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Moffittclan's avatar
Moffittclan
Explorer
May 16, 2016

Battery disconnect or isolation solenoid? HELP!

I think I might have a bad isolation solenoid because my house batteries aren't charging with the engine running...I tested by measuring volts on house batteries with engine off (12.1) and then with e...
Gjac's avatar
Gjac
Explorer III
May 16, 2016
In your picture you can see 2 large nuts and two small nuts, there should be 12+v across the two large nuts if it is working if only 12+v on one lug it is not engaging. Also check the voltage on the small nuts one should have a 12 v input to the solenoid. You can always jumper the 2 large connection to use the MH for your trip until you get a new solenoid.

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