Question about 1992 Dodge Colt

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92 colt 1.5l, Air pressure from oil cap

Hi all,
I just picked up a 92 colt 1.5l for a work car. It runs beautiful and only has 73,000 miles. I noticed that the car has a significant amount of air coming out the oil fill cap when initially started then 15 seconds later the air REDUCES to the equivelant to lightly blowing on your hand. I replaced the PCV valve, it does not burn oil or antifreeze. Is this normal? What else can I check? I do not understand why there is alot of air at start and only a little 15 seconds after the car has been started??? Stuck or cracked compression ring maybe?

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  • ericjones192 Mar 05, 2009

    Thanks 66 chrgr for responding, but this seems abnormal, is something wrong in the cylinders, or is there a smog equipt problem? Thanks

  • mike loshbough
    mike loshbough May 11, 2010

    dont worry about it some systems pressure rise in different ways



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Hello, It sounds as if it may indeed be a broken ring. It is getting compression inside the motor called blow-by. My suggestion would be as long as it doesn't use oil or give any other problems, I would drive it.

Posted on Mar 05, 2009


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