Customer comments of idle stall or slight idle oscillation (plus or minus 200) after declutching or stopping the vehicle can be remedied by a PROM change, as identified below:
Year/Emission Trans./Axle Service PROM ------------- ----------- ------------- 1985/Federal 4-spd./3.32 Heater Only 1228360 1985/Federal 4-spd./3.65 A/C Only 1228362 1985/Federal 5-spd./3.83 A/C or Heater 1228361
1986/Federal 4-spd./3.32 Heater Only 1228366 1986/Federal 4-spd./3.65 A/C Only 1228365 1986/Federal 5-spd./3.83 A/C or Heater 1228368
Use standard Labour Time Guide for service PROM exchange.
General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.