On some 1986 Fleetwood Broughams the accelerator pedal may fluctuate while the cruise control is engaged yet the speed of the vehicle will remain constant. This condition may be caused by conductive grease in the bulkhead connector. To repair this condition, proceed as follows:
1. Disconnect negative battery cable.
2. Remove driver side hush panel.
3. Remove two fuse block retaining screws (7mm), release retaining clips and position fuse block out of the way.
4. Remove bulkhead connector screw ( 7/32") from engine compartment side of bulkhead connector.
5. Disconnect right hand side of the bulkhead connector and pull away from bulkhead.
*6. Cut and strip the tan wire, circuit 398 and the LT. BLU/BLK wire, circuit 399; LT GRN wire, circuit 402,, and DK BLU/BLK wire, circuit 403, on the passenger side of the bulkhead connector.
*7. Splice and solder 18 inch long, 20 gauge jumper wires to circuits 398 and 399, 402 and 403.
8. Wrap splices in electrical tape and feed jumper wires through open cavities in the passenger compartment side of the bulkhead connector.
9. Clean excess grease from the corresponding cavities on the engine compartment side of the bulkhead connector. Feed jumper wires through the cleared cavities.
10. Cut and strip the tan wire, circuit 398 and the Lt. BLU/BLK wire, circuit 399; LT GRN wire, circuit 402; and DK BLU/BLK wire circuit 403 on the engine compartment side of the bulkhead connector.
11. Splice and solder the jumper wires to circuits 398 and 399, 402 and 403.
12. Wrap splices in electrical tape.
13. Reconnect the right side of the bulkhead connector.
14. Install the bulkhead connector screw.
15. Install the fuse block and two retaining screws.
16. Install the hush panel.
17. Reconnect battery cable.
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.