Anti–Dieseling Valve Solenoid (GM 3000)

The anti–dieseling valve solenoid is located on the right side of the carburetor, which is on the top rear end of the engine. Its has two white wires (Fig. 61 and 62).

In Place Testing

Note: Prior to taking small resistance readings with a digital multimeter, short the test leads together. The me­ ter will display a small resistance value (usually 0.5 ohms or less). This resistance is due to the internal re­ sistance of the meter and test leads. Subtract this value from from the measured value of the component you are testing.

1.Disconnect connector from the solenoid.

2.Using a digital multimeter, ground one lead to the engine block and connect the other to the solenoid ter­ minal.

3.The resistance should be about 25.0 ohms.

4.Connect the wire back to the solenoid.

Live testing

1. Remove the connector from the solenoid.

Note: The solenoid may be removed from the engine or tested in place.

2.Connect a positive (+) test lead from a 12 VDC source to the solenoid terminal.

3.Touch a negative (–) test lead from the 12 VDC source to the solenoid body. The plunger should retract making an audible ”click”.

SOLENOID

Figure 61

SOLENOID

Figure 62

4.Disconnect the test leads from the solenoid.

5.Reinstall the connector to the solenoid if tested in place.

Electrical

System

 

 

Groundsmaster 3000/3000–D

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Electrical System

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Image 139
Toro 3000D manual Anti-Dieseling Valve Solenoid GM, Place Testing