1990 Ford Thunderbird Service and Repair Manual

This factory service and repair manual for the 1990 Ford Thunderbird is built around the 3.8L OHV V6 in its two forms, naturally aspirated and supercharged, both gasoline. The one body style documented is the two-door coupe, offered in four trims: Base, Equipado, LX and Super. Because the supercharged engine carries its own specifications, the manual keeps its procedures, torque values, wiring diagrams and diagnostics distinct from those of the naturally aspirated V6, and trim-level equipment differences are noted where they affect a job.

Engines covered

• 3.8L V6 (232 cu in) — OHV, naturally aspirated, gasoline
• 3.8L V6 (232 cu in) — OHV, supercharged, gasoline

Body styles covered

• 2-door coupe

Trims covered

• Base
• Equipado
• LX
• Super

Known issues on the 1990 Thunderbird. Four recalls dot the 1990 Thunderbird's record. One concerns the nuts holding the windshield wiper motor to its module, which may loosen and change the wipe pattern or jam the wipers. Another covers battery-to-starter cables longer than specified that can rub on the engine damper pulley until the insulation wears through and shorts. A third is an ignition switch that can short internally and overheat. Owners have filed 167 complaints with NHTSA, led by service brakes at 37, the electrical system at 36 and seat belts at 26. The brake, wiring and seat belt procedures in this manual apply directly to those reports.