1994 Volvo 850 Logo
Anonymous Posted on Nov 29, 2012

My 1994 volvo 850 is leaking oil from the filler cap...why?

Leaking oil from the oil filler cap...

2 Answers

A

Anonymous

Clogged up PCV System ---maybe

Too much crank case pressure

  • Anonymous Nov 30, 2012

    thank you to all whom have replied and given advice. is my 1st volvo and am learning a new vehicle now,previously drove Toyota Landcrusier s

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  • Posted on Apr 06, 2013
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Hi guys, I'm new here, and am having this same problem with 1994 Volvo 850 5 cyl 20 valve non-turbo engine. According to everything I can get my hands on, this engine doesn't have a PCV system... so... now what?

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5 Related Answers

emissionwiz

Marvin

  • 85242 Answers
  • Posted on Mar 24, 2009

SOURCE: oil leak

yes this is caused by excessive crankcase pressure, check the PCV system for proper function.

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Cleverer2

  • 298 Answers
  • Posted on Mar 26, 2009

SOURCE: when the engine is running on my volvo s40

A bit of splash is normal from the slight backpressure created when the pistons go down in any engine, but might also be due to clogged PCV valve. Put the cap back on and pull the dipstick and see if you hear constant hsssssss from there, or if the oil splashing abates from the Fill hole.

As a rule, you are not supposed to open that with the engine running ;-) Very messy on a nice Volvo

My money is on the PCV valve (Positive Crankcase Ventilator ($3.00-20.00)

Anonymous

  • 714 Answers
  • Posted on Feb 14, 2010

SOURCE: oil coming out of oil filler cap when driving my

This is a serious problem. with a fairly easy fix.

First ensure that the engine is not out of oil.

You are looking for a Positive crank case ventilation valve, Seek professional help at your parts store, they should be more than happy to point it out the valve for you..

Recommend you replace it and the hose attached.

Unless you have a serious engine malfunction this will clear the oil coming out of the Dip stick.

NOTE:
These engines do tend to produce a lot of blow by but we all agree with your needed course of action to replace the valve.

r/
David .

Anonymous

  • 23 Answers
  • Posted on Mar 16, 2010

SOURCE: volvo 960 estate blowing oil from the oil filler

Your PCV / Oil trap is likely clogged. I have had some luck running Mobile 1 Synthetic oil and half a can of seafoam in the engine oil to clean things up but it is likely that you will have to replace the pcv system.

dougbender51

  • 976 Answers
  • Posted on Mar 19, 2010

SOURCE: I have just got a 1994 volvo 850, how do I undo

switch on door panel

Testimonial: "Thank you for the help, as I am in Australia I think it will be hard to get the fob, we live 500k from the nearest city."

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