T 25 1.6 td slow hill climb - Smoke Tales - VWDiesel.net The IDI, TDI, and mTDI source.

• T 25 1.6 td slow hill climb by ChrisD on 20 May, 2015 10:19
• Hi this is my first pos so probably in the wrong place but here is the problem.
  I have changed the fuel lines as there were bubbles in the deisel and the fuel and oil filter which improved the situation, but its still strugling on hills and send out black smoke not too much but its there. I think it's a Turbo problem. Any ideas as to how I can sort this out?
• #1 by theman53 on 20 May, 2015 12:54
• Black smoke usually means you have fuel.
  
  It is a diesel, black smoke is somewhat normal, you can adjust the fuel if that is all it is. Also, if this is the first one you have owned, it is not a gas car and if you are taking a hill in top gear at 35 you just need to downshift and it will go away.
  
  If you suspect turbo take the intake boot off and try to see if you get wiggle in the shaft. If you do have in and out play then I would take a really good look at the turbo or send it out for inpection/rebuild.
• #2 by TylerDurden on 21 May, 2015 07:41
• I'd tee into the boost line to the injection pump with a long line to a boost gauge in the cabin. See if the turbo makes boost on a steep hill.
  
  Low boost will likely result in sooty smoke. ~10psig is normal.
  
  And as noted above, heavy loading or lugging the engine can result in some sooty smoke.
• #3 by the caveman on 23 May, 2015 11:24
• try to go downhill more ? ( sorry)
• #4 by deepgrooves74 on 25 May, 2015 10:43
• Quote from: the caveman on 23 May, 2015 11:24

  try to go downhill more ? ( sorry)
  

  
  Really...
  
  I unfortunately thought that this was quite funny
• #5 by Sansu on 06 Sep, 2015 21:42
• Quote from: TylerDurden on 21 May, 2015 07:41

  I'd tee into the boost line to the injection pump with a long line to a boost gauge in the cabin. See if the turbo makes boost on a steep hill.
  
  Low boost will likely result in sooty smoke. ~10psig is normal.
  
  And as noted above, heavy loading or lugging the engine can result in some sooty smoke.
  

  
  
  right and possible
• #6 by JameBUYv on 05 Jan, 2019 12:17
• I have seen that crazy looking purple/yellow car at the Rob Roy Hill climb a couple of times.
• #7 by seamaster301 on 13 Aug, 2019 06:00
• Did you ever find out what was causing the power issue?
• #8 by ernst60 on 10 Nov, 2021 13:25
• 
  Hello, it is probably fuel because the black smoke means that the fuel needs to be adjusted and it should be good to set the pressure right, I had the same problem, I set the injectors to the same pressure and now it is good, but in another car