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Author Topic: Turbo Diesel bad starting - Help!  (Read 3930 times)

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Agemo

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Turbo Diesel bad starting - Help!
« on: 22 August 2008, 09:19:24 »

OK 2000 CDX TD, Was running perfect up until last night, went to start the car, engine turning over but not firing. After a couple of attempts, it started, then ran fine. Tried it this morning, same effect, pumped the throttle & it burst into life, running perfect again. Obviously there is something wrong, I would probably start with the glowplugs, but have limited experience of Diesels so would appreciate any advice. I have no warning lights up, and wish there was a paperclip test I could do. There is plenty of fuel in the tank, and I don't suspect filters as it revs oK when started. Thanks.
 ::)
« Last Edit: 22 August 2008, 09:19:54 by Agemo »
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TheBoy

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Re: Turbo Diesel bad starting - Help!
« Reply #1 on: 22 August 2008, 09:21:37 »

Some TDs you can paperclip, so worth a go.  Probably will come up with 49 (from memory), glow plug general error.

You can measure the glow plugs from relay box next to battery - all should be around 1 ohm
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Agemo

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Re: Turbo Diesel bad starting - Help!
« Reply #2 on: 22 August 2008, 09:32:12 »

Hi, Thanks for the super quick reply. I will have a go at paperclip test, I assume it is still bridging 5 & 6? I do have a multi-meter, but would need talking through the test if convenient. I hope I come up with a result soon, I have to leave for work soon.
 ::)
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Agemo

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Re: Turbo Diesel bad starting - Help!
« Reply #3 on: 22 August 2008, 09:45:27 »

Latest - Tried paperclip test, came up with 1 2 - 1 2 repeating, no other codes, not sure if this means there are no faults stored, or that the test can't be done on this particular engine.
 ::)
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Re: Turbo Diesel bad starting - Help!
« Reply #4 on: 22 August 2008, 11:03:11 »

Sounds like it might be the lift pump in the tank
I had a similar situation which was solved by replacement
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platty

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Re: Turbo Diesel bad starting - Help!
« Reply #5 on: 22 August 2008, 12:36:30 »

It does sound like a glow problem or fuel starvation - is the tank on or around 20 litres, parked on a hill? This could let some air in and cause slow starting in the morning. The lift pumps are prone to just stopping.

How long does your glow light stay on for? Have you tried glowing 2-3 times before starting?
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TheBoy

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Re: Turbo Diesel bad starting - Help!
« Reply #6 on: 22 August 2008, 16:06:04 »

Quote
Latest - Tried paperclip test, came up with 1 2 - 1 2 repeating, no other codes, not sure if this means there are no faults stored, or that the test can't be done on this particular engine.
 ::)
Means its paperclipable, but no stored codes.
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Agemo

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Re: Turbo Diesel bad starting - Help!
« Reply #7 on: 22 August 2008, 21:22:43 »

Sounds like it might be the lift pump in the tank
I had a similar situation which was solved by replacement
OR
Quote
It does sound like a glow problem or fuel starvation - is the tank on or around 20 litres, parked on a hill? This could let some air in and cause slow starting in the morning. The lift pumps are prone to just stopping.

How long does your glow light stay on for? Have you tried glowing 2-3 times before starting?

right, thanks for the replies, as for the lift pump or fuel starvation, good thinking, but when started there is no lack of fuel, it pulls like a train. even the S button makes it leap forward like a big fast leaping thing.

the glowplug light stays on for about 4 seconds, I am assuming this is about normal, it seems a good idea to try letting it "glow" for several times before trying it. I will do that test tomorrow morning.

As for the car being "paperclippable" but not storing codes, there would be no point in the test then. Shame.

I am willing to try the lift pump in the tank, as there is apparently a filter in there, I would like to see this.

Thanks for the ideas, I will update this thread when I have tried "glowing" several times.
« Last Edit: 23 August 2008, 09:32:12 by Agemo »
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TheBoy

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Re: Turbo Diesel bad starting - Help!
« Reply #8 on: 22 August 2008, 21:41:31 »

Does it start better with more fuel?
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Agemo

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Re: Turbo Diesel bad starting - Help!
« Reply #9 on: 22 August 2008, 22:29:00 »

Quote
Does it start better with more fuel?

