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Astra 1,7 cdti

Air blowing out when oil filler cap removed

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A breather locked won't blow air throw the cap,most likely is from the pistons,leaking compression,if some (little) smoke is coming out tooSmoke may appear at the oil dipstick also.(...)Must considerate that the air is going out-in when cap removed...do not missinterprete as air blow.Residual oil (or oil vapor) may splash also,this is not smoke.

Posted on Oct 21, 2013

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Yeah, it's supposed to do this, so keep the cap on when the engine is running

Posted on Oct 21, 2013

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Automatic - overheating blowing coolant

Most likely the thermostat is sticking. Get the system flushed (get that rusty liquid out of the system), replace the thermostat & put in new coolant. Should fix it.

Posted on Sep 16, 2008

stormbrewin
  • 426 Answers

SOURCE: the oil is running out from the oil filler cap

Make sure the pcv valve is working correctly and allowing the engine to breath

Posted on Nov 20, 2008

alicantecoli
  • 22219 Answers

SOURCE: peugeot 405 oil blows out of the oil filler

yes their is a breather pipe but if its that bad then either its completly blocked or you need a engine rebuild.The breather is on the front of the engine with a pipe running to the air intake and the dip stick is in the top

Posted on Mar 05, 2009

  • 1 Answer

SOURCE: engine blowing oil from oil filler cap

I had the same problem. I changed the pcv valve and checked the hose. It still did the same thing. Then I checked the metal tubing that the hose connects to and found it was full of hardened gunk. I sprayed PB Blaster into the tube let it soak for awhile. Then took an old choke cable, put it on a drill and ran it into the tube like a drain snake. It took a while of doing this over and over but eventually got it cleared out. Now, no more oil all over the engine and hood compartment.  

Posted on Mar 21, 2009

  • 1 Answer

SOURCE: bmw 318is air comes out of the oil filler cap

Normal, inspect the PCV valve if it seems excessive and you might have some blow by too.

Posted on Apr 23, 2009

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High presser in tappit cover volvo 84 gl



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Well -doing that sort of takes out the PCV System
doesn't it

Unmetered air comes in the oil fill hole & gets drawn into
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You also got PCV system issues with high vacuum

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