- Remove the valve from the engine. Using an ohmmeter, test the resistance
between the electrical terminals. It must be 32.7–39.9 ohms. If not,
replace it.
- If resistance is o.k., check the resistance between each terminal and the
solenoid body. It must be 1,000 ohms. or more in both places, or the valve
should be replaced.
- Apply 12 volts between the plus and minus terminals (positive battery terminal
to positive solenoid terminal). When current is on, you should be able to
blow through the solenoid from A to B. When it is off, it must seal off tight
from A to B and open from B to C. Otherwise, replace the solenoid.
