heater core.
Procedures for replacing the heater core vary with the year, make, and model of car. It threfore necessary to consult the manufacturer's repair manuals for the proper procedure for replacement.
The heater housing is disassembled to get to the heater core.
Remove the access panels(s) or the split heater/air conditioning case to gain acess to the heater core.
Remove the heater coolant hoses.
Remove the cable and/or vacuum control lines (if equipped).
Remove the heater core securing brackets and/or clamps.
Lift the core from the case. Do not use force. Take care not to damage the fins of the heater core when removing.
To reinstall the heater core, reverse the removal steps.
When the heater core leaks and must be repaired or replaced, it is a very difficult and time-consuming job primarily because of the core's location deep within the firewall of the car. For this reason always leak test a replacement heater core before installation.
The heater core is leaking,this is what fills with coolant,and heats up from the engine,and the blower pushes the warm air from the heater core into the cab.The garage would be the best bet to replace the heater core for you.
before you think it is your heater core try replacing your thermostat or flushing your system your heater core could be clogged feel the two hoses going into the heater core at the firewall they both should be hot
As with all vehicles it seems the first part that they build around is the heater core. It is under the dash above the floor housed in a black plastic sealed box. Sealed with goop. Locate that box and start removing everything around it that is peventing taking the cover off. Of course disconnect the heater hoses under the hood a thefirewall.