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Oil pressure light takes a while to go away

Volvo S70 Made from 1998 to 2000, this sporty model replaced the 850 sedan and instantly became a hit.

Oil pressure light takes a while to go away

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  #1  
Old 04-02-2018, 07:37 PM
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Default Oil pressure light takes a while to go away

Whenever I do a cold start, the oil pressure light is always the last light on the cluster to go away. Usually it stays lit for about 3 seconds. Other than that it has no issues. It has 10w30 oil in it and the temperatures have been about 20-35 degrees fahrenheit, so not the ideal oil viscosity. Any thoughts? Also one time it was about 14 degrees out and I started it, and it made a terrifying sound. Then it sounded like the engine fan was running furiously, almost like when a school bus engine fan runs. It also has a slight squealing under the hood when cold. Once its fully warmed up it goes away. I think Iím going to have the timing belt, tensioner, and water pump replaced soon. Also thereís some oil leakage on the passenger side near the oil pan and under the timing belt area. Could this be a leaking camshaft or crankshaft seal? Any comments or advice would be appreciated.
 
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Old 04-03-2018, 08:52 AM
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First off, check the oil level. 10W30 is ok for the temperature range you mentioned. Could be some sludge buildup in the motor causing it an extra second or so to build pressure. What I would do is do an engine flush (get a can of motor flush at the store and follow the directions). Then change the oil and filter with a decent synthetic oil and go from there.
 
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Old 04-03-2018, 12:00 PM
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Oil is full. I keep it topped of. Iíll try that motor flush. I only have 1000 miles on the oil thatís in it (mobil one high mileage synthetic) but it wouldnít hurt to change it I guess. 5w30 is probably preferred in this climate because it never really gets over 75.
 
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Old 04-03-2018, 11:05 PM
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Old 04-04-2018, 08:08 AM
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On a vehicle of this age, I would recommend removing the oil pan and having it cleaned in a spray jet at a local machine shop. While you send it for cleaning, remove and send the oil pickup pipe/screen as well.

There are O rings in the oil pan that can fail over time allowing a drop in oil pressure. The job will cost you a few hours and very little money. Here's an oil seal kit that we just bought for a vehicle:

https://www.ebay.com/itm/Volvo-S60-S...72.m2749.l2649
 
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Old 05-15-2018, 09:30 PM
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Had cam seals replaced by a reputable mechanic (Independent Auto, Anchorage AK) and problem disapeared. Oil light gors out right away and slow oil leak has stopped.
 
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Old 05-16-2018, 10:28 AM
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Cam seals will not impact the oil pressure. The pressure is made in the bearing and the seal just stops the excess oil from leaking out.
 
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Old 05-16-2018, 11:25 AM
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I agree. The original problem is still there. The temperature around here has increased about 50F since your original post, so that may have helped it.
 
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Old 05-16-2018, 02:55 PM
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Temperature might be making a difference, but something is definitely helping. Iím getting an oil pan heater installed so I donít have as much of an issue when it starts getting below 20 because it hates being started and driven in that weather. I still might try the motor flush but I want to have the freshest oil possible come september, so Iím putting off the next oil change until then.
 
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