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1991 Ford Thunderbird 5.0L Excessive Emissions
Posted to Ford Driveability on 11/5/2001 2 Replies

This car came in for a emission fail and we found that the cat will pass fine in the shop. We tested data and found that the fuel trim was always positive, we also found a week o2 a sticking iac and a dirty fuel system. After replacement af both o2s and the ia...

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car Vehicle Data

1991 Ford Thunderbird

VIN 1FAPP60T3M
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / SEFI
EmissionsUS FED
SymptomsExcessive Emissions
OccursHot, on Accel, Intermittently
Message Closed

car Vehicle Data

1991 Ford Thunderbird

VIN 1FAPP60T3M
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / SEFI
EmissionsUS FED
SymptomsExcessive Emissions
OccursHot, on Accel, Intermittently