 | Home > Tdi > Glow plug not igniting on key on |
 
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| Leamreject Member Since: 19 Dec 2020 Location: Middle Earth - Leamington Spa Posts: 954   
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Good job your in California as it would be a real issue in colder climates.
 Ride like you stole it!!
If I’m not on a bike it’s because only a 4x4 will do… 2011 2.4 Puma 90 HT |
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6th Oct 2022 9:17am |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6478  
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Is it a Tdi (with a glow plug relay-timer) or a pre-Tdi (TD or NA) without a relay?
 1988 90 Td5 NAS soft top
2015 D90 XS SW |
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6th Oct 2022 9:26am |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7682 
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Change feed off ign2 to glow plug relay. You are getting glow plug on with starter as glow plugs stay on for short while afternstarting with 300tdi anyway.
Change initial relay feed supply. Cheers James 110 XS Utility 130 Puma Station wagon/camper (in the making) 90 Puma Hardtop |
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6th Oct 2022 9:33am |
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| Soulrider911 Member Since: 04 Jul 2022 Location: California Posts: 105  
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The engine is a 2.5 turbo diesel “Falcon” according to vin. 1989 Defender 90
2022 Defender 110 SE DIY’er | Always learning |
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6th Oct 2022 3:42pm |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6478
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OK, on the pre-Tdi there is no glow plug timer, so you have to do it manually!
There is a sprung key position between "ignition" and "start" on the key - this is the glow plug heat position. Hold the key against the spring before you get to the start position (this is the heat position), count to 10 or 15 or 20, then turn it further to turn the starter motor. You should get the choke warning symbol come up on the warning panel when you are in the sprung 'heat' position. Source: my 90 used to be a TD  1988 90 Td5 NAS soft top
2015 D90 XS SW |
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6th Oct 2022 3:50pm |
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| Soulrider911 Member Since: 04 Jul 2022 Location: California Posts: 105
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Ohhhhh! I think I have been doing it wrong. Also my glow plug indicator light might be burned out as it is not illuminating… but I think it is one bulb I have not replaced. I usually turn the key all the way to acc let it sit then try to start. I think I have been doing it wrong. I will try this. Thank you so much, had no idea. 1989 Defender 90
2022 Defender 110 SE DIY’er | Always learning |
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6th Oct 2022 4:09pm |
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| Soulrider911 Member Since: 04 Jul 2022 Location: California Posts: 105
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Just talked to my tech and seems he did test this…
“ I did that check thinking mybe there was a set detent in the switch but never seen voltage to glow plug until engine is cranking over. We will check that when we get the rig back in.” Thoughts 1989 Defender 90 2022 Defender 110 SE DIY’er | Always learning |
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6th Oct 2022 4:39pm |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6478
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Check the switch is wired up correctly, many aren't.
1988 90 Td5 NAS soft top
2015 D90 XS SW |
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6th Oct 2022 4:41pm |
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| Soulrider911 Member Since: 04 Jul 2022 Location: California Posts: 105
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Thanks, I have a service manual and can dig into this more… but do you know offhand where the switch is? Is it part of the ignition column in the dash? 1989 Defender 90
2022 Defender 110 SE DIY’er | Always learning |
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6th Oct 2022 5:23pm |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6478
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It's mounted on the column, you should be able to see it and the wiring to it if you remove the instrument binnacle.
You're looking for a thick brown with red stripe wire for the glow plugs, the starter wire is white with red. 1988 90 Td5 NAS soft top
2015 D90 XS SW |
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6th Oct 2022 5:25pm |
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