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Squealing engine... S70 1998

My engine squeals loudly on start up. It gets less loud as the engine warms up. Sometimes, noise goes entirely away. I took off the T-belt, and the drive belt. Checked each pulley, roller, and tensioner, no problem. Checked A/C compressor, water pump, alternator, and P/S, all well. Replaced the two belts, and put back. Noise still there. It appears to be generating in valve train area. I listened with st. scope all around the engine, and again, no one particular area sticks out. I'm using conventional 10W 30 grade oil. Should I just replace the serpentine belt tensioner. I'm out of ideas...








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Squealing engine... S70 1998

Try replacing the oil filter with a new Mann. There are times when the valve in the filter comes loose and does that. Pulling off the filter requires you to add about 1 quart of new oil.

Why aren't you using synthetic??????

Klaus
--
Proud owner of a 220S. If I had more room, I would have more Volvos.








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Squealing engine... S70 1998

I had this happen to me a while ago. Get a new oil filter - it's a cheap way to rule that out.

a search would have turned this up:
http://www.brickboard.com/AWD/volvo/1378368/V70/strange_noise_oil_filter.html

--
1998 V70 AWD->FWD Turbo 200k+







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