2008 Volvo V50 1.6d Engine noise problem?

nacsasoft · Post by **nacsasoft** » 07 Jul 2014, 11:46

Hi Volvo funs!

I have a Volvo V50 1.6d, year: 2008.
To hear a knocking sound from the engine(tak-tak-tak-tak-tak-tak). This sound normal?
I'm attached a video from my problem:

Thank You for helps!!!

Post by **jimmy57** » 07 Jul 2014, 14:46

Injector problem will cause noisy combustion from one cylinder.

To rule out engine mechanical noise drive up to 40-50 kph in 3rd gear and then coast. IF the noise is completely gone until the engine speed comes back down to 900-1000 rpm then it is not mechanical and is almost assured top be injector issue. combustion noises are gone when engine computer cuts off fuel delivery when you fully release throttle at engine speeds over 1200 rpm. Mechanical noise would not completely go away in the same test.

nacsasoft · Post by **nacsasoft** » 08 Jul 2014, 00:00

Thanks for the quick reply!

I tested on the basis of as and when I take the foot off the accelerator there is no sound.

Try an injector cleaner additive?

Post by **jimmy57** » 08 Jul 2014, 11:57

You can try that and also some automatic transmission fluid. ATF is a lubricant and has detergents. Cheapest type and brand for this purpose.

mattlincs · Post by **mattlincs** » 17 Mar 2017, 15:38

Hi,

I realise this original post was a while ago but I am having a very similar noise with my v50 and wondered if you managed to sort this problem out?

Was it fixed by cleaning injectors?..

I just had the flywheel and clutch changed as the main dealer said this was the source of the knocking/noise. It's still there though after repair and my local garage and a gearbox specialist can't identify or diagnose for sure. I'm hoping it is an injector problem and not something from the bottom of the engine...

thanks

Matt