2004 volvo s40 2.4 makes a strange whistling sound around the oil system

70

Asked by Jan 04, 2014 at 06:21 AM about the 2004 Volvo S40 2.4i (2004.5)

Question type: Maintenance & Repair

the sound starts when my s40 warms-up.....when i remove the deep stick, air pressure
comes out and the sound goes off but when i replace the dipstick, the sound starts again

4 Answers

258,045

Inspect your PCV valve, it might be clogged making the system see more pressure.

3 of 3 people found this helpful.
70

will try tht Tom

1 of 1 people found this helpful.
70

Helo Tom..The Oil filter housing and the pcv valve, are they the same thing?

2 of 2 people found this helpful.
70

How do i access the pcv valve?

4 of 4 people found this helpful.

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