How one repair can save thousands

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The Volvo oil trap is often overlooked and most people have never heard of it, but if it's not replaced every 100,000 miles it can wreak havoc on your checkbook.

You may be asking yourself what is an oil trap? Where is it located? Why do i need to replace it?

What is it? Those of us over a certain age remember older cars having a PCV valve (Positive Crankcase Ventilation). The Volvo oil trap accomplishes the same thing as a PCV valve which is allow the engine to breath. You may not know this but the combustion engine needs air coming in and therefore air going out. When the air cannot escape it builds up pressure in the engine and (pay attention this is where it can cost you a lot of money) it seeks other places to release air which means losing air and oil via the exhaust pipe which is not a good thing or it will find the weakest and often the hardest to get to oil seal and cause a leak. Leaking oil seals, especially the ones in very hard to get to places such as the rear main seal which requires you pull the transmission lose from the engine can cost you thousands of dollars in repairs. 

Common symptoms of a stopped up oil trap are:

Oil leaks which can be seen below the engine or on top of the valve cover is common too. Look at the oil fill cap on top of the engine and look for oil residue. Also look at your engine oil dipstick for leaks.

Engine Oil dipstick pops out of the pipe and keeps doing it every time you run the engine. This is a very common sign as the air pushes up the oil dipstick which is held in place by two o-rings. If the engine builds up enough internal pressure it will push up the oil dipstick to release air. 

Losing oil via the pistons rings which will cause smoke to come out of the exhaust pipes and if this condition persists your oil level will drop which can cause the engine oil warning light to come on

Bad gas mileage. All of this air building up in the engine fights against the normal operation of the crankshaft rotating, pistons pumping up and valves opening which can seriously cost you a lot of money at the gas pump.

Engine idles rough and runs bad. Unfortunately by the time you reach this stage the oil trap issues have probably cause severe damage to internal engine parts and oil seals. I'm not saying it can't be improved by changing the oil trap, flushing the oil system and adding fully synthetic oil but trust me miles have been taken off your engines life. 

Where is it located? This is fairly easy to explain because on just about every Volvo model the oil trap is located to the side of the engine block underneath the intake manifold. A few exceptions are when the oil trap is actually built into the oil filter box on Volvo C30, C70 2006-Up, S40 2004.5-Up and V50 models. 

Your probably want to know how to replace it and what parts are required? In varies slightly but most often you need an oil trap, intake gasket, oil trap to valve cover hose, oil trap to block seal and any hose that upon inspection looks cracked, brittle or has holes already caused by hot burning oil and air trying to escape. In most cases you will need to remove the intake manifold just to reach the oil trap and then the actual removal of the oil trap and parts are very easy and using only require a ratchet and socket to remove the 4-5 screws and a screwdriver for the hose clamps.

Why do I need to replace it every 100K? Not only does Volvo recommend you replace it every 100,000 miles but that is often when we see customers calling us asking for help and describing the syptoms I outlined above. This is one part you do not fudge and push it off for another 5-10K miles or you may live to regret it. OK the reason why it has to be replaced is because oil and oil residue (gunk is the official term) starts to build up in the oil trap and eventually in the oil trap hoses and creates a blockage which stops up the engine so it cannot breath. In the old, old days engines had a breather cap located on the valve cover and the air/oil mixture just came out the cap and you would wipe up the oil residue off your valve cover. The PCV system came out in the 60's which allowed the engine to exhale via a large vacuum hose and the PCV valve would open at the right time and let the air go back into the engine sort of recycling the air yet allowing the engine to breath. For the sake of the global environment Volvo created a better system that would collect all gunk into a box, preventing it from escaping into the atmosphere and you simply change the box out just like other filters during scheduled maintenance. The problem is (as I see it) consumers are not as informed about this as there are about oil and air filters and therefor costly repairs that could have been avoided catch them by surprise. 

