Engine knocking in Ford Transit 2.0 TDCI | FORD

That sounds more like a bearing failure.

Does the noise change as the engine speed increases and decreases?

Either a real bearing failure or the hydraulic tappets

I had the same problem. I looked under the car and saw that the exhaust or pipe was no longer connected to the whole rod. Check it out, maybe it's just something simple.

I've thought about that too, but wouldn't you hear it at idle as well? It sounds completely normal at idle and when revving the engine while stationary.

The exhaust is definitely secure. The Transit had its general inspection (HU) last week.

When the engine is cold, you can hear the pinging very quietly when accelerating. If you step on the gas on the highway at 100 km/h, it's always there and really noticeable. I've also thought about the timing chain tensioner. Could that possibly be a cause? Does anyone have any experience with this?

Use a stethoscope to try and locate the noise from which area of the engine it is coming from. Could you upload a video of the noise?

Theoretically, it is quite possible that the noise is coming from there. Especially with that mileage, I would not rule out a stretched chain.

Unfortunately, the noise is only audible while driving. It's difficult to use a stethoscope then, and it runs really well when idling.

Is it easy to check for chain elongation on this engine? The engine has power.

To check the timing, the front cover would have to come off and the crankshaft sensor would have to be removed. So unfortunately not just a quick check. Try the video first. Does it not happen when accelerating while stationary?

I already thought so.

There is no pinging sound when revving the engine in neutral. It's definitely only under load. I'll try to make two videos tomorrow, one while stationary and one while driving.

Thanks for the support! :)

I'd be happy to, please only quote one of my posts so that I get a direct notification.

Hello Alexander, I have now used the reply function and hope that you will be notified. I have now made three videos. Unfortunately, the smartphone recording quality is really bad. The first video is at idle. The second video shows acceleration in a cold state, and the third video shows driving under load at approx. 100 km/h (very quietly audible in the background from the 9th second). I see that I can only upload one video per post. Is there another way to provide you with the videos?

Could injector coding also be a cause? The Bosch service wasn't entirely sure in which order to assign the new codes, whether the firing order or the cylinder sequence. It felt like the knocking was more audible afterwards.

During programming, you are usually shown the sequence in which the data should be entered. Of course, if they have been programmed incorrectly, they may not be perfectly adapted to the control and the pressures. You may want to have this done again at a Ford dealer.

Hey Andi, have you made any progress yet?

Hi Alexander, I have an appointment at Ford today. There should be a diesel expert in the building. I'm excited. Have you seen my videos? Regards, Andreas

According to experts, it's supposedly due to the fuel injectors. I should fill up with Ultimate Diesel and drive longer distances in overrun mode on the motorway. During these overrun phases, the injectors should adapt to the control unit. Doesn't sound entirely logical to me, but I'll give it a try. If that doesn't help, the Bosch service that overhauled the injectors did something wrong (according to experts). Now I have to empty my fuel tank first. I'll report back.