Firebird V8-305 5.0L VIN F FI (1987)
Diagnostic Aids:
A road test may be necessary to verify the customer complaint. If the "Scan" indicates TCC is turning "ON" and "OFF" erratically, check the state of the
4th gear switch to be sure it is not changing states under a steady throttle position. If the switch is changing states, check connections and wire routing
carefully. Also if the 4th gear switch is always open the TCC may engage as soon as sufficient oil pressure is reached.
