TCS System

At distributor vacuum and time delay solenoid, remove hose to distributor. Hook vacuum gauge to bared fitting and place gauge so it can be observed from drivers seat. Run engine until thoroughly warm (about 10 minutes at room temperature). With transmission in "N" depress throttle slightly to uncover spark port. Vacuum should be present. With throttle still depressed, shift transmission into first gear. No vacuum should be present. If vacuum reading is constant at all times (caused by closed circuit), check for grounded wire in circuit, thermal override switch stuck closed (activated) or transmission switch stuck closed. If no vacuum was present during test (caused by open circuit), check for blockage in vacuum lines, carburetor fitting or carburetor. Also check for blown radio fuse, broken wire in system, thermal delay switch stuck open, solenoid coil wire broken or open, or defective time relay switch. Check all hoses for proper routing and good connections.