Wrote off coolant leaks as a head gasket until a $3 UV flashlight from Harbor Freight showed me the truth

Viola Moore · 2026-10-19T06:15:03.821904+00:00

Turned out it was just a cracked plastic thermostat housing on my 2001 Civic, not the head gasket I was dreading at 180k miles. Anyone else get saved from a big repair by one cheap tool?

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Wrote off coolant leaks as a head gasket until a $3 UV flashlight from Harbor Freight showed me the truth | Cars Under 5k - Rigidtalk