Lucas advance solenoid trouble

Jumpy-Joe · 2023-09-26 07:25:14

Does anyone know how this solenoid actually work? What does it do inside the pump? I need to know, because it's driving me nuts!!! I have a problem that comes and goes, and I have tried "everything" to fix it. The engine light comes on, and the engine sounds like the valves are about to jump out. Traced it to the advance solenoid, because if I disconnect it while the engine is running normally the sound appears with the engine light. I have taken the solenoid out and tested it, and it clicks inside it. Put it back into the pump, and it can work for some minutes... or days... or not at all. But suddenly it's back... rattling and the amber glow of the engine light...
I really need some help here, guys.

kenbw2 · 2023-09-27 23:37:30

Damn, I can;t answer your question but is there a reason you can't just leave it disconnected, if it's just the advance solenoid? Worse cold starts? Worse efficiency?

Jumpy-Joe · 2023-10-01 09:35:22

Well, that could have been a solution, but the sound from the engine is nerve wracking when the solenoid is disconnected. It has been working fine for a while now, but I still don’t know how it works. And when it comes back…

AlvyLad · 2023-10-01 14:23:05

Jumpy-Joe wrote:

Well, that could have been a solution, but the sound from the engine is nerve wracking when the solenoid is disconnected. It has been working fine for a while now, but I still don’t know how it works. And when it comes back…

Couple of things I've noticed:

It is when solenoid isn't working, you get engine rattling, not other way round, hence disconnecting permanently isn't a option.

You squarely blame solenoid, even it is operated electrically (as all electric valves (solenoids) are), unfortunately I just can't help you with, but to suggest investigating further as for wiring- connections and from as much as I understand injection system, it works by interrupting pressure (keep it "primed") for the fuel to be injected at the correct time, correct cylinder.

(definition and funcion of solenoid)
http://www.solenoids-coils.com/what-is-a-solenoid/

Edit
I meant to say pump solenoid is operated like injectors- (solenoids) electrically

Last edited by AlvyLad (2023-10-01 16:18:33)

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#1 2023-09-26 07:25:14

Lucas advance solenoid trouble

#2 2023-09-27 23:37:30

Re: Lucas advance solenoid trouble

#3 2023-10-01 09:35:22

Re: Lucas advance solenoid trouble

#4 2023-10-01 14:23:05

Re: Lucas advance solenoid trouble

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