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Home > Technical > Blue smoke when starting from cold |
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chicken george Member Since: 05 Dec 2007 Location: N. Yorks Posts: 13291 |
after Ive tested my sniper rifle on him At work
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1st Dec 2010 8:34 pm |
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AndyC Member Since: 30 Nov 2007 Location: Where the snow dosen't melt when the sun is shining! Posts: 4165 |
Agreed BD - best we move on and ignore those other two silly chappies Ill test the cold start tomorrow morning, Freely has been standing still for several days and it been between -10 and -12C the last few days. Will also look for the blue smoke that has been mentioned, but its mostly over Yorkshire farmland and Aberdeen so it seems 2007 Freelander 2 HSE TD4 Manual with Premium Pack & Moonroof. Stornoway Grey with Ebony Black Pleather, Clear Indicators, Body Side Mouldings etc. |
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1st Dec 2010 9:12 pm |
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Dave Member Since: 04 Jul 2007 Location: Somewhere Near You Posts: 2666 |
Sorry, no blue smoke here except that from an english norwegian roasting on a spit ______________________
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1st Dec 2010 9:41 pm |
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EYorkshire Member Since: 18 Nov 2010 Location: (!) Posts: 4392 |
Can I just say that "workarounds" should not be needed, if it doesn't start using the correct procedure and it's blowing smoke then there's something wrong
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2nd Dec 2010 7:26 am |
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Big Dave Member Since: 22 Nov 2009 Location: Yorkshire Posts: 1055 |
The fact about all the fancy gadgets like button start and the like is that someone who knows how to do everything properly, can do it more effectively, especially in this case. It's not hard to wait for a light to go off. A computer can't decide on the best course of action all the time as it can't take everything into account like a human. If my car had been parked in -20 for 2 days then I wouldn't expect it to start on standard diesel, but the car would turn the engine over until the battery's flat.
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2nd Dec 2010 1:18 pm |
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AndyC Member Since: 30 Nov 2007 Location: Where the snow dosen't melt when the sun is shining! Posts: 4165 |
EYorkshire: Cant agree more Today it was -10C and Freely has been parked for at least 4-days in temperatures between -7C and -10C. Today I tried the correct (LR suggested) method of starting. Pressed the start button and Freely fired up after exactly 9 seconds and there was no blue, grey, black or any other unnormal smoke from the exhaust. The trip counter remained unchanged as it should.
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2nd Dec 2010 2:10 pm |
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Big Dave Member Since: 22 Nov 2009 Location: Yorkshire Posts: 1055 |
Sorry AndyC, should've said we don't use winter diesel over here. anything less than -15 it turns to a syrup type consistancy but the car wouldn't know this and just flatten it's battery trying to start! Mine: 2012 Golf GTI Edition 35
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2nd Dec 2010 2:27 pm |
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ad210358 Member Since: 12 Oct 2008 Location: Here and There Posts: 7464 |
I understood that UK Winter Diesel had was on the forecourts from the end of October thriugh till March time. |
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2nd Dec 2010 7:33 pm |
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EYorkshire Member Since: 18 Nov 2010 Location: (!) Posts: 4392 |
It's an Act of Parliament
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2nd Dec 2010 7:49 pm |
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AndyC Member Since: 30 Nov 2007 Location: Where the snow dosen't melt when the sun is shining! Posts: 4165 |
Maybe BD has been saving his summer diesel 2007 Freelander 2 HSE TD4 Manual with Premium Pack & Moonroof.
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2nd Dec 2010 8:13 pm |
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AndyC Member Since: 30 Nov 2007 Location: Where the snow dosen't melt when the sun is shining! Posts: 4165 |
Today I tried the alternative method. Freely had been standing all night in -10C. Key in the hole, pushed the start button (without depressing the clutch) until the glow plug indicator came on and went off again after about 10 seconds (didn't get to time it exactly) pushed the clutch and the start button again and Freely started immediately. No blue or any other smoke from the exhaust. Total time from start to Freely was running took several seconds longer because of the extra operation, but the cranking sound and starting up was the same with both methods. Conclusion: The alternative method did not had any benefits over the correct method of starting Freely in -10C. Start up time is basically the same as using the correct method and Freely will not fire up until the glow plugs have done the job. Unless proven otherwise the alternative method did not have any benefits over the correct method and in fact took a little longer because of using two operations instead of the intentional one. Will try the alternative method again and time it properly next time, but to be honest the whole point of the Land Rover recommended "one push button start", works perfectly in -10C without any smoke or problems with trip counters. If anybody gets the chance to try both start methods when it really gets cold (at least -20C) it would be interesting to get a report on the results. 2007 Freelander 2 HSE TD4 Manual with Premium Pack & Moonroof. Stornoway Grey with Ebony Black Pleather, Clear Indicators, Body Side Mouldings etc. |
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3rd Dec 2010 3:24 pm |
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DiscoGeorge Member Since: 20 Nov 2010 Location: Pretoria, South Africa Posts: 193 |
Hi mudflap this puff of blue smoke when very cold is normal. You will normally observe this at temperatures of 0 down to -25 degrees. Below that to start the motor can become a mission without pre-heater (also for the diesel). I agree with Big Dave to start one of those big diesels when it is very cold is a spectacle in itself. We used to have a pump with NOX injection in the cab. But you could only use it with the engine cranking. Otherwise there was the risk of bending a con rod. With kind regards DiscoGeorge 1998 Disco1 ES 300Tdi with twin TrueTracs 2005 Disco3 TDV6 S And some more serious stuff |
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3rd Dec 2010 4:46 pm |
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AndyC Member Since: 30 Nov 2007 Location: Where the snow dosen't melt when the sun is shining! Posts: 4165 |
Hi DG - I have just mentioned there is NO blue smoke on start up - Do you mean therefore I maybe have a problem with my Freely 2007 Freelander 2 HSE TD4 Manual with Premium Pack & Moonroof.
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3rd Dec 2010 4:49 pm |
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DiscoGeorge Member Since: 20 Nov 2010 Location: Pretoria, South Africa Posts: 193 |
Hi ajuniper this is one of the symptoms when trying to start the car with a partially discharged (and probably sulphated) battery. One of the main problems in such a situation is that the cranking speed of the motor is reduced. Also incorrect signals from the various sensors as a result of insufficient system voltage will add to the problem. With kind regards DiscoGeorge 1998 Disco1 ES 300Tdi with twin TrueTracs 2005 Disco3 TDV6 S And some more serious stuff |
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3rd Dec 2010 5:10 pm |
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