PCV Valve
Part Number: 8692211
Volvo Volvo
Other Names: Oil Trap
Description: XC90. 2.5l.
Fits:
  • Volvo:
    • XC90
MSRP $63.64
$50.90
MSRP $63.64
$50.90
PCV Valve
Part Number: 9497454
Volvo Volvo
Other Names: Oil Trap
Replaces: 1270548
Description: XC90. 2.9l.
Fits:
  • Volvo:
    • XC90
MSRP $63.64
$50.90
MSRP $63.64
$50.90
PCV Valve
Part Number: 30720100
Volvo Volvo
Other Names: Vent Valve, Valve
Description: 4.4L.
Fits:
  • Volvo:
    • S80,
    • XC90
MSRP $97.53
$78.01
MSRP $97.53
$78.01
PCV Valve
Part Number: 31430866
Volvo Volvo
Other Names: Check Valve, Emission Check Valve
Replaces: 31375329
Fits:
  • Volvo:
    • S60,
    • S60 Cross Country,
    • S80,
    • S90,
    • V60,
    • V60 Cross Country,
    • V90,
    • V90 Cross Country,
    • XC40,
    • XC60,
    • XC70,
    • XC90
MSRP $56.37
$45.09
MSRP $56.37
$45.09
PCV Valve
Part Number: 31480753
Volvo Volvo
Other Names: Check Valve
Description: All Required.
Fits:
  • Volvo:
    • S60,
    • S90,
    • V90 Cross Country,
    • XC60
MSRP $56.37
$45.09
MSRP $56.37
$45.09
PCV Valve
Part Number: 30757883
Volvo Volvo
Other Names: Check Valve
Description: S60. 2.5l.
Fits:
  • Volvo:
    • S60,
    • S60 Cross Country,
    • V60,
    • V60 Cross Country,
    • XC60,
    • XC70
MSRP $56.37
$45.09
MSRP $56.37
$45.09
PCV Valve
Part Number: 30677524
Volvo Volvo
Other Names: Check Valve
Description: S40, V50. C30. 2.5L turbo. C70.
Notes: Included with air mass sensor.
Fits:
  • Volvo:
    • C30,
    • C70,
    • S40,
    • V50
MSRP $56.37
$45.09
MSRP $56.37
$45.09
PCV Valve
Part Number: 32222712
Volvo Volvo
Other Names: Check Valve
Description: All Required. S60. Barbed.
Fits:
  • Volvo:
    • S60,
    • S90,
    • V90 Cross Country,
    • XC60
MSRP $56.37
$45.09
MSRP $56.37
$45.09
Valve Cover
Part Number: 31319643
Volvo Volvo
Other Names: PCV Valve, Cover, Engine Crankcase Vent Valve, Oil Trap
Replaces: 30757664, 30788442, 30788484
Description: XC60. S60. S80. 3.0l. 3.0L turbo. Oil trap cover. V60. V70, XC70. 3.0l. Oil Separator.
Fits:
  • Volvo:
    • S60,
    • S80,
    • V60,
    • XC60,
    • XC70
MSRP $265.51
$208.93
MSRP $265.51
$208.93
Hose
Part Number: 31437139
Volvo Volvo
Other Names: PCV Valve Hose, Vent Hose
Replaces: 31316185
Description: 2.0L. with supercharger.
Fits:
  • Volvo:
    • S60,
    • V60,
    • V60 Cross Country,
    • XC60
MSRP $53.38
$42.69
MSRP $53.38
$42.69
Hose
Part Number: 32222162
Volvo Volvo
Other Names: Vent Hose, PCV Valve Hose
Replaces: 31319891, 31430407
Description: 2.0l.
Fits:
  • Volvo:
    • S60,
    • S60 Cross Country,
    • V60,
    • V60 Cross Country,
    • XC60,
    • XC70
MSRP $63.64
$50.90
MSRP $63.64
$50.90
PCV Valve Hose
