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1988 Volvo 740 Smoke from Oil Cap and Dipstick hole when removed

I have a 1988 Volvo 740. Recently, I have been having an issue of oil leaking from the fill cap (I think it started happening after I used STP Leak Stop). The mechanic cleaned out some vacuum hoses at the oil change and it basically stopped. Now it is leaking a little from one of the bolts on top of the engine, but there is also smoke coming out of the cap when I open it, and from the dipstick hole when the stick is out. There are also fumes in the car, and I have to leave the windows open. I spoke to a mechanic yesterday on the phone, and he told me that I should replace the flametrap and the plastic pieces that go with it, and possibly the breather box, and it should resolve my problem. I mentioned this to my local mechanic today, and he said that because when he takes off the vacuum hose, there is a bluish gas smoke from the compressor coming out, he knows that the engine is finished (probably piston rings), and has nothing to do with blockage.

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He's right. you have 2 options, replace motor or rebild it. either way it's not cheap. good luck

Posted on Mar 12, 2009

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good morning and welcome to fixya
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