had my car looked at and mechanic said the oil separator gasket was bad? Is that what it is actually called? I tried to search it on autozone/oreilly's websites but nothing is coming up. Is it under a different name?

 

Not a gasket, but the separator itself. Advance/ autozone/ o'reillys won't have this part. This is a common problem on these cars, and if left unrepaired, will lead to rear main seal failure, which is VERY expensive to fix. This is referred to on most Volvo forums as the PCV system. The best place to get the required parts is FCPgroton or IPD. These companies sell complete PCV system kits that include all parts that are likely to be clogged or brittle. The kits run between $100 and $150, depending on year and engine, and include everything. There are lots of DIY writeups on here for this repair, so I won't go in to detail, but here are some suggestions:

1. The clamps that come with the kit are the best, but if you don't have the tool to install them, normal "worm" type clamps will work, just don't overtighten them.

2. Make sure you clean out the holes in the block where the oil separator (also called an oil trap) attaches. Use a skinny bottle brush and some solvent, and make sure that the holes are cleaned out all the way down.

3. Change the oil afterward- your oil will be contaminated with cleaning solvent and carbon/ grit from the cleaning process.

While you're at it, change the oil cap seal as well. It's probably leaking.

 

ok thanks!