Thread: Serious TDCi issues: a personal experience

Originally Posted by mark2

My Nissan Patrol TD42 has a loud rattle when accelerating through the gears when cold. It goes away as soon as it warms up.

The best diagnosis so far is piston slap.

That's just cold combustion

rattle on startup is very common in colder weather, as mentioned above, this is due the colder air being a lot denser, and the characteristics of compression ign , but should quieten within a matter of a minute depending on the coldness of air and engine. After that you need to be looking to fixing a problem, because that is what it is.