Ticking Noise! Volvo 850! Help...

[foggydogg]

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I'm not sure which one I should use. Also, I plan to get a premium-grade oil for my car with 5W-40 and an additive.

With cold winter weather it would be best to follow the factory oil recommendation on viscosity; my owners manuals all say 10W-30.
Seafoam is just odorless kerosene with a few other harsh chemicals, so if you're going to use it, put a little in the engine when it's warm, run it a few minutes/km, and then change to fresh oil.
I agree with the earlier comment, noisy lifters aren't a big concern, especially if the car had been sitting for any period of time.
Welcome to our little club.

[matthew1]

You're not hearing rod knock.

+1

Injectors in 850s are very loud. Put good oil in on the next oil change. If the noise is cut down, it was the lifters. Do not panic.

[MoVolvos]

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A slight chance it could be the O-Rings in the oil pan. Mine did like that but was a much sharper tick than yours but nothing close to that of the video.

How I tested mine was to do an oil change with Dino / conventional not synthetic 15W40 Diesel Motor Oil. It was Costco's which I don't see any more in the Dino 15W40 viscosity. I also added a bottle of STP Sealer. The ticking went away for an entire oil change. Went to Rotella T6 15W40 synthetic and the ticking returned once in awhile.

Try the conventional oil in a higher viscosity and if the noise quiets down you could either have a worn engine or oil pan O-Ring issue.
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STP High Mileage Oil Treatment + Stop Leak - 15 FL OZ
(www.amazon.com/STP-High-Mileage-Treatme ... =8-10&th=1)

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[BeerDeer]

The injectors on these can be pretty noisy, especially when cold. Same with the valve lifters (hydraulic I think on your car). They also get noisy when older and cold as you have it. Fresh oil should help. Maybe worth looking for a high mileage oil for older engines. Be careful with engine flushes as they can be equally good or bad. The bad is they can clean the heavier dirt of the engine internals and block pick up tubes. Same with fuel cleaners as they can clean the carbon build up that helps piston compression on older engines. Talk with your mechanic and see what he suggests.

Good Luck!

Neil.

So should I or not? I also read there's some "system fuel cleaner" instead of oil treatment. I can replace oil 100% and add some additives. I use the oil Total Quartz.

[BeerDeer]

[
I'm not sure which one I should use. Also, I plan to get a premium-grade oil for my car with 5W-40 and an additive.

With cold winter weather it would be best to follow the factory oil recommendation on viscosity; my owners manuals all say 10W-30.
Seafoam is just odorless kerosene with a few other harsh chemicals, so if you're going to use it, put a little in the engine when it's warm, run it a few minutes/km, and then change to fresh oil.
I agree with the earlier comment, noisy lifters aren't a big concern, especially if the car had been sitting for any period of time.
Welcome to our little club.

Here in Finland, they recommended 5W-40

I can also use fuel system cleaner instead of engine flush. I want the engine to last long.

[BeerDeer]

You're not hearing rod knock.

+1

Injectors in 850s are very loud. Put good oil in on the next oil change. If the noise is cut down, it was the lifters. Do not panic.

I use Total Quartz 9000

[BeerDeer]

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A slight chance it could be the O-Rings in the oil pan. Mine did like that but was a much sharper tick than yours but nothing close to that of the video.

How I tested mine was to do an oil change with Dino / conventional not synthetic 15W40 Diesel Motor Oil. It was Costco's which I don't see any more in the Dino 15W40 viscosity. I also added a bottle of STP Sealer. The ticking went away for an entire oil change. Went to Rotella T6 15W40 synthetic and the ticking returned once in awhile.

Try the conventional oil in a higher viscosity and if the noise quiets down you could either have a worn engine or oil pan O-Ring issue.
.
STP High Mileage Oil Treatment + Stop Leak - 15 FL OZ
(www.amazon.com/STP-High-Mileage-Treatme ... =8-10&th=1)

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Isn't it expensive for a shop to fix it? I paid 1k for the car, and if the job would cost me 1k... It would be easier to buy a new engine or a new car...

[misha]

5w40 or 0w40 is ok for cold climate area.
10w40 for moderate climate.

I would say that sound is from lifters.

What oil filter is in there?
Mann,Mahle(Knecht),Bosch or OE Volvo should be used.

[MoVolvos]

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A slight chance it could be the O-Rings in the oil pan. Mine did like that but was a much sharper tick than yours but nothing close to that of the video.

How I tested mine was to do an oil change with Dino / conventional not synthetic 15W40 Diesel Motor Oil. It was Costco's which I don't see any more in the Dino 15W40 viscosity. I also added a bottle of STP Sealer. The ticking went away for an entire oil change. Went to Rotella T6 15W40 synthetic and the ticking returned once in awhile.

Try the conventional oil in a higher viscosity and if the noise quiets down you could either have a worn engine or oil pan O-Ring issue.
.
STP High Mileage Oil Treatment + Stop Leak - 15 FL OZ
(www.amazon.com/STP-High-Mileage-Treatme ... =8-10&th=1)

.

.

Isn't it expensive for a shop to fix it? I paid 1k for the car, and if the job would cost me 1k... It would be easier to buy a new engine or a new car...

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Don't think that far down the line. You should try some of the other potential remedies to get rid of the sound. Difficult to diagnosis the problem online and sometimes mechanics get it wrong. Start with fresh 5W40 or 15W40 DINO diesel oil to see if the ticking is lessened or goes away. Also, add some kind of sealer in case it's the beginning of the shrinking oil pan seal.

Drive it for 500 to 1,000 miles and see if the noise stops. The DINO diesel oil will also help free up sticky lifters as it's higher in detergent. I will probably go back to DINO Diesel 15W40 for the 00 S70 SE Base. The ticking was almost none existent compared to the Rotella T6 15W40. I have not use DINO, seems forever but sometimes you have to experiment to either find the problem or solve it. In the case with my car, the oil is not only suitable but did temp stopped the shrinking oil pan O-Ring sound.

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[xanthefin]

Cars costing 1k or 10k are not to keep in money wise value as collectibles and in repairs you stop thinking car value to be honest. You either do the job or dont (want pay for the job or make the effort).

As usually you lose that imaginable money value of the car in insurances, petrol, taxes etc.. just to keep or run it anyway with any car.
Though this is just my philosophy...


BTW for tick tock sounds previous owner of my 850 had forgotten completely o rings from injectors somehow.


I would go with suggested attempt test with cleaning stuff if tapping goes away or mostly less. I would agree with misha and others here this is most likely lifters as i dont hear clonk like MoVolvos shared Rod Knock video example i do and it goes away in higher rpm unlike clonking Rod Knock.