Patrol sub tank

Submitted: Tuesday, Feb 26, 2013 at 20:39
ThreadID: 100782 Views:1754 Replies:2 FollowUps:9
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Has anyone had any dealings with sub tank switching on GU Patrol,the problem I am having is it pleases it self when it dumps to main tank
Cheers Les
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Reply By: Mick O - Tuesday, Feb 26, 2013 at 21:25

Tuesday, Feb 26, 2013 at 21:25
Wiring Les. Sounds like a short of some discription. Have you been under and removed the shroud from in front of the pump. It could be that the pump and connections need a good clean. While you're there make sure all your earth connections are in good nick, cleaned and soundly grounded.

Lots of good info on the Patrol 4x4 forum.


Cheers Mick


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AnswerID: 505643

Follow Up By: Cravenhaven - Tuesday, Feb 26, 2013 at 21:49

Tuesday, Feb 26, 2013 at 21:49
As Mick says, the best source of info about Patrol issues is the patrol 4x4 site.
I'm a little curious to know what you mean by "it pleases itself" when dumping fuel from the sub to the main. Do you mean that it takes a long time to pump fuel across after you have pressed the subtank switch, or that it transfer fuel without you pressing the switch?.
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FollowupID: 782577

Follow Up By: Mark&Sue - Wednesday, Feb 27, 2013 at 08:23

Wednesday, Feb 27, 2013 at 08:23
Patrol sub tanks do pump for a couple of minutes every time you turn ignition on and start engine, also sometimes by disconnecting main battery it resets the sub tank switching.
Cheers Mark
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Follow Up By: Les H3 - Wednesday, Feb 27, 2013 at 13:23

Wednesday, Feb 27, 2013 at 13:23
Yes it transfers fuel without pressing button
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Follow Up By: Les H3 - Wednesday, Feb 27, 2013 at 13:23

Wednesday, Feb 27, 2013 at 13:23
Yes it transfers fuel without pressing button
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Follow Up By: Patrol22 - Wednesday, Feb 27, 2013 at 15:41

Wednesday, Feb 27, 2013 at 15:41
Les the transfer of fuel in the Patrol is designed as you are experiencing. It will automatically transfer for about 25-30 seconds each time the ignition is turned on. I am informed that this is intended to keep the transfer pump from drying out and/or ceasing - ie the few seconds for fuel going through keep the pump well lubricated.
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Follow Up By: Les H3 - Wednesday, Feb 27, 2013 at 15:45

Wednesday, Feb 27, 2013 at 15:45
It will continue transferring until it is empty without touching the switch
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Follow Up By: Patrol22 - Wednesday, Feb 27, 2013 at 16:04

Wednesday, Feb 27, 2013 at 16:04
OK...if this happens then you have a problem with the transfer switch in the subtank. You might like to check out these discussions for starters:

4WD Action fuel transfer

4WD Action fuel transfer - 2

Nissan Patrol 1

Nissan Patrol 2

Exploroz 1

IH8Mud Forum

These are just a sample of possible sites for more information. You might like to start with a search of this forum (ie Exploroz) as there are 3 or 4 threads on the patol's fuel transfer system. Hope this helps.
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FollowupID: 782629

Follow Up By: Cravenhaven - Thursday, Feb 28, 2013 at 00:00

Thursday, Feb 28, 2013 at 00:00
When its transferring fuel, is the light on the subtank switch lit?.
If so it is probably a problem with the switch itself.
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Follow Up By: Les H3 - Thursday, Feb 28, 2013 at 06:32

Thursday, Feb 28, 2013 at 06:32
No the light is not on I am going check earth on weekend thanks everyone for your help
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FollowupID: 782668

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