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Nissan Primera P12 diesel, slow starting in cold
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roy.2 View Drop Down
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Points: 3976 		Post Options Post Options   Thanks (0) Thanks(0)   Quote roy.2 Quote  Post ReplyReply Direct Link To This Post Topic: Nissan Primera P12 diesel, slow starting in cold
    Posted: 10 Mar 2021 at 10:51am
They will not all fail together, Ouch  but they will wear down together, Thumbs Up  now you have 1 new glow plug shining away with a white hot tip, with the other 3, at best, just burning red. Thumbs Down
Roy
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petterg View Drop Down
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Points: 396 		Post Options Post Options   Thanks (0) Thanks(0)   Quote petterg Quote  Post ReplyReply Direct Link To This Post Posted: 10 Mar 2021 at 8:45am
Still hard to start in cold. I'll replace the reminding plugs.
Actually I see it as a negative thing if they all wear down the same. That mean when you run into trouble, you'll end up not being able to start the car while waiting for new parts.
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roy.2 View Drop Down
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Points: 3976 		Post Options Post Options   Thanks (0) Thanks(0)   Quote roy.2 Quote  Post ReplyReply Direct Link To This Post Posted: 03 Mar 2021 at 4:10pm
I would renew the other 3 plugs then they can all wear down at the same time. Thumbs Up
Keep the old 3 as your spares.
Roy
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Points: 396 		Post Options Post Options   Thanks (0) Thanks(0)   Quote petterg Quote  Post ReplyReply Direct Link To This Post Posted: 03 Mar 2021 at 9:06am
The day before the new plugs arrived, starting was really slow, even in temperature of +5C. Then I measured the plugs again and found one that had open circuit. I replaced this one, and the red warning light did not come on the next cold start. Weather is not cold enough to tell if this actually fixed the slow start issue. I might not get an answer to that before next winter. Until then I have 7 spare glow plugs.
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petterg View Drop Down
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Points: 396 		Post Options Post Options   Thanks (0) Thanks(0)   Quote petterg Quote  Post ReplyReply Direct Link To This Post Posted: 24 Feb 2021 at 8:06pm
Yeah. I wouldn't miss that opportunity, so full set of plugs to both cars. If I ever need two glow plugs, I saved money on this purchase. The package is on it's way. As these plugs are the same for many cars, having some in stock might come handy for someone else as well.
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roy.2 View Drop Down
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Points: 3976 		Post Options Post Options   Thanks (0) Thanks(0)   Quote roy.2 Quote  Post ReplyReply Direct Link To This Post Posted: 23 Feb 2021 at 11:24pm
That is a great price for Glowplugs. Thumbs Up
Roy
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Points: 396 		Post Options Post Options   Thanks (0) Thanks(0)   Quote petterg Quote  Post ReplyReply Direct Link To This Post Posted: 23 Feb 2021 at 2:58pm
Thanks for the tip on testing the plugs.

They are from 2016. This car has only been driving 35,000km with them. I'm disapointed by their lifetime. My other P12 has been driven 140,000km over 11years without any glow plug issues.

I just realized that my parts supplier had new plugs for €2.5 + shipping, so I ordered 8 plugs with combined shipping. Wonder if they'll send it, as the price should probably have been €12.5.
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roy.2 View Drop Down
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Points: 3976 		Post Options Post Options   Thanks (0) Thanks(0)   Quote roy.2 Quote  Post ReplyReply Direct Link To This Post Posted: 23 Feb 2021 at 10:20am
Take your Glowplugs out and test them on a battery, they should glow White Hot, not just Red Hot. You may find one is starting to fail.  You can get 4 x Bosch/NGK ones here for less than £30.00  Thumbs Up
If yours have been in a couple of years, it maybe worth renewing them.
Roy
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Points: 396 		Post Options Post Options   Thanks (0) Thanks(0)   Quote petterg Quote  Post ReplyReply Direct Link To This Post Posted: 23 Feb 2021 at 5:28am
Outside temperature climbed from -10ish to +5C. With warm weather it starts without any hesitation. But it also started to throw fault code P0670 on every cold start. Letting the engine run for a few minutes, then restart, and the fault code is gone. If restarted too soon after a cold start, the fault is still there. So, obviously something is wrong with the glowing system. I just can't figure out what it is.
If the glow relay was screwed, it wouldn't have started at all in the cold. All glow plugs resistance is in the range 0,5-0,7ohms while installed. All plugs gets voltage around 12V while glowing. What could be causing this issue when all measurements seems ok?
I'm tempted to order new glow plugs just for the lack of alternatives.
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Points: 396 		Post Options Post Options   Thanks (0) Thanks(0)   Quote petterg Quote  Post ReplyReply Direct Link To This Post Posted: 10 Jan 2021 at 2:31pm
Problem is back. Reconnecting glow cables does not help this time. When outside temp is -8C starter has to run for almost 20 sec before it starts.
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