RADIATOR PROBLEMS
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Solder Bloom – Solder corrosion caused by degradation of rust and leak inhibitors in antifreeze. Tube-to-header joints are weakened, and corrosion can restrict coolant flow. | Internal Deposits – Rust and leak inhibitors can form solids that collect in the cooling system and restrict flow. |
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Fin Deterioration – A chemical deterioration of the fins most often caused by road salt or sea water. | Fin Bond Failure – A loss of solder bond between fins and tubes. Fins are loose in core causing loss of heat transfer and reducing radiator strength. |
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Tube-To-Header Leaks – Failure of the solder joint results in coolant loss. | Leaky Tank-To-Header Seam – Solder joint failure or a cracked header is generally the result of pressure-cycle fatigue. |
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Blown Tank-To-Header Seam – An indication that the radiator has been subjected to extreme pressures resulting from exhaust leaking into the cooling system. | Loose Side Piece – Can lead to flexing of the core and radiator tube failure. |
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Leaky Oil Cooler – Coolant shows traces of oil. Transmission or engine damage can result from the mixing of coolant with transmission fluid or engine oil. | Leaky Inlet/Outlet Fitting – Leaks in this area can be caused by fatigue or solder joint corrosion. |
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Fan Damage – A minor collision or a failed water pump can result in radiator damage. | Over Pressurization – Excessive pressure in the radiator caused by a defective pressure cap or engine exhaust leak can destroy the radiator. |
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Electrolysis – Stray electrical current can cause excessive corrosion of metal components. | Electrolysis – Stray electrical current can cause an electrochemical reaction that will produce voids in tubes. |
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Cracked Plastic Tanks – High stress in the radiator can cause premature plastic tank failure. | Steam Erosion – Steam can break down the plastic tank which will produce thinning and, ultimately, holes in the plastic tank. Frequently, white deposits are also found. |