Wales
by Joske Vermeule, September 1
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Jun 14th, 2026
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Joined: Oct 2016
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Talk Morgan Regular
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OP
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So I left my 2012 plus 4 parked in the sun yesterday for perhaps 30 mins. It was pretty hot... over 30 degrees where it was sitting I'd say. Came back to start it and the rev counter went to full deflection and stayed there. Switched off and on and the rev counter stayed at 0 even after starting. Switched off and on and went to full deflection even after starting. Switched off and on and zero. Switched off and went and left it 5 mins. Then back to normal. Switched off in garage after driving home and i haven't dared to look at it again yet.....
Anyine else had ghis?
Thanks
Nick
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Joined: Jul 2007
Posts: 27,816 Likes: 749
Member of the Inner Circle
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Member of the Inner Circle
Joined: Jul 2007
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I haven't but I think there were some posts years ago on this.
JohnV6
2022 CX Plus Four
2025 Renault Scenic Alpine etech "Yvette"
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Joined: Jun 2015
Posts: 2,093 Likes: 74
Talk Morgan Expert
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Talk Morgan Expert
Joined: Jun 2015
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Recall most advice given here in the past relates to ensuring a slight delay between switching on ignition and actually starting the engine. This gives time for ecu to sort itself out. Suggest a delay until fuel primimg sound stops, speedo has jiggled around (as it does if you watch closely) and settled to zero and immobiliser light gone out. Sounds a lot but only a few seconds in practice.
Doug
2011 Plus 4 in Rich Maroon
1972 750 “ComDom” sprinter
1958 Triton 650
1992 Triumph Trophy 900
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Joined: Jul 2007
Posts: 27,816 Likes: 749
Member of the Inner Circle
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Member of the Inner Circle
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True Deejay I also understand it lets the ECU settle down.
JohnV6
2022 CX Plus Four
2025 Renault Scenic Alpine etech "Yvette"
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Joined: Jan 2011
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Charter Member
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Charter Member
Joined: Jan 2011
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That is the procedure I have always followed and, touch wood, it seems to work.
Here for a good time not a long time!!
Reg
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Joined: Mar 2017
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Talk Morgan Expert
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Talk Morgan Expert
Joined: Mar 2017
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Mine has done similar, and I was advised on here to turn the key with the ignition lights on only for approx 10 seconds before turning the engine over. Something to do with the ECU
No further issues for me
I hope this helps
Craig Jezz
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Joined: Nov 2013
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Talk Morgan Regular
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Recall most advice given here in the past relates to ensuring a slight delay between switching on ignition and actually starting the engine. This gives time for ecu to sort itself out. Suggest a delay until fuel primimg sound stops, speedo has jiggled around (as it does if you watch closely) and settled to zero and immobiliser light gone out. Sounds a lot but only a few seconds in practice. Agreed, mine has done this on 3 or 4 occasions and this always sorts it.
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Joined: Oct 2016
Posts: 513 Likes: 2
Talk Morgan Regular
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OP
Talk Morgan Regular
Joined: Oct 2016
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OK many thanks folks - I'll try that first....
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Joined: Apr 2013
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Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Apr 2013
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My speedo does this, it takes a while for it to settle down, must try the delayed start trick. I have a Omex ecu in so this could also be the issue.
Graeme: 2011 +4
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Joined: Aug 2011
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Talk Morgan Guru
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Talk Morgan Guru
Joined: Aug 2011
Posts: 7,553 Likes: 88 |
Recall most advice given here in the past relates to ensuring a slight delay between switching on ignition and actually starting the engine. This gives time for ecu to sort itself out. Suggest a delay until fuel primimg sound stops, speedo has jiggled around (as it does if you watch closely) and settled to zero and immobiliser light gone out. Sounds a lot but only a few seconds in practice. I was told this by the Ford Regional Service Manager, when I had a recurring problem on a new Fiesta, a few years ago. He advised me to wait until all the check lights had gone out, before starting the engine. It solved the problems on the Fiesta and it is now habit for me on my 4/4 and my current tintop.
Bud
4/4 "Stanley"
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