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Jun 14th, 2026
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Joined: Dec 2009
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Tricky Dicky Member of the Inner Circle
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Tricky Dicky Member of the Inner Circle
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It's just possible it's intermittent and giving you a very sudden drop in power. Certainly worth swapping the switches over and checking there is no power loss but of course the brake lighting would then be dodgy. A new switch on the fuel one would be best if possible the wiring diagram will tell you by colour which is which, sorry not sucking eggs here just trying to help.
2009 4/4 Sport Henrietta
1999 Indigo Blue +8
2009 4/4 Sport Green prev
1993 Con Green +8 prev
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Joined: Mar 2017
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Talk Morgan Enthusiast
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Bingo, thanks Rich
Heinz are you seeing this?
During servicing the day before, the technician noted that the brake lights weren’t working and found a fault on the switch. But that should have been the brake light switch. Interesting.
Last edited by SFG; 30/03/20 09:14 PM.
SFG
2012 4/4 Sport
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Talk Morgan Expert
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Talk Morgan Expert
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Wouldn’t the OBD reader pick this up though Rich ?
Craig Jezz
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Joined: Dec 2009
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Tricky Dicky Member of the Inner Circle
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Tricky Dicky Member of the Inner Circle
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I've never had the need of one Craig so I can't answer that one, logic tells me no though because it would have to know when you are braking wouldn't it  And that would be a very clever machine to know that 
2009 4/4 Sport Henrietta
1999 Indigo Blue +8
2009 4/4 Sport Green prev
1993 Con Green +8 prev
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Joined: Mar 2017
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Talk Morgan Enthusiast
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Craig, the switch is on/off I presume, so maybe the OBD would deem it legitimately off?
Last edited by SFG; 30/03/20 09:32 PM.
SFG
2012 4/4 Sport
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Joined: Dec 2009
Posts: 37,410 Likes: 977
Tricky Dicky Member of the Inner Circle
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Tricky Dicky Member of the Inner Circle
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Posts: 37,410 Likes: 977 |
Bingo, thanks Rich
Heinz are you seeing this?
During servicing the day before, the technician noted that the brake lights weren’t working and found a fault on the switch. But that should have been the brake light switch. Interesting. If the 2 switches are "ganged" could it be they are out of adjustment ? If so this would tie the two faults up. My Plus 8 only has the hydraulic switch but my 4/4 Sport had the 2 and I had to change the brake light one before one MOT.
2009 4/4 Sport Henrietta
1999 Indigo Blue +8
2009 4/4 Sport Green prev
1993 Con Green +8 prev
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Joined: Mar 2017
Posts: 2,274 Likes: 41
Talk Morgan Expert
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Talk Morgan Expert
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Craig, the switch is on/off I presume, so maybe the OBD would seem it legitimately off? Sounds like you might have cracked it 
Craig Jezz
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Talk Morgan Enthusiast
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![[Linked Image]](https://www.tm-img.com/images/2020/03/30/F61A4EA5-E06C-45C3-9DE4-184D567BE43B.jpg) Rich, Here’s the two switches, wiring removed and you can see the broken terminal on the right of the RH one. That wire is green/purple. It looks like there is no adjustment. Waiting to hear if Uncle M has a switch in stock
SFG
2012 4/4 Sport
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Tricky Dicky Member of the Inner Circle
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Tricky Dicky Member of the Inner Circle
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Good shot SFG and good find - the adjustment is carried out on the back nut which is a skeletal affair the other side of the mounting bracket from the alloy upstand the knurled locking ring being the other side of it nearest the black actuator. Is the green/purple the fuel one ?
2009 4/4 Sport Henrietta
1999 Indigo Blue +8
2009 4/4 Sport Green prev
1993 Con Green +8 prev
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Joined: Mar 2017
Posts: 1,615 Likes: 1
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Mar 2017
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![[Linked Image]](https://www.tm-img.com/images/2020/03/30/956AAE64-9E57-4DC8-943A-E99BC9FFD18F.jpg) According to this Green /purple is the brake light switch. Still searching for the fuelling switch on here Ok I see the back but, looks hard to get to
Last edited by SFG; 30/03/20 10:08 PM.
SFG
2012 4/4 Sport
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