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I have fors focus zetec tdci 1.8. every time i start from cold it gives out alot of white smoke from exhaust and judders when i drive it. this lasts for bout 10-15min then it drives ok. wen management light came on it said egr valve so i have had new one fitted with new manifold...BUT..same thing happening?? what else could it be?? its cost me a fortune up to now. Pls help.

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  • Cars & Trucks Master
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You may need a diagnostic computer to read some codes and figures here.

Try checking the condition of the air intake temperature sensor.
Also check the condition of the mass air flow sensor.

That's assuming your engine is alright though, but there is also a chance that you may have a blown head gasket or cracked cylinder wall. To check, you will need to perform a pressure test on the cooling system. If you are losing pressure and collant, then this could likely be your issue.

Posted on Nov 04, 2012

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Posted on Jan 02, 2017

  • 350 Answers

SOURCE: X type lose of power +white smoke

hi its not the egr valve white smoke indicates water combined with loss of power indicates headgasket oil blow back faulty pcv or piston rings worn yates210456

Posted on Oct 08, 2008

alicantecoli
  • 22114 Answers

SOURCE: ford focus 54 tdci 1.8

pull the pipe off the valve that connects the exhaust to the inlet manifold

Posted on Dec 06, 2008

SOURCE: white smoke out the exhaust

hi white smoke is from coolant in the cylnders bed head gasket.blueish white smoke is oil in the cylnders either bad valve seals or bad piston rings.must rebuild engine or heads.

Posted on Feb 14, 2009

jagjeffery
  • 318 Answers

SOURCE: Exhaust smoke - 1994 XJ6 4.0

you have bad valve seals again and it is possible that the valve guides are bad ( to much play ) i worked for Jaguar 13 years and i have done 100's of these and very few needed guides it sound like the seals where not done correctly at the last repair.

Posted on May 29, 2009

venexcsd
  • 1185 Answers

SOURCE: FOCUS 1.6 ZETEC CLIMATE TDCI 2006- FAULT CODE P242F

If the cat was blocked you would have noticed a massive power loss and your speed would have been down to - 40kph

If that was the case then yes the cat has collapsed and needs replacing

Posted on Jun 30, 2009

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