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Glow Plug Relay repeatedly clicking - No power to Glow Plugs


 
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gingerstallone



Joined: 25 Mar 2016
Posts: 1
Location: Brighton

PostPosted: Fri Aug 23, 2019 12:07    Post subject: Glow Plug Relay repeatedly clicking - No power to Glow Plugs Reply with quote

Dear All,

I have a 1994 Delica 2.8D... I am not getting power to my glow plugs and my start is laboured causing me to use easy start if its a bit chilly. I noticed a repeated clicking from the glow plug relay whilst driving. It sporadically switches on and off. I have changed both the relay and the relay management unit but the problem remains.

Has anyone experienced anything similar and have a solution?

Also an electrical short started to occur, a mad electrical buzzing sound coming from a black relay under the steering column, which I removed and smelt like burning... don't know if this is related and symptomatic of an overall electrical issue with the car...

Any help greatfully recieved!
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PostPosted: Fri Aug 23, 2019 12:07    Post subject: Google Ads keep this community free to join!


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Deker
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Joined: 08 Mar 2008
Posts: 3323
Location: Borehamwood Hertfordshire

PostPosted: Thu Aug 29, 2019 22:56    Post subject: Reply with quote

Look here in this section = Simple and Basic Test Lamps & Non blowing Fuse.

Use a high power test lamp (headlamp bulb) connected to the "Bus bar" to see if power is going there, if so, then the Glow Plugs need replacing.

If no power there, then check all 3 of the terminals on the Glow relay, for testing the small blade connector, and output lead
you will need an assistant to switch on and off the ignition.

One lead (held on with a nut) on the relay will always be "live" the other two, only when the relay is energised.

HTH

Mr D
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andyman



Joined: 08 Dec 2012
Posts: 4172
Location: Penrith, Cumbria

PostPosted: Mon Sep 02, 2019 13:26    Post subject: Reply with quote

Deker - tell me if I am talking/thinking out of the wrong orifice! Does the temp. sensor on the head send a signal to the glow plug ecu? And if the sensor had a poor connection, would it cause the relays to click on again?
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Lewis
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Joined: 25 May 2006
Posts: 15316
Location: Huddersfield

PostPosted: Mon Sep 02, 2019 13:52    Post subject: Reply with quote

Yes it does, see the Glow System Diagram on this post:- http://www.MDOCUK.co.uk/forums/viewtopic.php?t=37255
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