volvo s60 2.4 -01 . what ratling noise?

jonchu · Post by **jonchu** » 01 Jul 2018, 10:10

My car makes somekind of ratling noise or what can you call it in the engine are under the hood . When i cold start my car it makes it and it lasts for abit and goes away aftrr driving a little. And when the engine is warm an i park it for about 30mins - 2hours it can be heard again when i start to drive... Does any1 know what it could be or what makes the noise. Here is a link where is the video where you can hear it.. if the video buffer slowly you can download it... Plz help i have had this noise for a long time. Thx

https://aijaa.com/Z4hAcz

Post by **oragex** » 01 Jul 2018, 11:46

I would adventure and put three options: valve ticking, pulley chirping, exhaust flexible leaking. Maybe upload a video with the engine bay ? You may use - with caution - a longer hose and keep one end at the ear with the other approaching it to various engine areas (watch out for the moving belt/pulleys)

jonchu · Post by **jonchu** » 01 Jul 2018, 12:18

If its valve ticking is it dangerous? Ill try to get more videos but when i open the hood the sound cant be heard that well.

Post by **oragex** » 01 Jul 2018, 15:44

Less probable a valve as it doesn't seem to follow the engine revs when you were revving the engine. I wouldn't worry, but it's good to inspect the pulleys to be safe. Since with the hood open the sound is less clear, makes me think more at an exhaust issue (behind the engine there is an manifold heat shield that may rust and break free from the securing bolts and rattle)

Uploading on Youtube can also help others see it as that site is indeed very slow

jonchu · Post by **jonchu** » 02 Jul 2018, 11:03

How many bolts is on the manifold shield thats attached to the catalysator? Is it easy to take off and check it and put back on? Here is a another video that i took from under the hood.

https://aijaa.com/MwIQX5

Post by **oragex** » 02 Jul 2018, 11:24

The metal plate over the exhaust manifold right in front of the firewall has two bolts at the bottom that rust

Try removing the oil cap on top of the engine (may spill or leak some oil so be ready to clean it up with some cloth) and try hearing at the opening for a loud metallic ticking.

While there see this for your non turbo engine www.youtube.com/watch?v=gOx3Q8vqoz4

jonchu · Post by **jonchu** » 02 Jul 2018, 13:43

Are there 2 at the bottom and 4 or 5 bolts on the engine and easy to take of and put back on ?

Post by **oragex** » 02 Jul 2018, 14:06

The plate seems to be fixed to the exhaust manifold bolts at it's upper part, then with two bolts at it's lower part where it tends to rust around these bolts and break free. I don't think it's easy to replace it, mine I just bent it upwards at it's lower part so as not to come in contact and rattle against the manifold

jonchu · Post by **jonchu** » 03 Jul 2018, 00:33

By saying fixed to the exhaust manifold bolts do you mean that it cant be taken off unless i take of the manifold? Sorry i sometimes dont understand