Part Number: 8653327
Volvo Volvo
Other Names: Tube
Description: Crankcase vent.
Fits:
  • Volvo:
    • S40,
    • V40
MSRP $241.30
$206.07
MSRP $241.30
$206.07
Valve Cover
Part Number: 31319642
Volvo Volvo
Other Names: Oil Trap
Replaces: 30731234, 30757662, 30788481
Description: XC90. XC60. 3.0l. From ch# 38882. V70, XC70. To ch# 38881.
Fits:
  • Volvo:
    • S80,
    • V70,
    • XC60,
    • XC70,
    • XC90
MSRP $265.51
$208.93
MSRP $265.51
$208.93
Engine Crankcase Vent Valve
Part Number: 31480754
Volvo Volvo
Other Names: Valve Cover, Engine Valve Cover, Cover, Oil Trap
Description: Oil Separator. 2022 without supercharger. S90. Without hybrid. V90 Cross Country.
Fits:
  • Volvo:
    • S60,
    • S90,
    • V90 Cross Country,
    • XC60
MSRP $215.58
$169.64
MSRP $215.58
$169.64
Engine Valve Cover
Part Number: 32140004
Volvo Volvo
Other Names: Valve Cover, Cover, Oil/Air Separator, Engine Crankcase Vent Valve, Oil Trap
Replaces: 31316184, 31430236, 31430923, 31670210, 32242753
Description: Genuine Volvo Engine Oil trap cover fits  S60 S90 XC90 V90 XC60 AND XC40.
Fits:
  • Volvo:
    • S60,
    • S60 Cross Country,
    • S80,
    • S90,
    • V60,
    • V60 Cross Country,
    • V90,
    • V90 Cross Country,
    • XC40,
    • XC60,
    • XC70,
    • XC90
MSRP $215.58
$169.64
MSRP $215.58
$169.64
Oil Trap
Part Number: 1271652
Volvo Volvo
MSRP $49.92
$43.33
MSRP $49.92
$43.33
Oil Trap
Part Number: 1271988
Volvo Volvo
MSRP $63.64
$50.90
MSRP $63.64
$50.90
Oil Trap
Part Number: 30622235
Volvo Volvo
MSRP $139.62
$110.76
MSRP $139.62
$110.76
Oil Trap
Part Number: 8670306
Volvo Volvo
MSRP $101.64
$88.23
MSRP $101.64
$88.23
Oil Trap
Part Number: 6842597
Volvo Volvo
Replaces: 3507753
MSRP $157.50
$134.51
MSRP $157.50
$134.51
Oil Trap
Part Number: 1306398
Volvo Volvo
MSRP $53.38
$42.69
MSRP $53.38
$42.69
Oil Trap
Part Number: 31338023
Volvo Volvo
Replaces: 8642185
MSRP $97.53
$78.01
MSRP $97.53
$78.01
Oil Trap
Part Number: 31338024
Volvo Volvo
Replaces: 8653042
MSRP $97.53
$78.01
MSRP $97.53
$78.01
Oil Trap
Part Number: 32298714
Volvo Volvo
MSRP $215.58
$169.64
MSRP $215.58
$169.64
Oil Trap
Part Number: 9146756
Volvo Volvo
Replaces: 9146309
MSRP $49.92
$43.33
MSRP $49.92
$43.33
Oil Trap
Part Number: 1271650
Volvo Volvo
MSRP $42.41
$36.82
MSRP $42.41
$36.82
Oil Trap
Part Number: 31319991
Volvo Volvo
Replaces: 30731072
MSRP $139.62
$110.76
MSRP $139.62
$110.76
Oil Trap
Part Number: 3501160
Volvo Volvo
MSRP $63.64
$50.90
MSRP $63.64
$50.90
Oil Trap
Part Number: 6842718
Volvo Volvo
MSRP $41.06
$32.84
MSRP $41.06
$32.84
Oil Trap
Part Number: 9135643
Volvo Volvo
MSRP $63.64
$50.90
MSRP $63.64
$50.90

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