Question about 2005 Volvo XC90
Replaced vent hose from valve cover to crankcase noise still there
The oil trap box is plugged up. You need to remove the intake manifold and replaced the oil trap box. It is the large black box mounted against the block just behind the a/c compressor. While it's apart check the nipple that goes bolts to the underside of the intake manifold. Use pipe cleaner to make sure it's clear. Also replace both seals for the oil trap box and of course the intake manifold gasket and it's a good idea to clean the trottle body while it's all apart. Use either BG air intake cleaner (available from and BG dealer or most Volvo dealers) or Berrymans B12 carbuerator cleaner. Spray it on a rag and wipe the inside of the throttle module to clean it. don't spray to much directly onto the throttle blade, it is possible it will damage the seals inside the unit.
Hope this helps.
Posted on Feb 28, 2009
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Apr 10, 2014 | 2004 Ford F150
Apr 06, 2014 | Ford Crown Victoria Cars & Trucks
Jun 04, 2012 | 2001 Saturn SC
Jul 03, 2011 | 2000 Chevrolet Cavalier
Nov 03, 2010 | 2003 Chevrolet Suburban 1500
Mar 20, 2010 | 2003 BMW 325
Jul 10, 2009 | 2005 Volvo S40
245 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: