You need a good multi-meter to measure this. The solenoids should be close to .25 ohms and they should be identical. You can measure this up at the bulkhead connector in the round end. The green/yellow wire is the common, so measure from it to either the blue wire or the brown wire. It will be more accurate if you disconnect them first by removing the brass hex nuts. Be careful not to loose the tiny split ring washers. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, "Harold McElraft" <hmcelraft@xxxx> wrote: > If they work they are most likely ok. You can test the resistence > against a new one to confirm condition. They are not a known for a > high failure rate. > > Harold McElraft - 3354 >