Can I solder aluminum radiator to repair it

No, aluminum radiators cannot be soldered to repair them.

The engine cooling radiator solder will fail due to high temperature, corrosive coolant, and vapor pressure. It will eventually cost you an engine rebuild if the engine overheats due to coolant loss, which will cost you several thousand dollars. DO NOT BE CHEAP AND DO NOT SAVE MONEY ON A RADIATOR.

Additionally, leaks due to an impact have probably affected the plastic parts of the radiator, or the seal between plastic and aluminum, and solder fix will not actually fix the leak.

Modern car cooling systems are hermetically sealed. They are not supposed to operate with holes or cracks in the radiator.


Attempting to repair the A/C radiator will never work due to the high pressure during A/C operation on a hot summer (the solder joint will work just until that worst moment). A failed solder fix will vent the expensive and environmentally damaging refrigerant (costing you $50 or more).




More details here.

˅˅˅ Additional valuable information is available at one of the links below: ˅˅˅


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Page last modified 12-Apr-12 22:03:36 EDT
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