'86 110 2.5d. 9v at glow plugs.

ibizalandy · Jun 5, 2024

Hi, I'm only getting 9v at the glow plugs. Since I put new injectors in, it's become more difficult to start. I changed the glow plugs too.
Apparently there's no relay in the system so does the power come straight from the ignition switch? Is it worth fitting a relay?
Any ideas welcome.
Thanks.

RustyDefender · Jun 5, 2024

ibizalandy said:
Hi, I'm only getting 9v at the glow plugs. Since I put new injectors in, it's become more difficult to start. I changed the glow plugs too.
Apparently there's no relay in the system so does the power come straight from the ignition switch? Is it worth fitting a relay?
Any ideas welcome.
Thanks.

maybe a bad earth, do you have 12v at battery? keep following it back
- battery
- switch
- follow to plugs

ibizalandy · Jun 5, 2024

RustyDefender said:
maybe a bad earth, do you have 12v at battery? keep following it back
- battery
- switch
- follow to plugs

Yeah, battery's good, turns over fine, just takes a lot longer to catch.

v8250 · Jun 5, 2024

ibizalandy said:
Yeah, battery's good, turns over fine, just takes a lot longer to catch.

But do you have a good strong 12v at the battery? You're losing 3v somewhere so this fault needs to found first. Crack open and clean earth wires first, replacing any poor/high resistance wiring first. Once earth/s are 100% proven, then trace back from glow plug feed wire.

tottot · Jun 5, 2024

There is no relay, the ignition switch is of a type designed to take the load. Connections in the switch could be worn causing resistance but check items above first.

'86 110 2.5d. 9v at glow plugs.

ibizalandy

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RustyDefender

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ibizalandy

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v8250

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tottot

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