RESERVOIR-VACUUM
DESCRIPTION
| 1 - Air Cleaner Box |
| 2 - Vacuum Line |
| 3 - Speed Control Servo |
| 4 - Cross Support |
| 5 - Electrical. Connector |
| 6 - Servo Mounting Bracket |
| 7 - Servo Mounting Bolt |
| 8 - Vacuum Reservoir Mounting Bolt |
| 9 - Vacuum Reservoir |
The vacuum reservoir is a plastic storage tank connected to an engine vacuum source by vacuum lines.
The reservoir (9) is attached to the side of the air cleaner filter housing (1).
A vacuum reservoir is not used with diesel engines or the 5.7L gas powered engine.
OPERATION
The vacuum reservoir is used to supply the vacuum needed to maintain proper speed control operation when engine vacuum drops, such as in climbing a grade while driving. A one-way check valve is used in the vacuum line between the reservoir and the vacuum source. This check valve is used to trap engine vacuum in the reservoir. On certain vehicle applications, this reservoir is shared with the heating/air-conditioning system. The vacuum reservoir cannot be repaired and must be replaced if faulty.
DIAGNOSIS AND TESTING - VACUUM RESERVOIR
Refer to Diagnosis and Testing — Vacuum Supply Test for procedures.
REMOVAL
| 1 - Air Cleaner Box |
| 2 - Vacuum Line |
| 3 - Speed Control Servo |
| 4 - Cross Support |
| 5 - Electrical. Connector |
| 6 - Servo Mounting Bracket |
| 7 - Servo Mounting Bolt |
| 8 - Vacuum Reservoir Mounting Bolt |
| 9 - Vacuum Reservoir |
The vacuum reservoir (9) is attached to the side of the air cleaner filter housing (1).
1. Disconnect vacuum line (2) at reservoir.
2. Remove reservoir mounting bolt (8).
3. Remove reservoir (9).
INSTALLATION
| 1 - Air Cleaner Box |
| 2 - Vacuum Line |
| 3 - Speed Control Servo |
| 4 - Cross Support |
| 5 - Electrical. Connector |
| 6 - Servo Mounting Bracket |
| 7 - Servo Mounting Bolt |
| 8 - Vacuum Reservoir Mounting Bolt |
| 9 - Vacuum Reservoir |
1. Position reservoir (9) to air filter housing.
2. Install and tighten mounting bolt (8).
3. Connect vacuum line (2) to reservoir fitting.