Volvo 850 Made from 1993 to 1997, this Volvo line was available in both a wagon and a sedan, both with were graced with several trim levels.

the black spark plug cover thing

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Old Oct 1, 2009 | 11:40 PM
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Default the black spark plug cover thing

the plastic piece with the 6 torx bits covering the spark plugs, am i able to drive with that cap off? i jsut wanna do some painting and wondering if its safe to drive without that cover on?
 
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Old Oct 2, 2009 | 05:19 AM
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The plastic cover is nothing more than a cosmetic addition to the engine; you can drive without it. Be careful not to strip the Torx screws.


JPN
 
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Old Oct 2, 2009 | 08:12 AM
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While you have the cover off, look for signs of oil leaking from the oil filler cap and collecting by the plug wires.
 
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Old Oct 2, 2009 | 09:07 AM
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Originally Posted by Psaboic
While you have the cover off, look for signs of oil leaking from the oil filler cap and collecting by the plug wires.


this is a true fact, there is oil leakage, how can i go about fixing that??
 
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Old Oct 2, 2009 | 09:33 AM
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The oil leakage can be cause by two things.

1) The seal on the oil cap going bad, which is a very easy fix.

2) The PCV clogging up, which is a much more involved job and will cost more.

I would change the oil filler cap seal first and see if that stops it. If it doesn't, then start looking at the PCV system.
 
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Old Oct 2, 2009 | 10:33 AM
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ok i'll see wat i can do, also can i drive without my throttle cap on? that big plastic piece? i'm gunna assume thats also cosmetic stuff?
 
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Old Oct 2, 2009 | 07:17 PM
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Do you mean the air filter box?
 
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Old Oct 2, 2009 | 07:21 PM
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The throttle body/vacuum tree cover, yes, that's cosmetic too. Actually a lot of people who tune their cars remove both of those items. I will.
 
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Old Oct 3, 2009 | 08:36 PM
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As for the oil on top of the motor near the spark plug wires... You can also check your PCV system by pulling the oil dip stick out about 3 inches after you take the car for a drive. If the system is plugged up it will likely blow smoke out of the dip stick like the top of a steam engine train. You have to check it with the engine running.

On my daughters S70 the blockage actually popped the dip stick out while she was driving.
 
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Old Oct 3, 2009 | 08:47 PM
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Originally Posted by rspi
As for the oil on top of the motor near the spark plug wires... You can also check your PCV system by pulling the oil dip stick out about 3 inches after you take the car for a drive. If the system is plugged up it will likely blow smoke out of the dip stick like the top of a steam engine train. You have to check it with the engine running.

On my daughters S70 the blockage actually popped the dip stick out while she was driving.
Uhhh, it's actually 4 inches. 3 inches doesn't give you a definitive reading.



And that had happened to me too because of a clogged PCV. POP GOES THE DIP STICK!
 
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