98 Ford Expedition - Intermittent Heat - Head Gasket?
My Expy started having intermittent issues with temperature gauge
sometimes showing cold when I knew the engine was warmed up (and no
heat). I thought it was a bad thermostat and took it to the shop. They ran a
test (gasses in the cooling system or something) and said 100% that it's a
head gasket. Does that sound right?