Car Problem Reports

Ford E-150 Coolant Leakage from Heater Core, Possible Leakage onto Passenger Side Foot Well

Ford E-150 Problem
26 Reports
Me Too

Model Years Affected: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010

Average Mileage: 102,749 mi (52,000 mi - 154,000 mi)


Electrolysis can cause repeated failures of the heater core and radiator. The diagnosing technician should check for voltage present in the coolant, with the battery disconnected, because electrical current in the coolant causes electrolysis. Corroded or deteriorated parts should be replaced, and the coolant should be flushed. Ground straps can be added to help prevent future corrosion of components.

  • , , 154,000 mi

    Leaking coolant out from tire well drivers side does any one know how to bypass rear heater lines

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  • , , 52,000 mi

    Water, antifreeze is leaking out when i drive. When i stop steam is coming from the rear passenger side behind the tire somewhere. I have to put in 3 gallons of water every 8 miles or so.Over heats. But my 1990 E150 van starts right up even on the coldest days.

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  • , , 79,000 mi

    replaced heater core two years ago, now leaking again

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  • , , 125,000 mi

    Leaking heater core

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