Engine Timing Gear - Noise

Number 83-T-81 Section 6 Date 11/84

Subject: 2.5L TIMING GEAR NOISE - 1982-83 6000 AND PHOENIX WITH CRUISE CONTROL

There is a Possibility of timing gear noise when the 2.5L engine is used in conjunction with cruise control on the 1982-83 6000 and Phoenix vehicles.

This noise is caused by the load applied to the camshaft by the vacuum pump.

FIGURE 1 - Vacuum Canister Connections:

FIGURE 2 - Vacuum And Vapor Canister Assembly:

To correct the condition remove the vacuum pump and install cover, Part Number 10022599, and gasket, Part Number 9776705, using the existing bolts and washers.. A vacuum canister, Part Number 14080255, must be installed using nuts, Part Number 11503747. The vacuum canister is installed below the vapor canister as shown in Figure 2. Six feet of 1/4" vacuum hose, one foot of 1/8" vacuum hose and 1/4"-1/8" reducer are required to connect the canister. The canister should be connected as shown in Figure 1. Verify operation of cruise control unit.