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My audi19 tdi if I let it stand for a while then I have to crank it several times before it starts,n clouds of black smoke comes from da exhaust,what can n da problem

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  • 149 Answers

Should have glow plugs installed.
try leaving the ignition on for a few seconds rather than cranking.
leaves time for the plugs to warm up.
may need replacing.

Posted on May 13, 2014

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Posted on Jan 02, 2017

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SOURCE: black smoke from exhaust

This is almost certainly a split hose - mine was the large hose coming out of the bottom of the EGR valve.

Speaking to a parts guy at my local Jaguar dealer, he said that the new part is uprated as Jaguar are aware that this is a problem.

The split allows more air in and results in the ECU changing the mixture and over fuelling - Black smoke is an indication of un-burnt Diesel. As well as the black smoke you may also notice a whistle/whine or sucking noise when you accelerate and a lack of power / lumpiness at around 2000rpm.

Hope that helps!

Graham

Posted on Aug 01, 2008

  • 225 Answers

SOURCE: 2006 VW tdi black smoke while accelerating

Hi
The only sensible way forward is to get a list of fault codes from the onboard diagnostic system and take it from there. You could either go to a VW dealer, or if you are technically minded you could buy a £15 interface cable, download some free "VAG diagnostic software" and run it on a portable computer.
There are lots of possible reasons for the problem and guessing will not really help. If these suggestions turn out to be sound, please give my reply a "Fixya!"rating, If they do not, please hold off rating and add a comment with more details so I can try to help you further. Cheers, D

Posted on Dec 02, 2008

  • 1 Answer

SOURCE: toyota hilux surf problem

hi there, i had exactly the same problem with mine. all i did was to turn up the diesel pump a little. cheers d

Posted on Mar 02, 2009

  • 44 Answers

SOURCE: smoking caddy van 1.9 tdi

Check the oil fill cap and the radiator cap, see if you have a milky scum accumulation on either one, can indicate a blown head gasket or a cracked cylinder where the oil is burning and allowing water intothe hot cylinder which causes white smoke to be emmitted from tailpipe.

Posted on Sep 29, 2009

  • 1 Answer

SOURCE: It is sometimes hard to start my jetta tdi. When

It is hard starting my VW 2003 Jetta. It usually take 5 to 10 cranking before it turns over. Then it run normally. It only happens when the car has not been driven for about 6 hours.

VWjase

Posted on Feb 16, 2010

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Hi Whitneyford
Your priblem sounds more like the glow plug timer relay than the exhaust. White smoke after start up is a sign of diesel entering the exhaust before it has burned completly. This is as a result of the glow plugs switching off too early, which is usually caused by one or more faulty glow plugs or a faulty timer.With engine COLD, IGNITION ON... Check voltage with all 4 plugs connected. You should have a reading of 10--12 volts
If there is no power, check in-line fuse on loom coming to plugs.
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The glow plug light is often NOT accurate (even with a new timer unit fitted) as to the time of heating, and you will almost certainly find that power will flow to the plugs for quiet some time after the light goes out. This is not unusuall with The Jetta Tdi.
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