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.

850 wagon oil leak

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Old 02-03-2007, 08:12 PM
werkhaus's Avatar
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Default 850 wagon oil leak

I am working on a 1997 5 cyl. There is a significant oil leak on the exhaust manifold side of the head. (at the corner of the #5 cylinder). Prior to the oil leak, the car had stalled out and was towed here (it's my sister's car). I found a lot of oil on top of the valve cover gasket and also in the distributor cap. The ignition was killed by the oil. 3 of the five plugs were oil soaked. I replaced the plugs, cleaned the distributor cap, cleared the fault codes (cylinder misfire codes). The car runs fine and does not miss, but the oil is coming from that side of the head at a steady clip.

Is it possible that i have an overpressurization problem in the oil system? Has anyone seen this issue happen?

I am going to do an oil pressure test, but I can't seem to find the oil pressure sending unit...where is it?

I don't know if doing a compression test will tell me anything.

Got any suggestions? I'd appreciate any and all!


 
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Old 02-03-2007, 08:17 PM
tech's Avatar
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Default RE: 850 wagon oil leak

Is it turbo or Non?
The Cam seals are common for leaking thats why the cap was soaked with oil.
But that usually happens from the Vent box being clogged.
If it is a Non-turbo clean the flame trap and make sure all hoses are free.
I would replace all 4 cam seals.
 
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