I think I see where you are coming from, I will bang a few more gallons in tomorrow, then wit until it cools down and try it. Are you thinking lift pump then?
 ::)
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Agemo

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Re: Turbo Diesel bad starting - Help!
« Reply #10 on: 23 August 2008, 09:22:29 »

"How long does your glow light stay on for? Have you tried glowing 2-3 times before starting"

Thanks platty, i tried allowing the glowplugs go through their cycle four times, the the engine started immediately. Brilliant, now I know the glowplugs need changing, (I suppose they ALL need chsnging, perhaps it's only half of them?) I now need a little advice as to how to do the job. Gave the car a run, plenty of oomph, although on tickover, it dses seem a little lumpy, and there is a tad more vibration than normal, so I do suspect I may have a blocked injector. Is there any way of testing them?
 ::)
« Last Edit: 23 August 2008, 09:23:40 by Agemo »
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Seth

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Re: Turbo Diesel bad starting - Help!
« Reply #11 on: 23 August 2008, 22:18:48 »

My tractor is exactly the same .......
It has new injection pump, No.4 injector, glow-plugs, in-tank pump/swirl chamber/tank clinically cleaned, and fuel filter changed.
I've thrown a helluva lot of dosh at it, but the warm-start problem still persists.
BMW's crazy idea of not allowing the glow-plugs to even flash on/off under warm engine conditions seems to be the root cause. Apparently, certain Land Rover models which use the same 2.5TD lump suffer similarly, although 2.5TD-powered BMWs don't.
I've taken Omegatoy's and The Boy's advice, and am soon to 'chip' the tractor, as doing this remaps the electronics and cures the problem, effectively putting things back to full BMW spec.

Once mine's been chipped, I'll post a reply with the results .... !

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Agemo

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Re: Turbo Diesel bad starting - Help!
« Reply #12 on: 23 August 2008, 22:44:10 »

Thanks Sethsmate. I keep hearing about BMW engine spec being better than Vauxhall. I look forward to hearing how the chip goes. I must admit the car was better last week, I have slight vibration, and it used to start perfectly well. I must have a dirty injector at least, as well as one or more faulty glowplugs.
Did you fit nrand new injector? Or go for exchange?
Thanks again.
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MickAP

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Re: Turbo Diesel bad starting - Help!
« Reply #13 on: 24 August 2008, 01:24:09 »

If it starts ok when warm but troublesome when cold then first call woud be glow-plugs. Mine all of a sudden would not start when cold (but mine was in January) fine once warmed up until cold again.
Had the glow-plugs checked and they showed up as more than one at fault. If your plugs have been in for say approaching 90,000/100,000 miles then they must be getting tired.
I also have a vibration from somewhere but goes when warm, been checked over can't find out where it's coming from, me thinks it could be the cat as it started vibrating after I had a new exhaust from cat back fitted last year.

Mick

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Seth

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Re: Turbo Diesel bad starting - Help!
« Reply #14 on: 24 August 2008, 10:38:16 »

Quote
Thanks Sethsmate. I keep hearing about BMW engine spec being better than Vauxhall. I look forward to hearing how the chip goes. I must admit the car was better last week, I have slight vibration, and it used to start perfectly well. I must have a dirty injector at least, as well as one or more faulty glowplugs.
Did you fit nrand new injector? Or go for exchange?
Thanks again.

No.4 injector was new - it cost around £300 .... !
The inlet manifold had to come off to change it, as the connector couldn't be accessed.

Regarding your vibration problem:
I'm assuming that this is an erratic idling fault, so fill the fuel filter with Forte or Diesel Magic, and run it for a day or two. Hopefully, this method will shift the gremlins, and you'll not end up shelling out mega bucks like I've had to .... !
Erratic idling seems to be quite common on these beasts.

Let us know how you get on fella!
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