Question about 1998 Volvo S90

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Loud LIfters on S90 Volvo

My lifters are tapping on my Volvo. I tried a heavier oil, but they are still loud. What can I do to get them to stop tapping.

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Adjust valve lifters or it can have tappet wear

Posted on Feb 10, 2009

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if you have a stethascope or even a wood dowel i would check the lifters. if you have higher miles this sounds like a hydraulic lifter pumping up. if you change to a heavier oil it will go away or reduce. thats the cheap fix.

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Is it a big job to fix noisy lifters? I am tired of paying for repairs on this 220,000km vehicle. Now it is ticking real loud all the time.


Lifters can be easily replaced but it may be something else that is the problem. The first thing to do is get the oil pressure checked. If it's in the mid to high 20's then that is low.. Also get a compression test done. If both are low then the engine is wearing out and you would be chasing good money after bad by fixing the lifters.
A heavier oil like 15W-40 or 20W50 should quiet them down. You could also try an additive like Lucas. If you don't want to spend any large amount of money on the car it may be time to consider replacing it. Hope this helps.

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98 TAHOE VORTEC 350 JUST REBUILT REPLACED EVERYTHING BUT CAM AND LIFTERS NOW IT HAS A LOUD LIFTER TAP AFTER IT WARMS UP.I WAS TOLD BY THE MACHINE SHOP THAT THESE ROLLER CAMS AND LIFTERS DONT WEAR OUT .I...


As far as I know all hydraulic lifters can go bad, collapes or stick. And yours are definately hydraulic lifters, rollered yes, which will make them more durable, but they can go bad. The machine shop should have down a leak-down test on the lifters. That is the only way to determine if the lifters are good. I would check that you have proper oil pressure, I'm sure you do. I bought a "rebuilt head" for a Saturn DOHC engine, and the machine shop never did a leak down test on the lifters, and I had the samething happening.

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Lifters sound like they are bleeding down. Try changing the oil with a multi viscosity oil. chk oil Pressure. If lifters are over adjusted the lifters can't pump up properly or retain the oil properly

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S90 1998


If there that noise you better look a little deeper inside engine like oil pump going bad. try some lucas, or stp that might help.

Feb 09, 2009 | 1998 Volvo S90

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