smoking turbo problem on 940

Feb 27th, 2006, 21:42

hope someone can help , had an oil leak from return pipe on turbo, had it fixed now keeps smoking when slowing down, seems ok when driving on the motorway, but round town clouds of blue smoke, dosent smoke when excelerating hard,

RollingThunder · Feb 28th, 2006, 08:10

Check that you haven't overfilled the oil - I had a similar problem when I replaced my turbo ... You only do it the once - I had lots of nightmares with lots of ££££s flashing before my eyes

ivor940 · Feb 28th, 2006, 08:10

Hi, try draining the intercooler, the plug is above a white plastic plate on LH side of intercooler. Oil may also be in the pipes from the turbo to the throttle valve. Also check your engine oil breather system is clear.

ivor940

Mar 1st, 2006, 19:58

Iv been told that the return pipe could be blocked ,causing back presure ,if it is were do I look for blockage.

Feb 27th, 2006, 21:42	#1
only me 58 Guest Location:	smoking turbo problem on 940 hope someone can help , had an oil leak from return pipe on turbo, had it fixed now keeps smoking when slowing down, seems ok when driving on the motorway, but round town clouds of blue smoke, dosent smoke when excelerating hard,

Feb 28th, 2006, 08:10	#2
RollingThunder Grumpy Old Git Last Online: Apr 19th, 2024 09:16 Join Date: Dec 2004 Location: South Yorkshire View Photos By: RollingThunder	Check that you haven't overfilled the oil - I had a similar problem when I replaced my turbo ... You only do it the once - I had lots of nightmares with lots of ££££s flashing before my eyes __________________ S40 2.4i '07 Japanese import '96 850R - https://www.volvoforums.org.uk/showthread.php?t=312484 Ex Danish Embassy '96 940 GLE LPT - https://www.volvoforums.org.uk/showthread.php?t=326071

Mar 1st, 2006, 19:58	#4
only me 58 Guest Location:	could it be return pipe Iv been told that the return pipe could be blocked ,causing back presure ,if it is were do I look for blockage.

Feb 28th, 2006, 08:10	#3
ivor940 Master Member Last Online: Sep 16th, 2013 07:55 Join Date: Dec 2003 Location: Malahide View Photos By: ivor940	Hi, try draining the intercooler, the plug is above a white plastic plate on LH side of intercooler. Oil may also be in the pipes from the turbo to the throttle valve. Also check your engine oil breather system is clear. ivor940

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