Two problems related to engine head gasket leaking have been reported for the 1996 Ford Thunderbird. The most recently reported issues are listed below.
Head gasket leaking - car just turned 4 - Ford refuses to cover under recall.
Engine check light was illuminating on dashboard. Contacted dealer, dealer has determined that head gasket was leaking fluids onto oxygen sensor, causing engine check light to illuminate. Also, note head gasket needed to be replaced.