sub tank issue

Submitted: Saturday, Jun 17, 2017 at 01:45
ThreadID: 135098 Views:2152 Replies:4 FollowUps:3
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Hi all,
I have a 78 series troopy which wont switch to sub tank. Light goes on, Solenoids work (tested manually), but not clicking in. there are 4 wires going to solenoids but all with positive wiring?? Take them all out and they are off. Put one back in and a test light shows positive power to the 2nd wires... Not sure how? Dodgy negative wiring? Is there a relay not working? Looked on a wiring diagram and it all looks right.
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Reply By: RMD - Saturday, Jun 17, 2017 at 08:25

Saturday, Jun 17, 2017 at 08:25
If you feed a solenoid coil with + 12v and the other wire also has + 12v on it, it indicates the earthing to negative is not correct.
If no neg connections all wires will show 12v with a multi meter.
AnswerID: 611953

Follow Up By: Karl G3 - Saturday, Jun 17, 2017 at 08:55

Saturday, Jun 17, 2017 at 08:55
any idea where the earthing for this is? My wiring diagram says right kick panel but we haven't been able to find it...
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FollowupID: 882001

Follow Up By: Karl G3 - Saturday, Jun 17, 2017 at 09:16

Saturday, Jun 17, 2017 at 09:16
could it be the relay? Looking for that but cannot see one on the wiring diagram.
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FollowupID: 882002

Follow Up By: Chris v6 - Saturday, Jun 17, 2017 at 16:20

Saturday, Jun 17, 2017 at 16:20
do not have a relay
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FollowupID: 882005

Reply By: Member - Tony H (touring oz) - Saturday, Jun 17, 2017 at 15:57

Saturday, Jun 17, 2017 at 15:57
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AnswerID: 611957

Reply By: Member - McLaren3030 - Monday, Jun 19, 2017 at 12:33

Monday, Jun 19, 2017 at 12:33
If you did not fit it yourself, take it back to whoever did fit it and get them to sort it out. Like previous replies, sounds like an incorrect earthing problem. Macca.
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AnswerID: 611988

Reply By: ExplorOz - David & Michelle - Monday, Jun 19, 2017 at 14:54

Monday, Jun 19, 2017 at 14:54
Karl,

I had a similar problem on my Troopy, I suspect from your testing of the wiring however it may be different but here goes. I found that the solenoid was firing but a valve or something inside the setup was not moving and thus everything seemed right except what was happening mechanically inside the value - my fix was a replacement. Hope it helps. In your testing did you take the value out and ensure it actually mechanically switches when energised?

David
David (DM) & Michelle (MM)
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