knocking sound over low speed road
Hi All, I wonder if anyone can help. I have a knocking sound coming from under the car when i drive down a road slowly if its uneven, so i took off the undertray, suspecting that some of the tiewraps were missing etc.. but the noise is still there.
I took this pic from under the front right side if the wheel area and you can see the cast iron lump there with a tube pointing down, well next to it above one of the sump screws there looks to be a join? in the metal. I cant work out if that should be there, or if its a crack of some kind. I have pulled and prodded all over the engine and i cant find anything thats loose.
I know the pic isn't great but maybe someone might have an idea on how it should be?? hope this makes sense?? btw its a 1.9 diesel.