A/T - 2nd or 3rd Gear Starts/No 3rd Gear/Erratic Shifts
Number 84-7-11 Date 4/84Subject: 2.3 T..V. SPRING BREAKING- 1984 200-C TRANSMISSIONS WITH CODES BH, OI OR CZ - BONNEVILLE AND GRAND PRIX
A condition of second or third gear starts, no third gear or erratic shifts could be caused by a broken 2-3 throttle valve spring.
If this condition is experienced, remove the control valve assembly. Remove the 2-3 valve parts, clean the valve and replace the spring (see illustration). Item #7 is the 2-3 throttle valve spring.
New springs are only available through your zone office.