A 1989 Ford F-150 owner replaced a cracked thermostat housing and flushed the cooling system, stopping the external coolant leak, but the truck still has a damaged head gasket and cylinder head from prior overheating.
The thermostat housing had cracked after the owner overtightened a nut following a gasket change; the new housing, gasket and cooling-system flush have eliminated the external leak.
A failed water pump had earlier caused overheating that damaged the head and gasket, and because the owner lacks funds, time and skills for a full head repair, they purchased BlueDevil head-gasket sealer as an alternative.
They will test BlueDevil in the Ford F-150; the sealer contains sodium silicate intended to flow into leaks and solidify under heat and pressure, while a full head job remains the proper fix.
This report is based on information originally published by The Autopian.
Read the full article at The Autopian.
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