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Jun 14th, 2026
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Joined: Jan 2015
Posts: 57
Just Getting Started
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OP
Just Getting Started
Joined: Jan 2015
Posts: 57 |
Hi All,
My M3W engine died while idling in the drive. Several attempts to start yielded nothing. Checked for spark and it was there. A bit of starting fluid in the intake and it kicked over but would not continue. Checked the Schrader on the fuel rail and had no residual pressure.
Let it set overnight. Turned key and finally heard fuel pump spin up. It started, but only once. No more fuel pump sound.
Seems like a fuel pump or relay (if there is a fuel relay). Is there a diagram or schematic available that could show me how the fuel pump is wired and what each relay is for?
I'd love to take her our for a casual Sunday spin.
2013 M3W
2025 Plus Four
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Joined: Nov 2013
Posts: 786 Likes: 18
Talk Morgan Regular
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Talk Morgan Regular
Joined: Nov 2013
Posts: 786 Likes: 18 |
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Joined: Feb 2014
Posts: 368 Likes: 1
Learner Plates Off!
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Learner Plates Off!
Joined: Feb 2014
Posts: 368 Likes: 1 |
The fuel pumps have been known to go bad. I'm on my 2nd one.
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Joined: Jan 2015
Posts: 57
Just Getting Started
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OP
Just Getting Started
Joined: Jan 2015
Posts: 57 |
This helped, thank you!
I isolated it to the actual pump. Pulled pump assy from tank (took me a bit of time to figure out how to detach fuel lines. Easy but not obvious).
I removed tested the pump assembly with a 13V power supply. Nothing. I pulled the pump motor and gave it 15vdc direct to the leads and it spun right up.
Re-assembled and ran the Morgan all day. Great day for a drive!
I'll order a backup pump rebuild kit this week. Looks to be ~$170USD.
Thank you!
2013 M3W
2025 Plus Four
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